What can cause a small hesitation upon.

Tiny
ANONYMOUS
  • 2003 CHEVROLET TRAILBLAZER
  • 89,000 MILES

What can cause a small hesitation upon acceleration and engine dieseling after run when turning engine off

Friday, March 22nd, 2013 AT 6:54 PM

2 Replies

Tiny
RANDICO
  • MEMBER

Fuel entering the intake, this can be from fuel injector to fuel pressure regulator that leaks through its diaghram,
where a vacuum to the intake hooks up at.

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Friday, March 22nd, 2013 AT 7:17 PM
Tiny
HMAC300
  • EXPERT
  • 46,997 POSTS

Scan for codes and check fuelpressure first. This particular engine has a tendency for the throttle plate ot get sticky and casue problems clean it on both sides with choke cleaner as well as iac hole.

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Saturday, March 23rd, 2013 AT 3:08 PM

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