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99 Montana oil consumption

Tiny
J.STIEG
  • MEMBER
  • 1999 PONTIAC MONTANA
  • 150,000 MILES
Having a few problems with a 99 montana 3.4, oil seems to be getting through the motor and coming out the tail pipe. Would that be the lower intake gasget?
also I get code p0101 and cly #5 misfire code, engine also stalls. Do I need to replace MAF?
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Wednesday, July 20th, 2011 AT 4:36 AM

6 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine oil coming out of the exhaust-check engine compression-could be blown headgasket, cracked head or block and an intake leak-
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Wednesday, July 20th, 2011 AT 5:23 AM
Tiny
J.STIEG
  • MEMBER
  • 352 POSTS
Ok, next time I get a hold of the vehicle I will check compression.

What about the MAF sensor, I get code p0101.
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Thursday, July 21st, 2011 AT 1:38 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Worry about the oil coming out the tail pipe-start there
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Thursday, July 21st, 2011 AT 5:56 AM
Tiny
J.STIEG
  • MEMBER
  • 352 POSTS
I found that the lower intake was bad. Can you get me torque specs for rockers arm bolts, its a 3.4l. Thanks
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Tuesday, July 26th, 2011 AT 4:44 PM
Tiny
J.STIEG
  • MEMBER
  • 352 POSTS
Also need lower intake manifold torque sequence and and how many ft lbs. Thanks.
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Tuesday, July 26th, 2011 AT 6:18 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Tighten the bolts to 62 inch-pounds first. The vertical lower intake bolts are then torqued to 115 inch-pounds, while the others are torqued to 18 foot-pounds. The bolts are also recommended to be replaced.
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Saturday, August 13th, 2011 AT 11:36 PM

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