Question about 1997 Buick LeSabre

1 Answer

Thermastat varies in Tempature

Thermasat goes up to 160-170 then drops to130-140 and climbs to the 160-170 and drops again,this happens continuosly,has a new thermastat and has been checked for pressure

Posted by on

  • fplqnewc
    fplqnewc May 11, 2010

    Have you flushed your radiator lately or used a stop leak?  Does your radiator fluid look brownish or green (antifreeze color)?

    Might be water pump belt slipping or poor circulation in the radiator.

  • Michael Masters
    Michael Masters May 11, 2010

    Make sure the thermostat wasn't installed backwards. this can happen....



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 150 Answers

Sounds like the thermostat that is in the vehicle is a 180*. It should be a 195*. If this is not the case then check the temperature gauge sending unit.

Posted on May 21, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1998 subaru forester overheating heater blows cold air

Any chance of a head gasket leak? Is the coolant level still full? These were known for head gasket issues. Coolant is a closed system and level will not drop unless there is a leak. Make sure there is no air in the system. Replace the radiator cap to make sure that it is operating properly.

Mar 02, 2017 | 1998 Subaru Forester

1 Answer

Common issues with 1994 buick roadmaster

Has anyone tested the new temp unit to make sure it's functioning properly? Or is their possibly a mechanical thermostat in it that's hung and needs to be replaced?

Apr 28, 2017 | 1994 Buick Roadmaster

1 Answer

I replaced the thermasat there is no coolant in oil or oil in coolant exhaust has no smell of coolant yet after 20 minutes car overheats and boils back to resivor , temp gauge shows normal and not hot....

it sounds like you may still have air trapped in the system.
remove the pressure cap and fill the system up
with the cap off and the heater on the highest temperature, start the car and slacken off the highest hoses and make sure there is water coming out of them not air before retightening. do these one at a time keeping a close eye on the water level, topping up as needed. this should sort out any trapped air in the system.

it is possible that there is a problem with the head gasket that would not give a smell of coolant in the exhaust, this can be tested quite easily and cheaply in a garage

Feb 21, 2011 | 2000 Dodge Neon

1 Answer

Car running above normal tempature. It is at 222 and I replaced the thermastat.

when engine is hot very carefully undo the clip for the topmost hot pipe to vent any air trapped in system.

Jul 30, 2010 | 1999 Cadillac DeVille

1 Answer

I have an Audi A4 1.9TDi 2004. I was driving a distance of 25km and the car temp gauge went up twice on the journey and I got message on the dash COOLANT with a pic of a thermometer. I then drove 80km...

Make sure you uhave a good mixture of antifreeze it make the boiling point higher as well as the freeze point lower. Check the fans let it idle turn on the ac and wait and watch.If it gets hot and No fan comes on start there / thermastat The t-start should be open around 160-180 degrees you should notice it get to the threshhold then drop 10 degrees / heads check for water in the oil oil in the water .See if you can get a temp gun if every thing else checks good before you get into the wiring.

Apr 06, 2010 | 2004 Audi A4

1 Answer

Car tempature goes up only on hills.

I think your cooling system has air in it, Try and find a place around the thermosat that can be opened a small valve it may just look like a nut, with your car running and radiator cap off, turn the heater on and fill with coolant till it runs out the valve with out air, then top off the radiator to full. also top of the coolant overflow tank. I think this may solve your problem. Merry Christmas!

Dec 26, 2008 | 1995 Honda Accord

1 Answer

Not hot enough

check the thermastat

Nov 23, 2008 | 2002 Pontiac Montana

Not finding what you are looking for?
1997 Buick LeSabre Logo

Related Topics:

83 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

79865 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides