1992 INFINITI Q45 MY CAR SHAKES IN PARK AND WHEN I BRAKE.

  • Tiny
  • biancadiazleo
  • 1992 Infiniti Q45

Engine Performance problem
1992 Infiniti Q45 V8 Two Wheel Drive Automatic 222882 miles

My car shakes in park and when I press the brakes down at a complete stop. My check engine light goes on and off and I just got new spark plugs and fixed my injectors in the car replaced 4 injectors. Car is still running rough and check engine light still comes on but goes off sometimes too.

Monday, July 12th, 2010 AT 10:14 AM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,785 posts

Hi there,

Thank you for the donation,

You may have a defective brake booster that is leaking engine vacuum when applied, ( the booster uses engine vacuum to operate) I would have this checked first.

Mark (mhpautos)

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Monday, July 12th, 2010 AT 8:19 PM

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