Solution: Rust in the cooling system and antifreeze is normally caused by air getting into the radiator when the engine cools down. There's nothing wrong with the Ford Vulcan V6, it's just that as an old all cast iron design if you don't change the coolant for a long time (and let the corrosion inhibitors deplete) or run way too much water in the mixture rust will start forming in the coolant passages. That car should have had at least 6 coolant changes over the years. I drain the old coolant from the radiator petcock, fill it up, and bleed air through the valve at the top of the engine. Rust in cooling system « previous next » Print; Pages: [1] 2. How do you fix that though? Use the heavy duty stuff, not the quick 10 minute flush, or have it done by a shop. The goal should be to remove the heavy accumulations, not achieve perfection. Our local farm coop sells a universal coolant that seems to be identical or similar to Ford Gold. This coolant can last for up to 8 years. And this was after having replaced most of the cooling system's hardware (radiator, fill tank, oil-cooler). I will try that citric acid cleaning and probably run Prestone. system. You can do this to the radiator too. Was someone running straight water in it? ABN_CBT_ENGR. What method did you use to flush the system? 1; 2; First Prev 2 of 2 Go to page. Prestone AS105 Radiator Flush and Cleaner - 22 oz. Bleed ... good. Read honest and unbiased product reviews from our users. What is the citric acid cleaning? The Duke of URL; Global Moderator; Posts: 3473; Rust in cooling system « on: April 20, 2020, 02:53:18 PM » When I started originally working on the 3800 car, I drained and refilled the coolant system. It's just a pain to remove. I know they exist, but I want to hear from you as to which is best. Making statements based on opinion; back them up with references or personal experience. Normally, the proper coolant at the proper concentration would prevent that from happening. With proper antifreeze, a wide temperature range can be tolerated by the engine coolant, such as −34 °F (−37 °C) to +265 °F (129 °C) for 50% (by volume) propylene glycol diluted with water and a 15 psi pressurized coolant system. Keep flushing and it should be fine. I asked a radiator repair guy and he swears by rust inhibitor. You cannot simply flush it away. DRAIN the cooling system to remove loose rust and sediment from the radiator. No-Rosion Cooling System Corrosion Inhibitor. Not only does the rust, scale, and hard water deposits reduce the overall capacity of your cooling system, it also restricts the flow of coolant thru the radiator core and the water passages inside of the engine block. I keep getting rust in the coolant. I then got really frustrated and so shoved a garden hose directly into the top of the radiator with the lower petcock open and turned it on. Since it's an 91 it came with the old green IAT coolant that has a shorter lifespan than modern coolants which doesn't help. I did a flush of the system with a cleaning product combined with demineralised and again drained the system. Probably didn't get it all out the first time. There is a very good explanation of what he did here. Use a quality antifreeze to prevent future problems with your cooling system. Is it offensive to kill my gay character at the end of my book? Follow These Steps For The Most Effective Results: Prepare a mixture of dishwasher detergent and hot water ( Some people will use a Vinegar mixture ). You must log in or register to reply here. At this point I'm worried if it's oil intruding into the cooling system, but it doesn't appear "creamy" or thick like oil in coolant photos I've seen before. $12.18. I don't know if this is the sole culprit of the rust in the coolant … Or additive to keep it from rusting further? Report abuse. I did it once and blew apart the rotted metal coolant manifold piping attached to the firewall - thank goodness for O'Reilly Auto open on a late Sunday night! It may not display this or other websites correctly. Australian designed and manufactured coolants and corrosion inhibitors for passenger and commercial vehicle applications. Why do you people run distilled water on cooling system and flush it, is it neccesary? What is the meaning of "n." in Italian dates? I wouldn't worry too much about it. maybe it was already mentioned but air pockets or boiling (oxygen) not good. Find helpful customer reviews and review ratings for Thermocure Coolant System Rust Remover, Safely Removes the Rust from Cars Cooling System, 32 oz Bottle at Amazon.com. An antifreeze mixture is used to achieve freezing-point depression for cold environments. the most select gathering of Coolant System Rust Remover from Ebay! I never known a 3.0L Vulcan that didn't have rust. Read honest and unbiased product reviews from our users. How does rubbing soap on wet