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Grand Am 03 engine shaking, red hot just past the resonator

Tiny
CHRISHOLWELL
  • MEMBER
  • 2003 PONTIAC GRAND AM
  • 147,000 MILES
Grand am 03 engine shaking, red hot just past the resonator, and when put in drive or reverse starts to choke out. And bad burning smell but think thats because exhaust is red hot. Replaced plugs checked cat and cleaned injecters
Saturday, December 31st, 2011 AT 3:58 PM

4 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
What color were old plugs? Are you getting spark to all cylinders? When did this problem start?
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Saturday, December 31st, 2011 AT 4:48 PM
Tiny
CHRISHOLWELL
  • MEMBER
  • 5 POSTS
Started yesterday, not sure if getting spark to all cyclinders old plugs were black on bottoms
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Saturday, December 31st, 2011 AT 5:17 PM
Tiny
CHRISHOLWELL
  • MEMBER
  • 5 POSTS
Get code p0300 from obd2
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Saturday, December 31st, 2011 AT 5:19 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Sounds like your running too rich. Check fuel pressure reg vac hose for gas if so it's bad. Check if MAF is dirty.
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+1
Sunday, January 1st, 2012 AT 5:56 AM

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