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LT1 won't start

Tiny
ADAM_WORLEY06
  • MEMBER
  • 1994 PONTIAC FIREBIRD
  • 95,000 MILES
I have a 94 firebird lt1. It has been sitting for about 5 months due to the optispark went bad. I have now replaced it and put everything back together and it won't start. It will crank and I can hear a popping noise come out of the tail pipe but it won't turn over. I don't have cats, which may have something to do with the popping noise. Any ideas?
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Friday, February 17th, 2012 AT 7:21 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your compression you may have thrown a rocker or have a stuck valve. Then check your fuel pressure and make sure you are getting a good spark at plugs.
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Friday, February 17th, 2012 AT 8:04 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You might want to double check the firing order too.
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Friday, February 17th, 2012 AT 8:37 PM

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