1991 Buick Skylark hose routing

TAMSCAR

MEMBER
1991 BUICK SKYLARK
6 CYL
FWD
AUTOMATIC
140,000 MILES

I put in a new water pump and thermostat but motor still gets very hot very fast. I would like to find a hose routing diagram from radiator to motor then through the heater core to see if I crossed any hoses, or maybe there's another reason for the extremely hot engine. I also did a flush to the system. Everything is clean now. Any help would be appreciated.

Thursday, September 4th, 2008 AT 3:07 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Could be air lock in the cooling system try bleeding it-don't work-Do below

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

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Thursday, September 4th, 2008 AT 3:21 PM