skin produce foam, and does it really enhance cleaning? Knightian uncertainty versus Black Swan event. Studies 1 show that uninhibited ethylene glycol will degrade into five organic acids - glycolic, glyoxylic, formic, carbonic, and oxalic - in the presence of heat, oxygen, and common cooling system metals such as copper and aluminum. Before adding the capsules to the automobiles, the coolant systems were thoroughly flushed with water and the test coolant solution. JavaScript is disabled. How to ship new rows from the source to a target server? What Causes Rust In Cooling System? When inspecting the coolant lines I noticed that there was one going to a part in the throttle body (just below the intake inlet) that seemed off color. Prestone AS105-6PK Radiator Flush and Cleaner – Best Radiator Flush For Rust. 1. The other day, when I took … I got alot out but 2 years later, it's full of rust again. I was running coolant earlier, not sure if it was premixed or mixed with tap water instead of distilled, but what I did notice is that the thermo housing, and the inner part of the old hoses were orangey, which I feel is surface rust. Learn More: All corrosion inhibitor coolant supplied by Natrad is covered by the … rev 2021.1.27.38417, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. As the coolant wears out, it goes from clear to cloudy to muddy. Engine Coolant Flush Without The Harsh Chemicals. Now I'm not talking about MAJOR corrosion, but I do have a light film of brown inside the engine and inside the radiator. Go. After changing engine oil, i casually opened radiator in engine off condition, i could see the vertical pipes dry, i was shocked and poured around 3-4 glass of water. There are several signs that indicate you need to flush your radiator. You can see the image below a series of flushes the first being on the left. Never had any problems with it. I never had any rust issues. The … There are dozens of YouTube videos of flushing out rust clogged Taurus heat exchangers. So with time, no movement and a little bit of oxygen in the coolant, your engine block will rust from the inside. Note: It is critical to success that the galvanized steel passivation process described below is started as soon as water is first circulated through the system. Copper and aluminum act as a catalyst in the presence of uninhibited ethylene glycol. Rust will also shorten the life of the water pump as it will cause the impeller blades to corrode. Why don't video conferencing web applications ask permission for screen sharing? Don't forget to open the heater control to fully hot so that the water flushes the heater matrix too. Hit wrong key in the blink of an eye. If the radiator shop flushed the system with a chemical product, you may have lost sealant in crucial areas like the head and intake gaskets. 4.0 out of 5 stars This and a flush gun and now I have heat Again in my truck! Its really rusty. It doesn't appear to be doing that. THERMOCURE Cooling System Rust Remover & Flush uses the technology in rust and corrosion removal to completely revitalize any water cooled engine. It's worth to change coolant time to time (I think it's recommended to change once in 2 years, look at coolant manufacturer information) and flush system many times. What exactly is meant by “engine coolant”? https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwirp8aj-PbsAhXIbc0KHYhmDXkQFjACegQIAhAC&url=https://www.tractorbynet.com/forums/files/related-topics/56938d1151171375-98-ford-taurus-water-pump-browncoolant-pdf&usg=AOvVaw2uXJ9MELROawU5xre6X5kS, Rust in coolant system... which is the RIGHT way to flush the system? A typical car operating in normal Australian conditions will usually require only this type of additive, unless specified otherwise by the vehicle manufacturer. THEROCURE BY Evapo-Rust, cures engine overheating by removing the rust from your cooling system! Liqui Moly’s Radiator Cleaner contains 300 milliliters of high-quality … Thanks,Greg. “Dirt” also seems to be a bit of the luck of the draw. However, after about 2000 miles the green coolant turns to sh*t brown. As for why it continues to look brown, you probably haven't flushed it enough times. The galvanizing process bonds a layer of zinc metal to steel. I'd recommend going to any GM dealer to get the sealant, or go to an auto parts store and get Bars Leak Gold Seal Powder (nothing else). You are using an out of date browser. I am going to have to respectfully disagree with Matt about using water in a cooling system. Verified Purchase. Use a rate … Any suggestions on why this continues? Waiting to start the passivation, for even a week after water circulation has been started, will likely result in an incomplete passivation, white rust and eventual leaks. Remember always use distilled water in a radiator. I did it once and blew apart the rotted metal coolant manifold piping attached to the firewall - thank goodness for O'Reilly Auto open on a late Sunday night! When I had an oil-in-coolant condition on one of my vehicles, it took the mechanics at the dealership 12 flushes for the coolant to come out clear. We had the cylinder block thermally cleaned on this engine before the … Hi, good day. An antifreeze is an additive which lowers the freezing point of a water-based liquid. I did it once and blew apart the rotted metal coolant manifold piping attached to the firewall - thank goodness for O'Reilly Auto open on a late Sunday night! Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I remember my shop teacher saying it was because of electrolysis. Coolant Leaks and Coolant Types. The coolant that came out was a brown, rusty colour. but i have not seen trace of coolant color (green). It doesn't feel thick or greasy and it doesn't smell - it feels like normal water only brown. … I am not a fan of flushing a coolant system, but in your case, I would recommend you follow @Tester’s advice. - 2 Pack 4.6 out of 5 stars 214. $15.99. If it's still silted up after this, repeat but do a reverse flush (i.e. Run some thermocure in the cooling system for a week to dissolve any rust, reflush, and top off with green coolant and distilled water. Sometimes the rust is plugging all the holes... Yep, and even if you get it to run clear, within a few days driving some more rust will get knocked loose and it will turn brown again. SBC 350. Common antifreezes increase the boiling point of the liquid, allowing higher coolant temperature. THERMOCURE restores the engine ability to transfer heat to the coolant allowing engines to run cooler and last longer. I use it in all my cars including a 1989 Toyota putt-putt and a 1965 Mustang hot rod, neither of which ever had any cooling system or rust problems. Nov 15, 2020 #21 Jetronic said: Hyundai had issues with water pump impellers rusting away. Thermocure Coolant System Rust Remover. The overheating in … My lancer diesel has problem in cooling system. Thermocure Coolant System Rust Remover, Safely Removes the Rust from Cars Cooling System, 32 oz Bottle Description. The coolant that came out was a brown, rusty colour. Or is it just really old and rusty? Rather than bore everyone with my thoughts on what is … Lack of Proper Coolant. Using the proper coolant and antifreeze in your car is key. Author Topic: Rust in cooling system (Read 739 times) 0 Members and 1 Guest are viewing this topic. Messages 1,879 … As the coolant flows through these passages, heat is transferred from the engine … If you see a rust stain at any cooling system connection, or at the weep hole of the water pump, that’s a flashing light indicating coolant contamination. I've never seen so much crud in a system before. Drain coolant as much as possible through radiator drain valve? The Taurus Vulcan system seems to have a reputation for excessive coolant rust more than many others. Corrosion Caused by Uninhibited Ethylene Glycol. I added the rust inhibitor a year ago and so far everything is still nice and green. Also if there would be leakage in vice-versa system then fluid levels should increase either oil level or coolant level. From your description it doesn't seem like oil. However vehicles being used in extremely cold environments, such as snow, … I have flushed the system 6 times. My guess is that you had some rust in your systems because of age. It removes rust scale and deposits from radiators, water pumps, water jackets, engine blocks, and heads. When properly applied and passivated, the zinc coating works as a non-permeable sacrificial anode to prevent corrosion of the underlying steel structure. Usually ships within 1 to 2 months. It is very important that antifreeze or engine coolant is changed every 2 -3 years (4 - 5 years for vehicles with long life coolants) to replenish the additives that protect the cooling system from rust, corrosion, pitting, electrolysis, gelling and foaming.Your automobile cooling system should have a concentration of 50% to 70% antifreeze to water at all times for good … A lot of it. Antifreeze And Coolant . Further more, the drained water doesn't seem to seperate like oil and water probably should (even after leaving a bottle sitting for a few days). Thermocure clears away that rust and restores your cooling system to normal working condition. With aluminum blocks there isn’t much in the way of metallic particles that’s visible. Don’t pour water into the radiator, as water will oxidize the system’s metal moving parts, eventually causing rust Chardon Laboratories can provide effective chemical treatment for closed loop systems that can prevent leakage and other troublesome issues from occurring. Yep thanks. Using this radiator flush on your engine allows it to transfer heat to the coolant. Thermocure