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3800 V6

Tiny
DVFD
  • MEMBER
  • 2002 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 87,000 MILES
I had my intake gaskets redone to prevent any leaking. A few months after I got it back the rods started knocking. I took it to anouther repair shop. And was told the upper gasket was leaking. I call the shop that did the work on the intake and was told they only replaced the bottom gasket not the top one. Can you replace the bottom gasket with out damanging the top one? This is on a 2002 grand prix 3800 v 6.
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Sunday, January 30th, 2011 AT 3:22 AM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
If you change the lower gasket, you have to remove the upper first but the upper doesn't seal any coolant from the crankcase so I don't see how it could cause the problem. Those upper intakes leak a lot and they leak into the combustion chamber, not the crankcase.
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Sunday, January 30th, 2011 AT 3:36 AM
Tiny
MAYNARDMAN
  • MEMBER
  • 9 POSTS
If they replaced the lower maniflod gasket they had to replace the upper too.I just did these on my sons 3.8 Bonneville. If you have antifreeze in the oil and a rod bearing failure I would take it back to the shop and push the issue. They obviously didnt do it properly
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Monday, March 14th, 2011 AT 4:34 PM

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