Question about 2001 Audi A6

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The engine keeps over heating, think it might be the thermastat - aui s8 4.2 v8 engine

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  • Sarahglover Aug 18, 2008

    that's what i thought .. will have to pull the car apart and let you know what happens..... cheers

  • trp364 Aug 29, 2008

    my engine over heated it is a 1.8 ADR engine the head warped & has been skimmed but now the water system pressurises very quickly & the heater inside is cold even though it is set to hot . Could this be the thermostat & where is it located Please

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If the engine got so hot that the head gasket went and the head warped. then definatly the thermostat they cant stand that heat at all. while doing that check the water pump and oil pump aswell just to be on the safe side.

Posted on Oct 21, 2008

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The Thermostates Do Jam

Posted on Aug 18, 2008

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1 Answer

My 97 lumina keeps over heating i changed the water pump thermastat and radiator cap and bled the system of all the air only water comes out when i losen the screw on the top hose next to the thermastat...


It could still have air in the system, or a leaking head gasket is putting cylinder compression into the cooling system. You can have engine compression leaking into the radiator without having coolant in the engine cylinders.

Sep 04, 2013 | Cars & Trucks

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I have a 1999 Pontiac Grand Am GT that keeps Overheating. I've changed the Water pump, Radiator, Rehotwired the fans to alway come on right when I start the car and only go off when I kill it. It


With a over heating problem the first place you always check is the thermastat.Thermastats ALWAYS go.
In fact every two years I change the thermastat wether or not it needs it just to be safe than sorry,I live in a snow belt and nothing worst than having no heat in the winter.
Something else you might keep in mind, over heating can do allot of damage most people don't consider, the transmission lines are connected to the radiator which cool the transmission

Feb 19, 2013 | 1999 Pontiac Grand Am GT

1 Answer

Where is the thermastat 2000 s type jag 4.0 liter


Hi there:
They say 3.0L but really is for a 4.0L diagram location... CHECK HERE

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Jul 06, 2012 | 2000 Jaguar S-TYPE 4.0L V8

1 Answer

2006 2.5 engine temp light is coming on. fan is working and coolant level is full. I`m thinking thermastat. where exactly is the thermastat located on this engine?


Is it over heating, put one hand on upper hose and the other on lower hose if ther is a big difference in temperature oh my you will have to change water pump why the propellor is plastic and have a tendency to break internally. Now hold on lets go at this step by step. in the plastic radiator there is a low coolant sensor there see if that rod pops up (do this when the engine is cold) if it is you are looking at a waterpump

Apr 21, 2011 | 2006 Volkswagen New Beetle

1 Answer

1994 silverado heat is not working. Replaced thermastat, heater core and checked fuses. Still no heat. The blower motor (high, med, low, is working fine.


I think that one still uses cables to control the blend doors and vent doors. Are you sure those are working and/or connected.

Also when you replaced the thermostat and heater core did you bleed the cooling system? With the engine cold remove the radiator cap and let engine idle up to operating temp while keeping the radiator topped off with coolant.

Are the hoses going to the heater core hot?

Dec 06, 2010 | 1994 Chevrolet Silverado 2500

2 Answers

HOW TO CHANGE THERMOSTAT ON THE V-6


First make sure engine is cool.
-Put drain pan under car, coolant will run out.
-Remove the TOP radiator hose that runs to the metal thermastat housing. Coolant will now be running out, try and direct it to the drain pan below.
-Remove the thermastat housing, BEFORE removing the thermastat make sure you TAKE NOTE at how it is situated in the casting.
- Take the thermastat housing and run a wire brush on the flat spot were the old gasket material is.
-Both mating sides of the thermastat housing MUST BE PERFECTLY CLEAN. There can not be any old gasket material left.
-Insatll new thermastat.
-Put a very light amount of PERMATEX orange high temp. silicone on BOTH sides of the new gasket.
-Put a small amount on bolt threads also.
-Now install thermastat housing, and bolts.
-Tighten bolts down a little at a time, alternating between the two, unitl till they are tight.
-Install the radiator hose, and tighten hose clamp.
-Remove radiator cap, pour in coolant, until it sits just below the radiator cap neck. This may take a little time as the system has some air in it.
-Install the radiator cap. Make sure you radiator overflow tank is filled properly.
-Remove the drain pan, make SURE ALL the tools use used are secure, and out of the engine bay.
-Start engine, and place your heater control to 'HEAT"
-Let engine run until the top radiator hose is hot, which means you thermastat has opened.
-Keep watching the engine temp AT ALL TIMES, we wnat to make sure there is no air in the system.
-Inspect for any leaks. Now when the top radiator hose is hot make sure the hose clamp is tight.
Please let me know how it goes.

Feb 11, 2010 | 1993 Buick Skylark

2 Answers

Replaced radiater ,thermastat still no heat and


Did you run engine from cold, WITH HEATER ON, and fill cap off when re-filling system? If not, try that and see what happens. Let the engine get up to operating temperature and rad fan come on to cool 2 or 3 times before putting cap back on.

Nov 17, 2009 | 1995 Subaru Legacy

1 Answer

Got a Toyota Hilux 93 over heating


it could be the thermastat,radiator

Apr 10, 2009 | 1990 Toyota 4Runner

1 Answer

2000 Daewoo Leganza heat gets just luke warm!!!


I have the same problem. we changed the thermastat. the engine coolant was full of muck and looked rusty like something was rusting away.we then back flushed the system including the heater core.It's alot better but we think the water pump propellers are rusting away. this sometimes happens. so we are keeping an eye on the temp to see if it is getting to hot or over heating if so the the water pump needs replacing. I would have the system back flushed to see if that helps you could be having the same problem I' having. Hope this helps.

Nov 02, 2008 | 2000 Daewoo Leganza

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