Question about 1999 Chevrolet Cavalier

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Buggyslt car over heating after head ,thermestat,radiator, fan dosen't work right.if i hook fan direct fan works good but still over heats.

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Ronnie Houston

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Maybe the head wasnt torqued right and is allowing the car to overheat

Posted on Aug 18, 2008


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1998 Cadillac Seville SLS with overheating problem. Head gaskets repaired!! cost me 4K, all hoses checked and look good, belts replaced etc etc. Still overheats!! The cooling system (heating/AC) is acting...

did you change your thermostats there is one on the motor and on radiator. i have a toyota and was told my motor was shot it was overheating and loosing coolant my prob was water pump and the radiator filler pipe had a pin hole in it. if you do not have water in your oil or oil in the rad then it is probabnly not the head . also if the fin on your radiator are bent you may need too change radiator..Also your radiator fan may not be working, you can hook direct or buy a new fan relay sensor that plugs in at the bottom of raiator, you can check this by getting motor hot and see if fan kicks on

Jul 23, 2011 | 1998 Cadillac DeVille

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Replced pump,thermestat,fan clutch.still overheats when driving

That only leaves 4 possibilites. One radiator cap is worn out, Two hoses collapsing when vehicle heats up, Three water pump has gone bad. Four a blown head gasket.

Most people never replace a rad cap until it actually becomes a problem but its the cheapest of the options. Hoses are easy enough to figure out. Let the vehicle heat up and see if they squeeze shut. Wtaer pump can be easy if you can actually see into your radiator. If you can verify movement of fluid. If its not moving the pump isn't working. There are only 2 ways to verify a head gasket issue. One is steam coming from the exhaust the other is a chemical test you do with the coolant of the vehicle.

Mar 08, 2011 | 1999 Ford Expedition

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Tempature is getting hot replaced thermestat

air pockets possibly or your fan is not kicking on. look for a bleeder valve for the coolant and bleed the system when its running, or leave the radiator cap off and let it run for a while then top off system.

Jul 14, 2010 | 1998 GMC Jimmy

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I have a 2003 f-150 with a 5.4 that the heat is not working on.i replaced the thermestat and it is heating now sometimes and will occasionally burp threw the burp cap.i sure hop its not a head gasket,i...


Feb 15, 2010 | 2003 Ford F150 Regular Cab

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96 jetta 2.0l still overheating

so u pretty much replaced everything there is that could be the problem,fans turn on right??pump is working right??thermo is new right??ok so during the process of changing every thing you could have trapped air pockets in the cooling system ive seen this numerous times you can start there its the cheapest start,1st remove the radiator cap,2nd turn heater on high setting and temp to heat max, 3rd start ur car let the system cycle thermo has to open and close at least 2x's water is going to overflow to the ground its ok just dont lketr it empty youll see bubbles like air comming out let it run like 15min like this,turn the car off let it cool then place the cap back on make sure the seal is ok on radiator cao too!!hopefully thats all u need if not u may need a head gasket repaired they sell a green liquid at kragen oriely for blown head gaskets its like 25.00 it works pretty good for about 6000 miles to 10,000 miles MAKE SURE IF U USE IT FOLLOW ALL DIRECTIONS!! GOOD LUCK

Nov 24, 2009 | 1996 Volkswagen Jetta

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Fill over flow bottle right to the top and run for bubbles.
If you see bubbles you may have a bad head gasket or a possibly a cracked head.

This allows combustion gases into the cooling system and the system just can't dump that amount of added heat.

Aug 19, 2009 | 1999 Chevrolet Malibu

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Over heating

Sounds like a bad water pump. If there's no white smoke coming from the exhaust (head gasket) and the radiator and thermostat are good, either the belts are slipping or the waterpump is on it's way out.

Jul 26, 2009 | Toyota Previa Cars & Trucks

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did you bleed air out coolant. if you did check engine oil when engine cool .could have a blown head gasket. if it look like milk shake . head gasket leak . reason blow no heat check see heater blower motor working.if yes . heat control unit or heat door not open in dash vacuum line to heat door actutator could be leaking.

Mar 23, 2009 | 1999 Pontiac Grand Am GT

1 Answer

1999 Malibu Overheating

i would take the radiator to a radiator shop and have it flow tested sometimes they are hard to bleed the air out i usually hook my coolant pressure tester up and push the air out

Sep 20, 2008 | 1999 Chevrolet Malibu

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