Hesitates when warm - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-27-2006, 01:52 PM   #11
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Quote:
Originally Posted by BillBoost37
Quote:
Originally Posted by jr's3800
Replace the Bosch plugs, with either NGK, Ac Delco or Autolites... And then get back to us
Psst..Don.. the plugs are AC.. wires are Bosch..
Ha ha... My Bad...

Ok...A little stumpped then

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Old 12-27-2006, 02:01 PM   #12
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I have/had the same intermitten issue on my 99. It comes and goes. It'* been a while since it resurfaced. What seemed to help my issue was cleaning the throttle body. I've done it four times in the past 100K miles and it'* really helped.

Otherwise, I'm in the same boat as you...plugs are new, wires new, etc., etc... I've learned to accelerate a little bit harder to get it past that lul point you speak of.
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Old 12-27-2006, 02:17 PM   #13
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Try pinching, plugging, or blocking off the vacuum line to the purge solenoid valve at the canister. A vacuum leak in the purge system could possibly account for the hesitation. Won't cost anything to check it out.
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Old 12-27-2006, 04:21 PM   #14
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Quote:
Originally Posted by bill buttermore
Try pinching, plugging, or blocking off the vacuum line to the purge solenoid valve at the canister. A vacuum leak in the purge system could possibly account for the hesitation. Won't cost anything to check it out.
X2. This was my first thought.
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Old 12-27-2006, 07:30 PM   #15
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I'll plug the vacuum line first thing in the morning.

Thx.
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