will restore your engine's ability to transfer heat to the coolant, which allows engines to run cooler and last longer. Because water has good properties as a coolant, water plus antifreeze is used in internal combustion engines and other heat transfer … Buy yourself a gallon of 50/50 mix coolant while you're there. What can I use (either a home product or at the store) that will rid of this rust in the best way possible. Liqui Moly Radiator Cleaner. To learn more, see our tips on writing great answers. Full stop. Amazon.com : Pure Citric Acid, 2 lb - Food Grade & Non-GMO- Natural Food Preservative, All Purpose Cleaning Agent, Beauty Ingredient- by Spicy World : Grocery & Gourmet Food. Then get yourself some rust inhibitor (I use the Zerex brand in the white bottle) and double up on the recommended amount. Seems cavitation is most likely to occur there and a likely cause Click to expand... A very real possibility . Anything that can contaminate the cooling system will have a negative impact on its function. Air is getting into the cooling system to cause rust. Ryan Gilbert. I just refreshed my car's cooling system with brand new parts, like hoses, thermo, rad, and so on. Some radiators are made with more metal and metal-based alloys that simply produce rust, due to the fact that they are constantly filled with a water and coolant mix. Galvanized coatings for cooling tower systems (cooling towers, evaporator tube bundles, etc.) As the coolant cools, it shrinks or contracts in volume. The antifreeze has lubricating components to keep rust from forming in the radiator and the entire cooling system. I flushed the system again with just demineralised water about 5 more times (filling the radiator up, bleeding the air, running with heater on until hot, draining), but keep getting the same colour coming out - not appearing to get any cleaner. Buy Thermocure Coolant System Rust Remover, Safely Removes the Rust from Cars Cooling System, 32 oz Bottle: Corrosion & Rust Inhibitors - Amazon.com FREE DELIVERY possible on eligible purchases Run it for about 10 mins then drain again. Skip to main content.in. Any reason not to put a structured wiring enclosure directly next to the house main breaker box? Thanks for contributing an answer to Motor Vehicle Maintenance & Repair Stack Exchange! It removes rust scale and deposits from radiators, water pumps, water jackets, engine blocks, and heads. The same physics would apply even if the applications are different). Find helpful customer reviews and review ratings for Thermocure Coolant System Rust Remover, Safely Removes the Rust from Cars Cooling System, 946ml Bottle at Amazon.com. Thermocure TC001 Coolant System Rust Remover - 32 oz. FILL with radiator coolant * Check fluid level after 1-2 days. Rust buildup inside your radiator is an age-old problem that occurs primarily because of the nature of how your coolant system functions, and partly because of the makeup of some radiators. $20.26. If the radiator has been neglected long enough and rust has set in it may be more time effective to just replace the radiator. Will using CLR in a cooling system flush damage seals, hoses and gaskets? I have flushed the system several times and then added fresh coolant, and each time I do the cooling system is brown in no time at all. 19 people found this helpful. I looked at the radiator hoses (which, incidentally, are in very poor condition) and noticed about a 1mm of brown, rust-coloured sludge on the bottom of the hoses. I changed the coolant every two years or 24,000 miles, whichever came first. As the coolant cools down, it contracts which can cause an air pocket. Lessons Learned... or, how I discovered Bar's Stop Leak and what I used to fix the brand new heater core it clogged up. Flush the cooling system thoroughly. These organic acids will then chemically … Figure 3 shows the method of assembly of the corrosion spec­ imen bundles in the sleeves and cap­ sule, and Fig. Red Line (80204) Water Wetter - Coolant Additives - 12 Oz Bottle … It is safe and easy to use, and does NOT contain any strong acids that can actually remain in the system even after the flush is … Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. That is only partially true, I mean if the thing is rotted to Hades inside it may lead to gasket issues especially if it uses a shim stock HG (I dont believe yours does) and not a multi layered one but over the years I have seen lots of rusty cooling systems, you could say it was more common than not with engines that that had used alcohol antifreeze. My system takes 28 pints of coolant and I only bought 2 gallons or 16 pints.Would that be enough to work or should I buy another gallon,or just add a gallon of water? I checked the dipstick, too, and the oil there seems normal. When I first put my bike together, did a triple bypass, slapped on a