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How do you fix a coolant system leak? - Cars & Trucks

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-Depend on where it leak.
-From connector (Hose to pipe)>> Replace new clamp or tight more.
-From crack radiator>> Need new radiator.
-From engine wall>>> Need rebuild.

Good Luck

Mai Lor

Posted on Dec 04, 2014

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Dump a large can of ground pepper in the radiator (cold radiator) and refil with coolant. Put cardboard over radiator to block flow and start car, let get warm, not hot and watch pepper find leak and plug hole. It expands in water. if its a pinhole, it will seal. If its a loose hose, it won't. If its a head gasket, you'll get a soup smell out the tailpipe! Its worth the 2 bucks in pepper to try.

Posted on Dec 04, 2014


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What is wrong with pouring a coolant system sealant into the coolant system of an Audi Q7?

Hi, this is only a quick fix and the leak will come back maybe when you don't want it too.

Dec 22, 2015 | Audi Cars & Trucks

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Gurgling sound in the cab

Well yes and no. The gurgling sound is air in the cooling system moving thru the heater core. The cooling system is not full of liquid coolant.
As for the cause of the coolant loss, if you fix the external leak and you continue to loose coolant, the head gasket could also be leaking.

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These motors are famous for the intake manifolds leaking coolant.Have a pressure test put on the coolant system and look for a leak around the intake manifold corners.Check all four corners i've fixed many of these.

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How to fix a coolant on a car

How to Fix an Engine Coolant Leak Your car's coolant system consists of various components. The water pump, shaft seal, radiator, heater cores, freeze plugs, hoses and the engine itself are areas where leaks can occur. The solution for fixing a leak depends on where it's located. Read on to learn how to fix an engine coolant leak. jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); }); Difficulty: Moderately Challenging Instructions
  1. 1

    Locate the leak. This can be difficult, so take your time. Some leaks, such as those in the freezer plugs, are behind the engine mount or other components. You may need to inspect the car from underneath to detect this type of leak.

  2. 2

    Buy an anti-leak product and add it to the coolant to fix small radiator leaks. You can find this product at any auto shop for around $10. It's effective in 80 percent of minor leaks.

  3. 3

    Patch a small radiator leak by soldering or using a high-temperature epoxy. This is another solution to fix a small leak. Other options are to have it fixed at a specialty shop or simply to replace it. If the heater core is leaking, replacement is the best choice.

  4. 4

    Fix any cracked, busted or leaking hoses by replacing them. Simply remove both clips on the hose, pull off the hose and replace it with the new one. Make sure to put the clips back on.

  5. 5

    Remove a cracked reservoir, clean it and dry it up. Apply plumber's goop, which is a type of glue, and reinstall it. If replacement is necessary, ensure that you route the hoses correctly from the radiator to the reservoir. Additionally, it's important that they are free of kinks so the coolant can flow freely.

Read more: How to Fix an Engine Coolant Leak '

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2002 malibu runs hot.

Sounds like you have a faulty head gasket or maybe a cracked head.This can cause overheating and the check engine light to come on.The code for the o2 sensor is probably caused by coolant getting into the exhaust system and coating the sensor.The coolant fan may work but it cannot remove enough heat from the rad to make the engine cool off.Try some engine coolant stop leak to see if it will help.This maybe only a temperary fix.Let me know if you need more.MOE

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1 Answer

No heat , heater core replaced by dealer , not the problem , after numerous returns said lack of heat due to air in system , bled air , not a permanent solution , used to heat really good , no faith in...

Wow, there's a dealer to stay away from. For air to enter the system, coolant has to leak out. Sounds like you have a very slow leak somewhere, which, judging by the dealer incompetence and not being able to fix this, I'm betting the heater core connections aren't tight, allowing coolant to leak out, and causing your no heat problem. Pull back the carpet on the pass. side, look for dampness and evidence of coolant (you should be able to smell the coolant inside if there is leakage.
Hope this helps, and if it is the problem, the dealer should fix it for no additional charge. Also check the ground under the car after it's parked over night for any drips to help locate the source of the leak. Good luck.

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Engine coolant

you may want to try finding a tube of graphite usually sold at wal-mart in the automotive section that will clearly state it is for coolant systems; the graphite will build up around the hole and usually fix the leak; if not, consult your local mechanic to find the root of the problem... most likely a leaking coolant line, hose or radiator

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I'm leaking coolant, What will the problem be? Can I fix it my self?

see for crack's or leak in any of the water or coolant circulating line connected to the engine, radiator, & coolant resivor bottle. see for those part's this are rubber tube connected from engine to the water or coolant liquid cooling system. see for that if your coolant resivor is not crack or broken that can too also cause the problem. see for raditor weather it is ok or not & lastly finally see for water pump system in engine that can also cause the problem if still doubtful just look for your nearest VW, SKODA, AUDI ..etc. dealer or authorised service centre for the help & so till then my friend have happy motoring & see you soon....!

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1 Answer

Car overheating

if you have leaking in the cooling system the engine should ovarheat, first stop leaking.

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