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.

whats wrong?

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Old 03-09-2008, 10:46 AM
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Default Re: whats wrong?

Originally Posted by velvetdreams21
Originally Posted by clm2112
Now...1.) Have you made any changes to the motor or it'* induction system? 2.) Do you have a scan tool available to you so you can see what the computer is seeing from the sensors?
No and No unfortunatly
Where are you located? Perhaps another member is near by and can help with scanning your engine.
Old 03-09-2008, 10:46 AM
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Originally Posted by Danthurs
Originally Posted by velvetdreams21
When I bought the car I was told it was given a complete tune up (was told after I paid and everything so I knew he wasnt saying it just to sweeten the deal), it was only bought about 2 weeks ago and has barely been driven at all, maybe a grand total of 50 miles
Never trust this. New(used) cars always get all new fluids, plugs, etc right after you get it. Or at the very least checked. Check each system here. Easy stuff first, then we move on. We'll go threw the ignition system first, it'* easy. Then fuel. Fuel filter is a possiblilty but that'* a pain to change. Have you checked for vac leaks? For this take carb cleaner and spray a little bit on the vac lines while the engines running. The idle will change if you spray on a leak.

I was thinking it could be the fuel filter too but I dont have a lot of experience with cars. ok now dumb question...where are vacuum lines?
Old 03-09-2008, 10:47 AM
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Default Re: whats wrong?

Originally Posted by Danthurs
Originally Posted by velvetdreams21
Originally Posted by clm2112
Now...1.) Have you made any changes to the motor or it'* induction system? 2.) Do you have a scan tool available to you so you can see what the computer is seeing from the sensors?
No and No unfortunatly
Where are you located? Perhaps another member is near by and can help with scanning your engine.
Mason City, Iowa
Old 03-09-2008, 10:48 AM
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Originally Posted by velvetdreams21
Originally Posted by Danthurs
Originally Posted by velvetdreams21
When I bought the car I was told it was given a complete tune up (was told after I paid and everything so I knew he wasnt saying it just to sweeten the deal), it was only bought about 2 weeks ago and has barely been driven at all, maybe a grand total of 50 miles
Never trust this. New(used) cars always get all new fluids, plugs, etc right after you get it. Or at the very least checked. Check each system here. Easy stuff first, then we move on. We'll go threw the ignition system first, it'* easy. Then fuel. Fuel filter is a possiblilty but that'* a pain to change. Have you checked for vac leaks? For this take carb cleaner and spray a little bit on the vac lines while the engines running. The idle will change if you spray on a leak.

I was thinking it could be the fuel filter too but I dont have a lot of experience with cars. ok now dumb question...where are vacuum lines?
Look at this picture, most of the red lines are vac lines.

Old 03-09-2008, 10:52 AM
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Default Re: whats wrong?

Originally Posted by velvetdreams21
No and No unfortunatly
Sorry, I was typing a response and missed your reply to a different post about just getting the car.

The advice given is a good place to start then... look for items disconnected under the hood (little wires hanging out in mid-air or hoses not connected to anything) Sometime during a "tune-up" stuff gets left disconnected (particularly vac fittings). If you have a digital camera, now would be a good time to snap a couple of pics and post them. Most of the folks on the forum know what looks stock and what has been modified..they can spot whether the motor has been hot-rodded by a previous owner.

Stumble on WOT acceleration is not a mechanical problem perse...all motors can do it, it'* usually fuel/air mixture or ignition related....hence all the suggestions to go look for leaks, bad sensors, and sparkplug related items.
Old 03-09-2008, 11:07 AM
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Originally Posted by Danthurs
Originally Posted by velvetdreams21
Originally Posted by Danthurs
Originally Posted by velvetdreams21
When I bought the car I was told it was given a complete tune up (was told after I paid and everything so I knew he wasnt saying it just to sweeten the deal), it was only bought about 2 weeks ago and has barely been driven at all, maybe a grand total of 50 miles
Never trust this. New(used) cars always get all new fluids, plugs, etc right after you get it. Or at the very least checked. Check each system here. Easy stuff first, then we move on. We'll go threw the ignition system first, it'* easy. Then fuel. Fuel filter is a possiblilty but that'* a pain to change. Have you checked for vac leaks? For this take carb cleaner and spray a little bit on the vac lines while the engines running. The idle will change if you spray on a leak.

I was thinking it could be the fuel filter too but I dont have a lot of experience with cars. ok now dumb question...where are vacuum lines?
Look at this picture, most of the red lines are vac lines.

cool thanx, I'll give that a try whenever I possibly can.
Old 03-09-2008, 11:10 AM
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Default Re: whats wrong?

Originally Posted by clm2112
Originally Posted by velvetdreams21
No and No unfortunatly
Sorry, I was typing a response and missed your reply to a different post about just getting the car.

The advice given is a good place to start then... look for items disconnected under the hood (little wires hanging out in mid-air or hoses not connected to anything) Sometime during a "tune-up" stuff gets left disconnected (particularly vac fittings). If you have a digital camera, now would be a good time to snap a couple of pics and post them. Most of the folks on the forum know what looks stock and what has been modified..they can spot whether the motor has been hot-rodded by a previous owner.

Stumble on WOT acceleration is not a mechanical problem perse...all motors can do it, it'* usually fuel/air mixture or ignition related....hence all the suggestions to go look for leaks, bad sensors, and sparkplug related items.
No problem. Luckily I already have pics taken of the engine.
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Old 03-09-2008, 11:19 AM
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Those plug wires dont look stock, look like 8mm or so. Cant see the back wires. Want to see if there close to manifolds or to close to O2 sensor wire.

Can you remove teh supercharger cover so we can see the vac lines?
Old 03-09-2008, 11:21 AM
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depends, what am I gonna need, just a socket set?
Old 03-09-2008, 11:22 AM
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Do me a favor and check plug wire #4 at the coil. Is it me or does it look a little off? Pull up, twist and push back down, so it'* seated. Could be nothing, but worth a check.


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