Shaking and wobbling while in idle and the service engine light is flashing

Tiny
TEE114
  • MEMBER
  • 2002 OLDSMOBILE BRAVADA
  • 4.2L
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 115,000 MILES
I have had my vehicle for four years. Several days ago went to leave and noticed the back end was looking low. When I was out shopping the service engine light came on the and the car began to shake and felt wobbly when in park and when idling. Felt like it was misfiring too. So I changed the spark plugs all six of them and the alternator. Went to start car but battery was dead. Jumped car but had it tested and the battery was dead so bought a new battery. Car is still continues to shake a wobble service engine light is still flashing.
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Friday, December 30th, 2016 AT 11:48 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,606 POSTS
Have it scanned for codes and check fuel pressure with a gauge auto parts rent it . sounds like amisfire. see link.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Friday, December 30th, 2016 AT 12:56 PM

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