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Steam from tailpipe

Tiny
PITT2500
  • MEMBER
  • 1998 MAZDA 626
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 138,000 MILES
Steam coming from tailpipe, all cylinders are dry, intake gasket maybe?
Wednesday, November 24th, 2010 AT 12:46 AM

6 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Is it overheating?
Are you losing any coolant
check headgasket
is it running rough
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Wednesday, November 24th, 2010 AT 12:52 AM
Tiny
PITT2500
  • MEMBER
  • 9 POSTS
Not running rough, coolant is low, but cylinders are dry, just steam out of tailpipe
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Wednesday, November 24th, 2010 AT 1:26 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The cylinders will always be dry after running the engine. Pressure test the cooling system to see if it hold pressure. It could be an intake gasket on a V6 but could also be a blown head gasket, especially if it has any overheating history.
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Wednesday, November 24th, 2010 AT 1:34 AM
Tiny
PITT2500
  • MEMBER
  • 9 POSTS
The owner said it never overheated before, just the steam.
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Wednesday, November 24th, 2010 AT 1:45 AM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Low coolant and steam out the back, never overheated on them?

Manifold is common but if its been overheating you have to consider headgasket
have to do your checks before you go and replace the manifolds and then to find out, have to be removed again to do the headgasket
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Wednesday, November 24th, 2010 AT 2:26 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
There may be no way to know for sure without pulling the manifold and examining the intake gasket. The bad spot would be visible on the gasket.
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Wednesday, November 24th, 2010 AT 2:34 AM

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