Stuttering, lack of power problem... - Page 4 - 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 10-23-2006, 04:06 PM   #31
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Darn... I love that fix myself.

When looking at vacuum lines, please remember there are a couple connections that frequently are under the airbox and not easy to find with it in the car.
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Old 10-23-2006, 04:10 PM   #32
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Quote:
Originally Posted by BillBoost37
Darn... I love that fix myself.

When looking at vacuum lines, please remember there are a couple connections that frequently are under the airbox and not easy to find with it in the car.
No worries about the airbox...
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Old 10-23-2006, 04:12 PM   #33
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Ok then..let'* pull the engine cover off and jump into the vacuum lines.
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Old 10-23-2006, 05:26 PM   #34
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Alright, got in there and checked em out. The top line going into the throttle body doesnt want to stay all the way onto the outlet pipe.

I jimmy-rigged it with a zip-tie, but that only brought it about half way to the throttle body. And it looks like it may be putting some strain on the fitting.

Here'* a lil clip of how it doesnt wanna stay on...
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Old 10-24-2006, 04:08 PM   #35
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Would a new set of lines be in order or how could I fix this???
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Old 10-24-2006, 04:37 PM   #36
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I was able to get just the rubber elbow connector. IIRC, it was at AutoZone or Advance. They get old and hard with age. Any other connector problems?

I know that when I replaced mine, I did all the rubber connectors at the same time, including the "T" at the throttle body. That I had to get at the dealer, but for the straight connectors, I just got a foot each of 7/32" and 9/32" rubber vacuum line and cut the lengths I needed from them. Total cost about $3 and no vacuum problems since.

Don't forget to check the connectors and lines on your cannister and purge valve.
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Old 10-31-2006, 01:39 PM   #37
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Changed most of the vacuum fittings, have the lower "T" fitting that goes into the throttle body on the way (cracked it putting on a hose clamp, oops). It seems now that the check engine light comes on when it'* cold and I use my AstroStart. It also seems to miss a little bit at idle, hovering around 800RPM. If I just hop in and start it, it seems to run fine, except my Traction Off light being on until it warms up.
GM quick lube also said that i need a new serpentine belt(I'll check that for myself), tranny service because of a leak, and they found a light intake leak...
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Old 11-08-2006, 10:09 PM   #38
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Got the lower vacuum throttle body T on, and the old one has a good crack in the bottom, guess I missed that the first time... Seems to run better. Would a vacuum leak hurt mileage???
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Old 11-09-2006, 08:56 AM   #39
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Yes, it'* additional air so the pcm must add fuel.
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Old 11-09-2006, 09:20 AM   #40
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So does the car run better..would you say your problem is gone?
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