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Can a cracked intake manifold cause overheating?

Tiny
SONNY.1981
  • MEMBER
  • 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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Thursday, March 8th, 2012 AT 12:40 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
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
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Thursday, March 8th, 2012 AT 12:43 AM
Tiny
SONNY.1981
  • MEMBER
  • 7 POSTS
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?
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Thursday, March 8th, 2012 AT 3:16 AM

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