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1979 Chevy Truck

Tiny
JONNYPETERS
  • MEMBER
  • 1979 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
The engine is a 350 v8 out of a 79 chevy truck.
Swapped in to a 1985 s10.

When you apply pressure to the accelerator there is a hesitation, then jerks and then accelerates. I have replaced the spark plugs, plug wires, distributor cap, rotor button and fuel filter and installed a curve kit.
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Friday, February 19th, 2010 AT 7:45 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if the choke plate is fully opening, the accelerator pump if its squirting fuel and ignition timing
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Friday, February 19th, 2010 AT 8:04 PM
Tiny
JONNYPETERS
  • MEMBER
  • 2 POSTS
Okay,

when I have the truck idle and I press on the peddle you can hear and feel the hesitation its at the first moment I step on a little. If I flore it it does this as well. But it I feather it a couple times then acclerate it does not slug down.

Timming is correct. Choke plate is opening. When I manualy acclerate the pick up with my hand you dont get the hesitation but on the peddle it does.
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Friday, February 19th, 2010 AT 10:28 PM

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