Couple of Issues - 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 04-16-2006, 01:50 PM   #11
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Quote:
Originally Posted by Bob Dillon
Also, this only happens in my car when I top it off, and only lasts for about the first 30 miles.
Now that i think of it... I filled it yesterday and it did it and the first day it did it I had just filled it also. Weird.
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Old 04-16-2006, 02:08 PM   #12
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Quote:
Originally Posted by Melissa
Quote:
Originally Posted by Bob Dillon
Also, this only happens in my car when I top it off, and only lasts for about the first 30 miles.
Now that i think of it... I filled it yesterday and it did it and the first day it did it I had just filled it also. Weird.
Nah, it'* just a few bad windings at one spot. It won't hurt anything and costs a lot to fix.

I find those kind of problems easy to ignore.
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Old 04-16-2006, 02:26 PM   #13
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FIrst suspect with a rough idle is always plugs and wires. Also, pull the plugs wires off one by one where each connect to the coils. Those terminals have been known to rust on some. Can try cleaning it up with some steel wool, then put some dielectric grease on it. If you find some, you'll want to clean out the plug wire end also. I've found one on my 2000, my friend'* 2000, my son'* 99 GP, and my daughter'* boyfriend'* 2000 GP.

The cat is doable, if you're good with a hacksaw and want to spend the time cutting the old one out. It is not repairable. Costs vary depending on what type you want to get.

Some have found some luck with the fuel sender by using an cleaner with the Techron additive. Here'* the link.

http://www.bonnevilleclub.com/forum/...hlight=techron

Tried 3 bottles so far in my son'* GP, and so far it has not corrected the problem.

Clean up all the connections you can find (battery, grounds, starter, etc.)

If you run into problems, we can probably set up a time where we can all look it over.
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Old 04-16-2006, 03:12 PM   #14
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Quote:
Originally Posted by Bob Dillon
Quote:
Originally Posted by Melissa
Quote:
Originally Posted by Bob Dillon
Also, this only happens in my car when I top it off, and only lasts for about the first 30 miles.
Now that i think of it... I filled it yesterday and it did it and the first day it did it I had just filled it also. Weird.
Nah, it'* just a few bad windings at one spot. It won't hurt anything and costs a lot to fix.

I find those kind of problems easy to ignore.
Yup, mine was like that for the first 50 miles of a full tank. My wife ran out of gas a few times so I figured it was time to change it. Plus, I changed the fuel pump too. It'* good preventative maintenance to replace that as well if you change the sender.

I'm too anal to let small issues like that go...
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Old 04-16-2006, 04:18 PM   #15
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Default Re: Couple of Issues

Quote:
Originally Posted by Chad V
Right now, Melissas SE has kinda a rough idle,
2.) WOT there is a rattling noise that goes away after a second or two
3.) Gas gauge at idle, occasionally drops to E then will either go back to F or whatever it may be at the time or you need to shut the car off and restart.
4.) At a stop, with the blinker on, the engine sounds the lull everytime the blinker flashes, but the alternator and battery were checked and were okay.
1. Check and clean off the mass airflow sensors, plug wires for tightness / cracked wires / boots are over the plugs fully

2. don't know how to explain this
3. Bad sending unit / voltage regulator / sensor for the float possibly
4. mine does this, too. i ran a continuity test, and everything else i knew or could think of, didn't find a problem, i just use the blinker, engine hasn't died yet

good luck
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Old 04-16-2006, 04:32 PM   #16
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With that sending unit, she put in some valvoline fuel system cleaner in her tank about 3 semi fill ups ago[half-tank or more]. Could that have "gummed" up the sending unit? Cause before she put the cleaner in, she didnt have a problem with the gauge. I entertained the idea of running the tank till E then filling it up to get any last bits of the cleaner out, and she thought about putting premium in, but that would probably be a waste of money.
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Old 04-16-2006, 05:13 PM   #17
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Couldn't the rattle just be ping also? Thats the first thing that popped into my head.
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Old 04-16-2006, 06:05 PM   #18
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Quote:
Originally Posted by Chad V
With that sending unit, she put in some valvoline fuel system cleaner in her tank about 3 semi fill ups ago[half-tank or more]. Could that have "gummed" up the sending unit? Cause before she put the cleaner in, she didnt have a problem with the gauge. I entertained the idea of running the tank till E then filling it up to get any last bits of the cleaner out, and she thought about putting premium in, but that would probably be a waste of money.
it says on the bottle to only use when filled up fully..

i haven't ever used the stuff, but i've considered buying it

i read things like that usually

check with someone who would know more in depth things about them than me, though
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Old 04-16-2006, 09:43 PM   #19
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I dont think its pinging, probably linked to the cat. My moms nissan pathfinder had a rattle at WOT that turned out to be the cat, if it were pinging, it would be a constant noise, instead of just and only at WOT.
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Old 04-16-2006, 10:15 PM   #20
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I doubt that the system cleaner was the cause of the problem. Just to be sure, I talked to m son about it, as he works at Valvoline part time. They have had no reported problems with people using the sytem cleaner, even with less than a fuel tank.

Unless the knock sensors are also defective, I doubt that it'* pinging.
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