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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-26-2007, 12:58 PM   #11
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Quote:
Originally Posted by singscountry1967
fdh01bonneville - excellent point!

Update on my sputtering: changed out the fuel filter....still ran incredibly bad. Added K100g, to a nearly full tank and drove 15miles to home - still ran badly. Car sat overnight. This morning - HUGE difference. There'* still a sputter once in a while, but nothing like it was yesterday. I need to run out this tank and get fresh gas in... then see if the prob comes back.

Sapphire: The K100g fuel additive states it will clean the fuel injectors as well as eliminating water. I'm no expert, but you could start by eliminating the possibility of bad gas by using this or a similar additive. It was highly recommended and I am impressed with how it improved my sputtering situation overnight.
I'm gonna pick some up after work tonight. Its worth a shot at the very least. If not I guess I'll be off to Century Pontiac to see my service guy. ..everytime I see him its always the same thing though "thats gonna cost ya about $800" lol. Screw this college deal, I'm gonna open a GM repair shop.
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Old 03-26-2007, 01:28 PM   #12
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Not everyone carries this product - in my area only Advanced Auto and the indian reservations carry it.
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Old 03-26-2007, 01:50 PM   #13
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Quote:
Originally Posted by singscountry1967
Not everyone carries this product - in my area only Advanced Auto and the indian reservations carry it.
Advance is down here also (happens to be the closest). Maybe I'll just give them a call to be sure. Thanks.
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Old 03-26-2007, 02:04 PM   #14
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Does it stall when not in gear? Idle appear to be rough?

Thing I'm thinking is how you mention after 10-15 min of running it starts to give trouble. This could be something heat related, about 10-15 min into a drive the motor will be up to temperature.

Look over all the wires by the coil packs (specifically non plug wires) Check the connector at the ICM (front of coils) to make sure it'* snug, look for any signs of rubbing or other silly issues. IIRC wasn't it a little while back someone was working on your car?
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Old 03-26-2007, 03:43 PM   #15
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Quote:
Originally Posted by BillBoost37
Does it stall when not in gear? Idle appear to be rough?

Thing I'm thinking is how you mention after 10-15 min of running it starts to give trouble. This could be something heat related, about 10-15 min into a drive the motor will be up to temperature.

Look over all the wires by the coil packs (specifically non plug wires) Check the connector at the ICM (front of coils) to make sure it'* snug, look for any signs of rubbing or other silly issues. IIRC wasn't it a little while back someone was working on your car?
Actually yes, the idle is terrible and and it has trouble while in Park. I was told that two of my ignition coils needed to be replaced by Pontiac, but when another mechanic looked at them he said they were fine. Could that be the source?
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Old 03-27-2007, 07:58 PM   #16
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It was the MAF Sensor. Plain and simple. Got it replaced and it runs like a top.
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Old 03-27-2007, 09:33 PM   #17
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Glad to hear you got it figured out! Did it ever send a code? Or did the dealer just change it out? Update on mine... have driven 100 miles on the k100g and the sputtering was none existant this morning. This afternoon, it acted up a bit though. The jury is still out on mine if it'* bad gas or not.
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Old 03-27-2007, 09:41 PM   #18
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Quote:
Originally Posted by singscountry1967
Glad to hear you got it figured out! Did it ever send a code? Or did the dealer just change it out? Update on mine... have driven 100 miles on the k100g and the sputtering was none existant this morning. This afternoon, it acted up a bit though. The jury is still out on mine if it'* bad gas or not.

Well, I went to several places after the SERVICE ENGINE SOON light finally came on. As expected, none of the scan tools would pick up the code. The GM tool (Tech II I think) picked up P102. Or at least, thats what I was told. They also picked up the EVO Sensor code which indicates the Steering Wheel Position Sensor which causes the SERVICE STABILITY message on the DIC. When I drove off after the repair I noticed that not only did the engine stop sputtering and stalling, but I had a lot more power also. I guess I didn't realize how bad the performance was all around. How is your performance?
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Old 03-27-2007, 09:52 PM   #19
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Quote:
Originally Posted by SapphireTorrent
I guess I didn't realize how bad the performance was all around. How is your performance?
Lol...never very good... its not supercharged. But seriously, when you drive it everyday, you don't notice the gradual decreases in performance...so I honestly can't say how it is. Right now, not so hot.
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Old 03-27-2007, 10:15 PM   #20
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Well, I would say its more of a sluggish feeling. Kinda how it would feel to drive around wiith about a dozer cinderblocks in the trunk. Just to warn you though, at the dealer it cost $404.07. Plus they did the EGR Valve Service for $149.00. So, it was an expensive day at the dealer. I almost bought a GXP GP while I was waiting, repairing this vehicle is getting to be a burden. Though, I am kinda glad I didn't leave with a car payment. ...which has happend before.
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