Mechanics

CAN A CRACKED INTAKE MANIFOLD CAUSE OVERHEATING?

1998 Honda Passport • 170,000 miles

Yes I have been trying to find out why my car overheats. I have replaced all cooling componets and I have no water in my oil or smoke out the exhaust. Took it to a mechanic and he recommended changing the motor but never broke it down to diagnose the problem and when I got the car back I noticed coolant on top of the intake manifold. Could this be my problem or is it probably a cracked head or blown head gasket?
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Sonny.1981
March 8, 2012.



A leak down test for the cylinders will tell if you have internal engine issues. A pressure test will tell you where the leak is coming from.
Make sure the radiator is not clogged.

Roy

I did the radiator cap pressure test and the pressure slowly dropped just a little bit but could I be losing pressure on the intake? Its the only place I see coolant. Near where the thermostat is but not coming from the thermostat itself. But would that be the cause of the overheating or is it more likely a head gasket?

Tiny
Sonny.1981
Mar 8, 2012.