1990 Pontiac Firebird over heating problem

1990 PONTIAC FIREBIRD
186,000 MILES • V8 • 2WD • AUTOMATIC
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JUSTIN25
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  • 1 POST
i just got my car out of the shop and had the cylinder heads exchanged, and a brand new intake manifold, and a new water pump with raidator and thremostat. what else could be causing my car to over heat[img:8ed07e5f0f]http://www.2carpros.com/forum/automotive_pictures/242400_DSCF2557_1.jpg[/img:8ed07e5f0f]
Sep 14, 2008 at 9:18 PM
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RASMATAZ
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  • 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: ,Pressure test the Rad. cap,Clogged radiator,air lock in the cooling system ,Fan clutch,Radiator electrical fan,collaspe hoses,water pump
Sep 15, 2008 at 4:58 AM
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