Help again please...... - 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 02-17-2003, 11:10 PM   #1
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Default Help again please......

You guys were a great help last week (or two weeks ago?) with my Bonneville problems.

Now I have a question that I hope won't offend any of you Bonne lovers....
Our other car is an 87 Buick LeSabre which has the same engine (3.8 l) as our Bonneville. It has an erratic idle in park or neutral and chugs under load but cleans up over 2000 rpm. We checked idle air control valve. We are wondering if there is any way to adjust or check the TPS control or does it have to go to the dealership? The car has 330,000 km on it.

Any help would be greatly appreciated!
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Old 02-17-2003, 11:12 PM   #2
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Later years were a snap. Bad news. The best way to do it for an 87 is with a Scan tool. The good news is that it won't take long. Do you know someone with a tool? We can walk you through it if you can get your hands on one.
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Old 02-18-2003, 12:54 AM   #3
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Default Re: Help again please......

Quote:
Originally Posted by Heath
You guys were a great help last week (or two weeks ago?) with my Bonneville problems.

Now I have a question that I hope won't offend any of you Bonne lovers....
Our other car is an 87 Buick LeSabre which has the same engine (3.8 l) as our Bonneville. It has an erratic idle in park or neutral and chugs under load but cleans up over 2000 rpm. We checked idle air control valve. We are wondering if there is any way to adjust or check the TPS control or does it have to go to the dealership? The car has 330,000 km on it.

Any help would be greatly appreciated!
My 87 LeSabre LTD had the same problem! Turned out to be a mis-aligned TPS!
BTW: Where in Alberta do you live Heath??????
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Old 02-18-2003, 12:56 AM   #4
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Quote:
Originally Posted by willwren
Later years were a snap. Bad news. The best way to do it for an 87 is with a Scan tool. The good news is that it won't take long. Do you know someone with a tool? We can walk you through it if you can get your hands on one.
Don't need a scan tool for a 87! Try this: http://www.friedpoodle.com/ba/forum/...675318b77b2fcd
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Old 02-18-2003, 10:39 PM   #5
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And where might one find a scan tool?

BTW DeathRat,we are in Red Deer!

Thanks again!
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Old 02-18-2003, 11:12 PM   #6
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Short of buying one, it'* sometimes possible to rent one from a toll rental business. I'd suggest actually buying one. You should be able to get a descent one to do what you need for under $200. It'll pay for itself very quickly. DON'T buy a simple code scanner. You need a Scan Tool. Big difference.
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Old 02-19-2003, 01:03 PM   #7
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Heath,

If you read Deathrat'* post, he gives instructions on how to pull codes from your 87 LeSabre without buying a scan tool. All you need is a paperclip. You can also find the proceedure in the Techinfo section of both Bonnevilleclub and BonnevilleAttitude. It is one of the perks of owning a pre-1994 GM H body.

Good luck pulling the codes. As soon as you pull them, post them here so that we can help you.
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Old 02-19-2003, 09:18 PM   #8
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Quote:
Originally Posted by Heath
And where might one find a scan tool?

BTW DeathRat,we are in Red Deer!

Thanks again!
Next time you're in Edmonton give me a call then! email me & I'll give you my phone number if you wish!
As for a REAL Scan Tool!
http://www.autotap.com/
or
http://www.obdii.com/
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