1992 Chevy Cavalier over heating

Tiny
CHADWICK CONANDOYLE
  • MEMBER
  • 1992 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 205,000 MILES
My car already over heated once, my brother and I just fixed and replaced everything that could possibly cause it to over heat. The weird part is that when the car is stopped, it starts to cool down a little. What else could be making my car do this?
Monday, July 14th, 2008 AT 4:39 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.

If the block and pressure test passes check the following: Thermostat, Pressure test the Rad. Cap, Clogged radiator, Fan clutch, Radiator electrical fan, collaspe hoses, water pump.
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Monday, July 14th, 2008 AT 5:07 PM
Tiny
BOBBYTECH1
  • MEMBER
  • 49 POSTS
Did u mean when the car is stopped at the lights it cools down? If it is true change the t/stat first then go from there
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Monday, July 14th, 2008 AT 6:22 PM

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