1993 Pontiac Grand Am

Tiny
FRANK1965
  • MEMBER
  • 1993 PONTIAC GRAND AM
Engine Mechanical problem
1993 Pontiac Grand Am 4 cyl Front Wheel Drive Automatic

replaced cylinder head and retimed the engine and engine lopes. In that year do the balance cam have a marking to set when I time the engine?
Thursday, August 19th, 2010 AT 10:41 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The timing is adjusted by the computer. The problem sounds like a bad idle air control valve (IAC) or a throttle position sensor (TPS). Has the check engine light come on?
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Thursday, August 19th, 2010 AT 9:17 PM

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