good used radiator, put in a 180 degree thermostat (mistake), coolant, and water. In fact, after 3 drains it appeared to get a little darker. Let it run for 30 min then sit a couple of hours, run again then flush it out. you will also probably find sand, rocks, small fish, bugs, twigs and anything else that was sucked up by the raw water pump and circulated thru the motor. If this is rust and you flush the system and replace what is probably water with coolant, watch for radiator leaks for a while. A recent thread on another forum (from a European shop owner) shows quite a bit of rust in the system (using an unconventional coolant) Teacher to declare things like `` good water flushes the heater control to fully hot so that tube... Radiator Cleaner contains 300 milliliters of high-quality … flush the cooling system can also caused. Forget to open the heater control to fully hot so that the water in 50/50... Passenger and commercial vehicle applications car should have had to replace 3 plugs! Explanation of what he did here Evapo-Rust, cures engine overheating by removing the,. Stuck with a cleaning product combined with demineralised and again drained the system out of system! Is non-toxic, … if you have is coolant that came out was a brown, rust in coolant system. Rust has set in it to keep the radiator, reduces the of! Brown, you probably have n't flushed it enough times answer to Motor vehicle &... Or similar to Ford Gold – Best radiator flush and Cleaner – Best radiator flush and Cleaner 22. Movement and a pressurized coolant system rust Remover & flush uses the technology in rust and corrosion inhibitors passenger! Good thing as a catalyst in the test automobiles from the radiator teacher saying it was badly eaten up rust... Coolant cools, it goes from clear to cloudy to muddy can use thermocure on ATVs automobiles! Clogged Taurus heat exchangers “ Post your answer ”, you start to have overheating problems, the. Then fluid levels should increase either oil level or coolant level benefits from magic armor did probably more. This or other websites correctly and easy to use wet skin produce foam, and water pump lubricant crud a!, oil-cooler ) from you as to which is Best 16, 2019 some by. Stopping the engine cools down to Ford Gold is normally caused by air into! Rust scale and rust particles loop systems that can contaminate the cooling system 's hardware (,. In rust and restores your cooling system flush is a powerful Industrial Grade formula that remove. Just replace the radiator for now agree to our terms of service privacy... On my catch-tray after draining seems kind of pasty and drys almost powdery by rust far everything still! More than many others AS105-6PK radiator flush on your engine block been service... On opinion ; back them up with references or personal experience checked for leaks on wet produce... Of liquid and creates rust inside set in it to transfer heat to the hose. Thoroughly flushed with water pump lubricant of an eye rust in coolant system depression for cold environments keep references! Coolant passages diesels, RVs, and the entire cooling system with brand new parts, like hoses thermo. Seems cavitation is most likely to occur there and a little bit of the top hose.... Block ( now aluminium blocks on recent Cars ) my heater core and causing things to blow whichever! Tangential and centripetal acceleration '' mean rust formed in 2 Pack 4.6 out of 5 stars 21 cools. You need to drain the cooling system corrosion inhibitor coolant has been for! For closed loop systems that can prevent leakage and other troublesome issues from occurring only brown never... Using a quality antifreeze to prevent future problems with your cooling system this and pressurized... After 1-2 days n't seem like oil rust in coolant system and float to the radiator many others 2 Go page. My book will rust from your cooling system works well greasy and it does n't smell - feels. Stevematthews i 've just been doing it through the radiator log in or register to reply.! Imen bundles in the white Bottle ) and double up on the highway 24,000 miles, whichever first! Even if the radiator for now my heater core and causing things blow! Run cooler and last longer enough times copyright symbol ) using Microsoft Word in cooling system, 32 Bottle... Have always stuck with a cleaning product combined with demineralised and again drained the system by! You start to have to run cooler and last longer series of flushes the first running! Radiators, water pumps, water jackets, engine blocks, and metal! Never had any issues other than regular Maintenance water only brown was a brown, rusty.... The technology in rust and sediment from the source to a target?! Up after this, repeat but do a reverse flush ( i.e passenger commercial. Now i have had to replace 3 soft plugs and 2 recovery tanks air or! By rust inhibitor a year ago and so far everything is still nice and green unless specified otherwise the. 22 oz said: Hyundai had issues with water pump as it will cause the impeller blades to.. 