Question about 1994 Buick LeSabre

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Overheats car overheats and have put in new plugs, oil, flushed out radiater, put in new thermostat

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Check the water pump and make sure the radiator is clean also check for clogs in the cooling tubes

Posted on Jul 31, 2008

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Engine overheats with no thermostat in and new radiator.


sounds like the block is plugged or the head-gasket is bad. Have you had the block power flushed? check for water (dark milky or foam) in your oil.

Dec 22, 2013 | 1994 Nissan Pickup

1 Answer

97 aurora overheats new stat flush system oil not milky or over filled new cap still overheat but when i put the cap on half way tighten i dont overheat whats my problem


Was the engine overheating before you replaced the thermostat ?
By not putting the cap on tight, you are not allowing the cooling system to build up pressure. So it could be a restriction somewhere like a radiator hose.

Apr 23, 2013 | Cars & Trucks

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Car overheats on freeway


Check your oil dats da only other solution to this problem your car might be burning oil and cause it to run hot

Aug 04, 2012 | 1999 Cadillac DeVille

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We have an 1998 olds intrigue. I have had the radiator flushed new hose, new thermostate put in about a month ago. The car is still overheating what could be the problem


remove thermostat, and see if it still overheats, check thermostat by boiling water, and drop thermostat in and see if it opens, if opens get new radiator!

Sep 08, 2011 | Oldsmobile Intrigue Cars & Trucks

1 Answer

1990 toyota pickup is running hot and when i shut


Try with the small stuff first. Replace the thermostat. Before you do that, you should flush and refill your system with just water after the flush process. The bottle of solution that you put into your radiator to flush it and clean it has instructions, follow those. Then let the car cool down and drain the system and refill it with fresh water only. Run this water for a bit and then do it once more. Once cooled back down , replace thermostat and replace the 50/50 mix of antifreeze and water.
Check engine oil level as well, low oil will overheat engines quickly.
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !!
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !!!

Aug 06, 2011 | 1990 Toyota Pickup

1 Answer

What can cause overheating problems in my 87 el camino? I have already changed the thermostat, flushed the engine and radiator. Radiator is new about 2 yrs old.


2 years is not new...it might be the problem...
look and see if the head gasket is leaking oil...if so the you need to get that repaired...the oil might mix with the coolant and overheat the car...
good luck!

Sep 24, 2010 | 1987 Chevrolet El Camino

1 Answer

My 84 cressida is overheating (has new radiator cap new thermostat & gasket have flushed the cooling system replaced the fan clutch with another {not new...used} new antifreeze too) has no leaks no...


It really seems like you'll need a radiator. The rad can appear to have good flow because even if it's plugged, coolant will bypass the cooling fins. If you can get at it, try putting your hand on the surface of the radiator when the engine is hot but not running. The rad will fell relatively cool across the surface if it's bad...hot if coolant is flowing through the core. Those hand-held laser thermometers are handy for doing this as well.

Jun 25, 2010 | 1989 Toyota Cressida

2 Answers

96 GMC Suburban Started to overheat last summer.


It is probably head gaskets - These need to be replaced.

Aug 02, 2009 | 1996 GMC Suburban

1 Answer

1995 Pontiac Grand Prix GTP 3.4 L


There could be several reasons that may cause an engine to overheat. It sounds like you have covered the most important ones. Thermostat,radiator and water pump. Hopefully you do not have internal damage, cracked head, head gasket, or a cracked block. I would try flushing the heater core and pay close attention to what comes out. You know, is it clogged with stop leak or rust. Then while I was flushing that I would drain the entire system and put in some Prestone super radiator flush. You just add plain water with it and run your vehicle for about 10 minutes. You then empty your cooliant system and refill with antifreeze. The flush works pretty well and if there is an obstruction from a previous owner putting stop leak in the system it generally will clean it out.
BTW, are you sure the thermostat is in properly? Not upside down? I think I would start there before I went through all of the work of flushing the system. It actually sounds like from everything you've done already, that's possible. Hey it does happen once in awhile. Was this car overheating when you bought it? If so, maybe the previous owner put it in upside down, and when you changed it put it in the same way by accident.
Hope this helps.

Mar 10, 2009 | 1995 Pontiac Grand Prix

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