Question about 1998 Buick LeSabre

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Engine does not warm up...changed thermostat, problem persists

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  • palmerfa Nov 18, 2009

    heat does not come into passenger area, and the temp gauge does not rise more than 1/2 way to 200 degrees.
    Top radiator hose is hot to the touch, so apparantly thwermostat works.

    Still no heat. ???

  • palmerfa Nov 18, 2009

    Engine not warming up was a bad guess. No heat is the problem.

  • yadayada
    yadayada May 11, 2010

    how do u knw the engine doesn't warm up? do u have a check engine light for this??

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  • Buick Master
  • 76,848 Answers

This is caused by a fault in the dual climate zone air temperature control blend door or the actuator that operates it.

Posted on Nov 18, 2009

  • yadayada
    yadayada Nov 18, 2009

    this is a very common problem, the dealer may have a quick fix for it.

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1 Answer

Heater not warming up


Most likely the thermostat broke. I expect that you have an older Hyundai and never had the anti-freeze changed. When the engine is cold the thermostat is closed which causes the engine to warm up more quickly. A warm engine runs more efficiently (less gas) and more smoothly. When the engine temp reaches a certain temp the thermostat opens and then allows the hot engine coolant to run through the lines to the heater core. The heater blows air over the heater core which produces the warm air that warms up the cabin. Thermostats used to be cheap and easy to change. I would suggest a web search for how to replace the thermostat. Something like 'hyundai accent 2002 replace thermostat".

Jan 10, 2014 | 1996 Hyundai Accent

Tip

How to change a thermostat in a 1998 corolla


If the Engine runs hot or overheats: Check the coolant level in the radiator when the engine is cold. Check the radiator hoses and drain **** for leaks. Check the radiator, radiator cap, coolant reservoir, heater hoses and all hose connections for leaks. The radiator should also be inspected to ensure it’s free and clear of leaves, debris, etc. Remove the radiator cap when the engine is cold; run the engine for 5-10 minutes with the radiator cap removed to release air bubbles from the cooling system (this procedure may need to be repeated). With the engine off and the coolant still warm, touch the upper and lower radiator hoses. They should both be warm. If one is cold, the thermostat could be stuck in the closed position, or, the thermostat may have been installed backwards. If the problem persists, visit yourToyota Dealer Service Department for diagnosis and repair. DO NOT DRIVE THE VEHICLE if the engine overheats.
To repair: 1. Remove the cover on the right side of the under-engine. Drain the engine coolantinto a sealable container.
2. Take out the fan and the V-belt on the generator, then remove the generator assembly. Remove the two nuts that hold the water inlet in place and then pull the water inlet.
3. Lift out the thermostat and remove the gasket. Clean the gasket mating surfaces thoroughly of dirt and old gasket material.
4. Put a new gasket on the thermostat, then install the thermostat so that the jiggle valve is on top. Make sure the thermostat is set within 10 degrees to either side of the prescribed position.
5. Connect the water inlet and set the two nuts in place. Tighten the nuts to 8 foot pounds.
6. Set the generator assembly in place. Refill the engine with coolant. Start the engine and check for leaks. Replace the right side cover under the engine. Your done!!!!! good luck and email me for questions - Bray2thaden@yahoo.com

on Mar 12, 2010 | Toyota Corolla Cars & Trucks

Tip

How to change thermostat on AUDI 1.9 TDI


Heed of antifreeze solution temperature!!!
You must check the thermostat operating. The thermostat location is on back of alternator at the bottom side of the bracket. IMPORTANT: It is NOT necessary to replace the alternator if you want to change the thermostat !!!
Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.
5. If the thermostat and the temp sender are OK the last piece out of order will be the instrument cluster.

on Dec 19, 2009 | Audi A4 Cars & Trucks

1 Answer

Heater is cold but abit warm when drivin audi a4 2005


Check & replace the engine thermostat if necessary.

Heed of antifreeze coolant temperature!!!
First time you might check the thermostat operating.
The thermostat location for 2005 Audi A4 1.9 TDI, is on back of the alternator at the bottom side of the bracket.
IMPORTANT: It is NOT necessary to replace the alternator if you want to change the thermostat !!!
Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):

tdisline_238.jpg


Important note: Always replace the round thermostat seal, position 7 in the above picture.

Please do rate my response. Thanks!

Feb 09, 2011 | 2002 Audi A6

1 Answer

Over heating


Thermostats in cars are often neglected, if not totally forgotten, units. Yet they play an important role in the general performance of cars by restricting water flow until the engine has warmed-up. Thermostats are heat sensitive valves that open and close. On cars they prevent circulation of coolant to the radiator until the engine is warm enough. When the thermostat is closed water only flows through the water pump and water jacket to let the engine warm quickly. When the thermostat opens, water can then pass through the radiator for general cooling.
google_protectAndRun("ads_core.google_render_ad", google_handleError, google_render_ad); Having a car that warms quickly is particularly useful in cold weather when you want to use your car heater as soon as possible. The thermostat is in a small housing positioned where the top radiator hose connects to the engine. The best time to check or change a thermostat is when you are servicing your radiator because you need to drain the cooling system
first. Hence, a thermostat change is a good time to flush and clean your cooling system, check all radiator hoses and the radiator pressure cap. Be sure you have the correct cap on your radiator and it is not rusted. Thermostats are small, inexpensive items. You can test them by heating in water and checking their operating temperature with a thermometer. However it really is quicker and ultimately more reliable to simply fit a new one,
1. thermostat common problems (replace every 50-60k miles)
2. thermostat switch sensor (which turn your cooling fan on and off)
3. check and see if the cooling fans is running when the engine get to its operation temperature. (fan motor can be fault)

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1 Answer

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It sounds like your thermostat may be stuck open, with the engine working hard the temperature of the engine comes up thus the warm air, but just at an idle the thermostat is letting the coolant circulate and not holding it their until it reaches a warm enough temp. You are most likely going to need to change the thermostat.

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1 Answer

93 plymouth Voyager temp gage gets hot only when


Your electric fan is probibly not running.Fan switch,fan relay or the fan could be bad.If it is getting hot and you pop the hood you should hear the fan running.

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1 Answer

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2 Answers

04' Passat Overheating


Hi!
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
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If persistent boil ups/over attention must made in the cylinder head
or gasket area, or possibly water pump?
Please press the Blue button to appraise my FREE Efforts, Thank You!
Paul 'W' U.K.

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