Question about 1996 Chevrolet Impala SS

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Engine is overheating and a new thermostat has been installed

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Make sure the radiator is circulating and set at right temperature, check water pump, make sure radiator fans working

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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SOURCE: 2004 Jeep wrangler 4.0 - 6cyl overheating

Yes, for the price of a thermostat and the real possibility of getting a faulty one (that won't open or won't open fully) out of the box, I'd try another one...

If it still overheats, the water pump might be a probable culprit. It might not be sending enough water flow to cool the engine. Even with the thermostat fully open, it still restricts the water flow compared to no thermostat at all... When you take it out, it might flow enough that the engine does not overheat anymore.

Posted on Sep 02, 2008

blueextc3221
  • 15935 Answers

SOURCE: white coloured engine oil, overheating

White oil means water or coolant is leaking in via Head Gasket Failure or a crack in the head. Along with repair - be sure to have each cylinder compression tested to see if there is a crack that has developed. Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Posted on Jun 09, 2009

polarcycle
  • 1392 Answers

SOURCE: overheating problem

I would go with slowcalafl. It is either air, or a cracked head bad head gasket. Remove the radiator cap when cool. Start up the car and watch for bubble emerging from the coolant. If it continues to bubble, you have a bad head or head gasket. If not, look for improper timing as another possibility.

Posted on Jun 30, 2009

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Ford explorer 2007 v8 4.6 L Overheating in summer


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Engine overheated , got second hand engine but still overheating after new Radiator and thermostat. What could be the problem


-Remove the thermostat and flush the engine back and forward couple time with water. Then re install the thermostat back to. Make sure the thermostat's spring or bottom go inside the engine.
-Make sure the water pump is in good shape, belt drive the water pump must be good tight.
-Try this you should be good to go.

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Is is safe to take off thermostat on a 1996 jeep grand cherokee limited?


Thermostats are used to keep the engine operating in the optimum temperature range. Generally speaking, it is safe to remove the thermostat in summer conditions. Coolant will flow continuously with no restriction. In winter months and below freezing conditions the engine may not reach proper operating temperature. Removing the thermostat may help you find the possible over-heating problem.

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How do i replace my thermostat on 1998 eldorado


  1. Install the thermostat.
  2. Install the thermostat housing using a new gasket.
  3. Install the thermostat housing bolts. Tighten the thermostat housing bolts to 89 INCH lbs. (10 N.m).
  4. Connect the radiator hose.
  5. Install the air cleaner outlet duct.
  6. Refill the coolant.
  7. Start the engine.
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1997 Cirrus is still overheating... The heater does not blow out hot air...would the heater core cause the vehicle to overheat? if not, what other problems am I looking for, I was loosing anti freeze...


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I replaced the thermostat, now the temp guage is reading hot.


System may be vacuum locked. Also make sure you added enough coolent. Also check to make sure you didnt instal the thermostat backwards. If it is vacuum locked, wait for the engine to cool down then remove one of the radiator hoses and put it back on. let it run for awhile with the heat on high.

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One mechanic said need new water pump another said new radiator for overheating problem ?


Overheating is caused by a thermostat being stuck closed, low fluid level, or blocked passages (which can be repaired by flushing out the engine and cooling system and installing new antifreeze).

Sep 18, 2010 | 1995 Mercury Villager

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Im a female unfamiliar with car repairs. Please help me understand where the thermostat is located in my daughters 1991 toyota tercel.


REMOVAL & INSTALLATION The thermostat's purpose is to control the flow into the engine from the radiator. During warm up, the thermostat remains closed so that the coolant within the engine heats quickly and aids the warming up process. As the coolant temperature increases, the thermostat gradually opens, allowing a supply of lower temperature coolant (from the radiator) to enter the water pump and circulate through the engine. NOTE: A thermostat should never be removed as a countermeasure to overheating problems. This will only decrease the cooling system efficiency and add to the problem. The vehicle cooling system should be serviced with necessary components replaced.
  1. Drain the cooling system and save the coolant for reuse.
  2. Remove the water inlet housing (disconnect any electrical connections on the housing) and remove the thermostat. Carefully observe the positioning of the thermostat within the housing before removal.
  3. Install the new thermostat in the housing, making sure it is in correctly. It is possible to install it backwards. Additionally, make certain that the air bleed valve aligns with the protrusion on the water inlet housing. Failure to observe this placement can result in poor air bleeding and possible overheating.
  4. Install the water inlet housing cover with a new gasket. Install the two hold-down bolts and torque to 43 inch lbs. (4.9 Nm). Do not overtighten these bolts!
  5. Refill the cooling system with coolant.
  6. Start the engine. During the warm up period, observe the temperature gauge for normal behavior. Also during this period, check the water inlet housing area for any sign of leakage. Remember to check for leaks under both cold and hot conditions. Fig. 1: Always observe the positioning of the thermostat in the housing before removing it 85993075.jpg
    Fig. 2: The thermostat should be installed with the jiggle valve upwards 85993076.gif
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Aug 11, 2010 | 1991 Toyota Tercel

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850 1997 turbo volvo engine keeps overheating


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Sep 09, 2009 | 1997 Volvo 850

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I cannot find the thermostat on my 1992 Prism. All information has led me to believe I nee to remove the small rubber hose leading from the raiator to the engine. I have disconnected the two bolts and tube...


Thermostat printpage_icon.gif


REMOVAL & INSTALLATION

All Models
See Figures 1 and 2
The thermostat and its built-in by-pass valve is installed on the inlet side of the water pump. Its purpose is to prevent overheating of the coolant by controlling the flow into the engine from the radiator. During warm up, the thermostat remains closed so that the coolant within the engine heats quickly and aids the warming up process.
As the coolant temperature increases, the thermostat gradually opens, allowing a supply of lower temperature coolant (from the radiator) to enter the water pump and circulate through the engine.

WARNING A thermostat with an internal by-pass should never be removed as a countermeasure to overheating. Removing the thermostat actually makes the problem worse because more coolant bypasses the radiator, thereby reducing cooling even more.
  1. Drain the cooling system and save the coolant for reuse.


CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
  1. Remove the water inlet housing and remove the thermostat. Carefully observe the positioning of the thermostat within the housing.



0900c15280047d7b.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 1: Thermostat assembly. Prizm shown, Nova similar
  1. Install the new thermostat in the housing, making sure it is in correctly. It is possible to install it backwards. Additionally, make certain that the air bleed valve aligns with the protrusion on the water inlet housing. Failure to observe this placement can result in poor air bleeding and possible overheating.



0900c15280047d7c.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Fig. 2: Correct placement of the air bleed valve during thermostat replacement
  1. Install the water inlet housing cover with a new gasket. Install the 2 hold down bolts and tighten them to 20 ft. lbs. Do not overtighten these bolts!
  2. Refill the cooling system with coolant.
  3. Start the engine. During the warm up period, observe the temperature gauge for normal behavior. Also during this period, check the water inlet housing area for any sign of leakage. Remember to check for leaks under both cold and hot conditions.

Aug 29, 2009 | 1992 Geo Prizm

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