Question about 2002 Chevrolet Cavalier Coupe

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Over Heating Had a leak in the radiator, Fixed that! Fan Motor was out, fixed that! Now, Still overheating, resevoir goes empty, keep refilling it and check engine light comes on and temperature gauge goes from mid-line to all the way red, then to bottoming out, also when the car starts to overheat it affects the a/c, it starts to blow warm air?

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  • Heidi4 Aug 16, 2008

    Same problem, losing water but can't find leak. Runs hot if AC is on and driving over 55 miles per hour. Radiator good, electric fan works. Hoses are good.

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Check and see if your water pump is working, any water leaks under the pump?????

Posted on Aug 23, 2008

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1 Answer

Causes overheating


I HAD the same problem, fixed it. From my experience this is what you're going to do:

1. At cold start, see if the condenser fan or the radiator fan turns on right away. If yes, replace the Fan Control Module ($100 original). A/C and motor fan should only come on when temp is "normal", meaning the needle in the temperature gauge sits in the middle.

2. If the radiator fan does not come on when temp level needle reaches the middle of the gauge, your motor is dead and that's why you overheat pretty quickly. Replace radiator motor ($70 replacement). Or you can check if the motor is working by directly powering it from the battery. Use small cable jumper ($2 at Walmart)

3. Replace thermostat ($14 with thermostat gasket)
4. Drain existing coolant and put in new one.

Most of the time its the radiator fan that goes out pretty quickly due to faulty fan control module (that little black box that attaches to the fan assembly hood on the driver's side near the battery). I did all the repairs and saved a ton of labor cost. Its easy, just search it on youtube and they will show you how to do it. The solution I gave is what fixes mine.

Good Luck!

Sep 16, 2013 | 2003 Mitsubishi Lancer

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My 93 gmc safarie had a coolant leak, we replaced the radiator, thermostat and the radiator cap. flushed the resevoir and refilled. it still overheated. at the back rt side of engine at the rt manifold at...


you may had overheated you head gasket check your oil, to see if there is any oil in there also check your water pump if not check your water lines one by one to see where is the leak coming from

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1 Answer

Keeps overheating


Hello,

if your car keeps over heating, then it means the fan blowing the radiator is weak or might not be working at all.

Also, your water pump might be damaged, which can cause it to leak water. Put water into the radiator and check under the car to observe if there would be any leak of water.

Make sure the above is checked and fixed because thing overheating problem can damage your gasket which can make your can engine to knock.

Water as to be leaking from somewhere which is making the car overhear frequently.

Good luck.

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My 1997 Dodge Intrepid overheats. I've replaced the thermostat, and it continues to overheat. I noticed adjacent to one of the radiator hoses, a ribbed hose that is split. Could this cause the car to...


Now that you've eliminated the thermostat, it could be a number of other things. Don't drive the car too far until you've fixed the overheating problem - overheating can destroy an engine.

That split ribbed hose you see is plastic wire loom - it carries and protects electrical wires, and is not the cause of overheating.

1. Low coolant level
2. Radiator hose split/cracked, causing low coolant level.
3. Head Gasket - leaking, causing low coolant level
4. Thermostat - stuck closed (you eliminated this possibility)
5. Radiator cap - worn/damaged
6. Radiator fins - obstructed by debris/cardboard
7. Water Pump belt - missing/broken
8. Heater Core - leaking, causing low coolant level
9. Intake Manifold Gasket - leaking, worn, damaged
10. Radiator Fan Relay - faulty
11. Radiator Fan Blade - broken, missing
12. Radiator Fan Sensor/Switch - faulty
13. Water Pump - leaking, causing low coolant level
14. Radiator Fan Motor - faulty

My primary suspects would be Rad Fan Relay (#10), and
Rad Fan Switch (#12).

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Car overheating, coolant in resevoir cold,


First-change the thermostat and bleed the system.If the problem is still there change the water pump.

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my kia carnival 2002 keeps less heating when the car is in slow speed & when it is fast at 100 KM/H the RPM comes down, there is gear oil at Max & engine oil at max and water is getting low. with this i replaced thermostat, have had radiator pressure tested and was fine, radiator water is full but coolant box is getting empty whilst driving the distance of 100 kms. also when it begins to little overheat or just taking off the speed there is a loud ascending rattling noise which seems to come from the under right side of engine But when it catches the speed everything is smooth. & then you park for an hour the coolant tank is empty.or at low. please tell me what to do.

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Over heating and radiator leaks. overheats after sitting at idle for around ten minutes. its a 5 speed manual transmission 2000 chevy 2 dr cavalier.


if there is a leak then of course you will get overheating from the engine..Be very careful as this can cause permanent damage to the head gasket and it will cost a lot more to fix..First try to stop this leak before you proceed further.

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Overheating


If the car is overheating and no A/C cold air output. Im sure the radiator fan is faulty. very common problem for overheating condition. If the car is over heating and the radiator fan is not on replace the radiator fan high and low speed it will fix your A/C problemn too. Hope this helps please rate if it does.

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1 Answer

Cooling system


1)yes steam will come out of the resevoir,especially with a bad rad'cap.
2)thermostats are cheap.
does your cooling fan come on?,it may be a bad sensor or relay (for fan)
3)no heat in car!?,the water pump may be bad.or the heater core is plugged,or if you have:a bad coolant valve for cab heat.(but this wont cause motor-over heating issues!)
4)you have a plugged radiator!

--sounds like a bad waterpump to me.
even if it doesnt leak,the impellers still come loose from the shaft!!

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