Question about 1997 Chevrolet Cavalier

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97 cavalier convertible 2.4 twin cam engine..

Water pump failed, overheated, blew head gasket, head resurfaced, water pump, thermostat, battery, O2 sensor, time chain all replaced. Car will sometimes start but wants to quit, occasional backfire. When being driven gas pedal needs to be pushed down to keep it running or will quit then also. Using correct key but computer memory had been wiped out. Second new set of spark plugs replaced. I have had more than two good mechanics working on this car for more than 3.5 months and they can't find the problem and I am unable to get to work without renting or borrowing cars. Everyone is so frustrated! Four years ago my car would stop suddenly and no mechanics ould find the problem then either, turned out to be the recall relay in ignition switch and never had a problem until now. Could this relay have gotten damaged when car got so hot? Mechanic says no and who am I to question? Any help would be so greatly appreciated. This car has many new parts and 83,000 mi. Thanks, Diane

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  • diahofma8 Jun 01, 2009

    Thank you for responding so quickly! I will let the mechanic know but he doesn't always answer my calls so quickly anymore..Diane

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  • 51 Answers

It sounds to me like you have a vacuum leak or maybe a vacuum line connected in a wrong location. To find this if it's a leak, have a mechanic perform a vacuum test by blowing air through the intake. If there is a leak you will here air being forced out from the leaking location. Some shops also use smoke.

Hope this helps.

Posted on Jun 01, 2009

  • Rod Middleton Jun 01, 2009

    I'm sorry the correct term for the test you need to have performed is called a "pressure test"

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1 Answer

Overheating 97 Lincon Town car


Connie, Were the radiator,water pump and thermostat replaced to try and fix the over heat issue or as maintenance. Engine overheating can be caused by a lot of things, Leak in cooling system, air in system, bad rad. cap, slipping belt, faulty thermostat or installed upside down, faulty water pump, plugged radiator (inside/outside), collapsing rad hose, faulty cooling fan, leaking head gasket, sludge plugging engine water passages, poorly tuned engine, etc..
Take into a good shop for diagnoses and estimate for repair. Check the attached links,instruction and guides, Good luck
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My grand am still overheats even after i changed the termostat and water pump plus, the fan only runs when the temp sensor is unplugged


I had the same problem with my 1999 grand am .I changed water pump, thermostat. I heard the Pontiac engines , 3.4 had overheating problems one is the intake gasket if your losing water but don't know were its going its leaking at the intake gasket and burning off or if you check the oil cap or the dip stick and theres a milky substance on them it would be your head gasket I had to change my head gasket and while I was there I changed the intake gasket too. I haven't had any problems sence I changed them hope this helps. Jack

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1 Answer

2006 suzuki forenza keeps overheating have had the water pump replaced and the thermostat and gaskets.


Sounds like a leaking head gasket. The gasket may have been damaged when the engine ran hot the first time.
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How would i know if my overheating problem in my 97 Geo Metro Prizm is a radiator, water pump, blown head gasket, cracked head or a thermostat problem. is there some way i can check for this?


Oil and coolant mixed usually means the engine is damaged.
Blown head gasket, or cracked block - head.
You may have coolant in the engine oil too.
I would not drive it.

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97 CAVALIER (Z24) FAILED SMOG TEST


No the water pump will not affect the smog test. You probably failed the idle?
Usually with this age of vehicle you can replace the o2 (oxygen) sensor and it will pass. Cleaning the MAF if it has one cant hurt either if you do it right.

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1 Answer

Engine overheating-----1994 Olds Cutlass Supreme 3.4 liter v/6


There seems to be an air pocket or no antifreeze in engine block. Try this method disconnect upper radiator hose and pour water directly into hose down into engine block until it full. when its filled reconnect hose and fill up radiator. as the vehicle warms up open bleeder valve on the thermostat housing and release air from system. open slowly and BE VERY CAREFUL WATER WILL BE HOT, bleed until you get a steady stream opening and cosing valve. However if all of this don't work. You may have a bad pump. Good Luck

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1 Answer

Coolant bizarre behavior


if car doesn't run hot with no thermostat...you may be air-locking system when installing thermostat. I always fill the engine block up to the thermostat housing to make sure that engine is full of fluid ..then install thermostat...spring facing down..thenfill radiator making sure car is running so as not to air lock system ...run until top hose gets warm ,showing that your thermostat opened

Nov 23, 2008 | 1998 Chevrolet Cavalier

1 Answer

Overheating


Hi,
If the car is overheating it could be due to a thermostat which is stuck in the closed position, a failed water pump or just a slack belt driving it. I think there will be a "little" tube carrying coolant from the engine to the coolant expansion tank, and if you run the engine with the filler cap removed you should see water coming through that pipe IF the rump is running. A failed water pump will not necessarily leak, it just won't pump the water round the engine.

Always take care when dealing with a pressurised cooling system on an overheating engine - the water may well be above boiling point.

If you run the engine without coolant the cylinder head may well warp and repair bill will be huge.

Hope this helps you a bit. D

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