Question about Chevrolet Cavalier

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I have a 97 cavalier with a 2.2L. It is over heating and the low coolant light will not go out. I have replaced the thermostat, radiator, radiator cap, serpentine belt, water pump, and transmission cooling lines to the radiator. But it is still over heating. I noticed that the upper hose is warm/hot to the touch, but the lower hose is still cool. I took out the thermostat and tested it in boiling water and it opens up. I drove my car without the thermostat and it doesn't over heat. I cannot go with out heat though. Any thoughts?

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The low coolant light is a sensor on the side of the radiator with a wire plug to it you can disconnect it and the light will go out and youll be back to having to check the coolant level,as for overheating, tack the thermostat back and replace with another one, it will open in boiling water but is it open all the way and at what temperature, can effect your cooling did it have red dexcool in it before, might need to flush out the cooling system,this coolant will clog everything up and go back to the green coolant I dont know whos brainstorm it was for dexcool.......that stuff is no good

Posted on Oct 04, 2010

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Are you sure you burped the system of all air? Air in the system can stop the thermostat from opening and cause it to overheat.

Posted on Oct 04, 2010

  • chad_iwu Oct 04, 2010

    I don't think it has any air in the system, but not sure how to check to make sure. How do you get the air out if it does?


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97 cavalier trouble shooting cooling systems

Are you saying the engine is cold but the gauge on the dash is saying the coolant is very hot ?
If the engine is cold, the problem could be the gauge or the sending unit.
If the engine is getting hot, the problem could be the radiator is low on coolant or has air in the system, or the water pump is not working.

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2003 chevy cavalier with no heat and temperature doesn't rise past 40 degrees engine code P0128 comes up when checked and the thermostat and radiator have been replaced still isn't fixed what do i do?

A code P0128 may mean that one or more of the following has happened:
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Feb 27, 2011 | 2003 Chevrolet Cavalier

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Were is the thermostat located on a 97 cavalier with a 2.4

Follow the top radiator hose to where it connects to the engine, there should be a metal removable housing there with the thermostat inside. Be sure to replace the gasket after installing a new thermostat and also be sure the thermostat is placed in the correct direction for coolant flow.

Feb 16, 2011 | 1997 Chevrolet Cavalier

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My 98 cavalier heat is not working it blows cold air

the simplest fix is to check your coolant level, if the radiator is low enough your heat wont come on. when the car is warmed up, switch the engine off and check the level in the over flow bottle (located on the passager side) first squeeze the upper radiator hose with a shop towel to check for back pressure. if theres too much pressure wait for the engine to cool down longer. using the towel again remove the overflow cap, the bottle is pressurized so do so slowly to allow any stem to escape without burning you. if the coolant bottle is low, topoff with DEXCOOL (GM approved coolant)
once bottle is at the 'full hot' line replace cap and start car back up and switch heat on high/defrost. odds are decent this will fix the issue,
and it will only cost you a bottle of antifreeze :)

Feb 08, 2011 | 1998 Chevrolet Cavalier

2 Answers

I have a 98 cavalier and it keeps over heating any pointers

First, look for leaks and make certain your radiator and overflow are full-do you have heat? If not, you may have a closed thermostat. If you have antifreeze in your oil, or notice smoke coming out of your tailpipe when the car is fully warmed up, you may have a blown head gasket.

Dec 23, 2010 | 1998 Chevrolet Cavalier

1 Answer

Replace thermostat on 97 cavalier?

GM Cavalier/Sunfire 1995-2000 Repair Guide


2.2L Engine
(see Figures 1, 2, 3, 4, 5 and 6)

0900c1528003cd07.jpg Fig. 1: The thermostat is located in the lower radiator hose on the 2.2L engine

0900c1528003cd08.jpg Fig. 2: Remove the two retaining bolts for on the housing

0900c1528003cd09.jpg Fig. 3: Separate the housing halves to access the thermostat

0900c1528003cd0a.jpg Fig. 4: Pull the thermostat out to remove it from the housing

0900c1528003cd0b.jpg Fig. 5: The thermostat has an O-ring which goes around the center

0900c1528003cd0c.jpg Fig. 6: Thoroughly clean the mating surfaces of the thermostat housing
When adding coolant, it is important that you use GM Goodwrench DEX-COOL® (orange colored, silicate free) coolant meeting GM specifications. On these vehicles, if silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner; at 30,000 miles or 24 months.
  1. Disconnect the negative battery cable.
  2. Properly drain and recover the coolant until the level is below the thermostat.
  3. Unfasten the coolant outlet-to-inlet manifold attaching bolt and nut, then remove the outlet.
  4. Remove the thermostat. Clean the inlet manifold and outlet mating surfaces.

To install:
  1. Install a new O-ring onto the thermostat
  2. Place the thermostat in the inlet manifold.
  3. Attach the coolant outlet to the inlet manifold, using the bolt and nut. Tighten to 89 inch lbs. (10 Nm).
  4. Refill the engine cooling system.
  5. Connect the negative battery cable, then start the engine and check for coolant leaks.

Hope this helped (remember comment and rated this).

Apr 05, 2010 | 1997 Chevrolet Cavalier

1 Answer

Over heating

Would have to suggest water pump at this point if all else has failed.

Apr 25, 2009 | 1998 Chevrolet Cavalier

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