1990 Pontiac Firebird Repair Question
Topics covered: Pressure test, Gas, Radiator.
Mileage: No information provided.
Mileage: No information provided.
Asked on September 14, 2008
1990 Pontiac Firebird over heating problem
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
Asked by justin25Answer
Replied on September 15, 2008
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
