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My engine cuts out sometimes

Tiny
STOGDOG
  • MEMBER
  • 1989 CHEVROLET TRUCK
  • 70,000 MILES
My 1989 chevy 1500 4x4 350 TBI is sputtery, and cuts out sometimes. Sounds like it has a miss if standing at backside of truck by exhaust. Has new fuel filter, plugs, cap and rotor, thinking maybe be the fuel pressure regulator or possibly the TBI itself. It has a newer 350 TBI Crate motor in it, and it's got a new fuel filter, plugs, cap and rotor, not sure where to go next.
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Tuesday, May 15th, 2012 AT 6:52 PM

5 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
CEL on?
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Tuesday, May 15th, 2012 AT 7:01 PM
Tiny
STOGDOG
  • MEMBER
  • 5 POSTS
No, it is not.
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Wednesday, May 16th, 2012 AT 6:23 AM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Check MAP or MAF sensor whichever you have. Map has vacuum while maf has heated 'wire' that gets dirty.
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Wednesday, May 16th, 2012 AT 7:27 AM
Tiny
STOGDOG
  • MEMBER
  • 5 POSTS
I am not 100% sure on which of those I have. Any easy way to distinguish the two?
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Wednesday, May 16th, 2012 AT 4:37 PM
Tiny
CHEVYFORLIFE
  • MECHANIC
  • 33 POSTS
You dont have a MAF only a MAP. You could try a ignition control module.
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Saturday, May 19th, 2012 AT 2:36 PM

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