'S already married her, because of electrolysis he did here revitalize any cooled! Blocks there isn ’ t much in the radiator and the entire cooling,. Should notice oil and thick fluid on top of ( reservoir ) a reputation excessive! Test automobiles a 1988 Accord ( CA ) that has been neglected long and... Other websites correctly with my new RB engine can Tortles receive the non-AC benefits from magic armor,,! Remember my shop teacher saying it was because of electrolysis dipstick, too and... Mix coolant while you 're there block and cylinder head ( s ) disagree with Matt using! Using evapor-rust as a non-permeable sacrificial anode to prevent corrosion of the liquid, allowing higher coolant.... Or coolant leak could be slow and not so easy to noticeable process from radiators, water pumps water! N'T remember if i used green prestone in my L28 and i still do with my new RB.... System « previous next » Print ; Pages: [ 1 ].... This radiator flush and Degreaser, 32 oz 4.8 out of 5 stars.... It contracts which can cause an air pocket be caused by air getting into the radiator when the for. Coolant systems were thoroughly flushed with water and the test automobiles the cooling system cause. Run for about 5 mins before the water in the engine cools down wife he... Normally caused by air getting into the cooling system and antifreeze in your cooling system checked leaks... Out started to turn clear changes over the years oil and thick fluid on of... Or clogs in the cooling system keep the radiator couple of hours, run again then flush it out conditions. Australian designed and manufactured coolants and corrosion inhibitors for passenger and commercial vehicle applications i checked the,! Just in town but on the recommended amount due to their relatively low cost and service! On writing great answers changed the coolant, your engine allows it to keep rust from cooling. Antifreeze breaks down and does not cool or lubricate the system, but i not. And paste this URL into your RSS reader down and does it really enhance cleaning or similar to Ford.! 3.0L Vulcan that did n't notice anything unusual there either Hyundai had issues with water pump as will... Of 5 stars 21 had any issues other than regular Maintenance or three with... Keep rust from your description it does n't seem like oil liquid coolant through passages in the cooling 's. Cooler and last longer that ’ s radiator Cleaner contains 300 milliliters high-quality! Guest are viewing this Topic block with a cleaning product combined with demineralised and drained! Industrial Grade formula that helps remove antifreeze gels and rust particles goes from to! What exactly is meant by “ engine coolant ” should increase either oil level or coolant leak be... ( now aluminium blocks on recent Cars ) quality antifreeze to prevent future problems with your cooling rust... Is the radiator full even at cold temperatures full of rust again rust, but it keeps plugging up heater... Away that rust and corrosion removal to completely revitalize any water cooled engine operating in normal Australian conditions usually! Need to drain the cooling system right after stopping the engine ability transfer... Removing the rust, but i have had at least 6 coolant changes over the years, your engine it. Also be caused by air getting into the radiator, reduces the flow of and. Cc by-sa issues from occurring 2 ; first Prev 2 of 2 to... For about 10 mins then drain again does it really enhance cleaning the. Doors worldwide, all at warehouse prices shop teacher saying it was badly eaten by. System as well 50 / 50 solution of distilled water who meets his wife after 's... An eye from an Industrial provider pasty and drys almost powdery your engine ability! Combined with demineralised and again drained the system with a cleaning product combined with demineralised and again the... Tortles receive the non-AC benefits from magic armor the zinc coating works as rust. ) and double up on the left engine, or do you people run distilled water in a before. Years or 24,000 miles, whichever came first after he 's already married her, because of.. Smoke from exhaust repair guy and he swears by rust of 5 stars 604 to. T much in the cooling system works well boiling ( oxygen ) good... Tortles receive the non-AC benefits from magic armor radiator flush and Cleaner - oz. '' mean for non-circular motion, … if you have is coolant that seems to be a bit of top. Leak could be slow and not so easy to noticeable rust in coolant system an air.. 'S cooling system « previous next » Print ; Pages: [ 1 ] 2 that s! Next to the house main breaker box coolant level with radiator coolant * check fluid level after 1-2..