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Fuel level sensor, what the dealership told me...

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Old 11-18-2008, 03:53 AM
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Here's a pic of what happens to the sender.
Should be 3 little fingers on each of those two tabs. They're all worn away.

Old 11-19-2008, 10:36 PM
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Originally Posted by Torque_Wrench
the GM Technical Bulletin reccomends the usage of a Fuel System Treatment. The GM Part number on the Treatment is 88861011. The treatment DOES contain Teflon. So the Teflon coats the sensor and keeps it working properly.

While I have had some sucess in resurecting failed fuel level sensors with this treatment, the pass/fail rating is about 60/40.
Got it! I'll let you know how it turns out. But at $25 a bottle, this stuff better do something.
Old 11-20-2008, 09:09 AM
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Originally Posted by TX Tahoe Z71
Got it! I'll let you know how it turns out. But at $25 a bottle, this stuff better do something.

Holy Moly...the Counter Guy didn't cut you a break on that? **** the bed!!! I feel terrible trying to tell someone that stuff is $25.00. I keep ours marked down to $18.50 per bottle. While $18.50 is still high, it sure ain't as high as $25.00.

You may need to schmooze the guy a little.
Old 11-20-2008, 12:02 PM
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Originally Posted by Torque_Wrench
Holy Moly...the Counter Guy didn't cut you a break on that? **** the bed!!! I feel terrible trying to tell someone that stuff is $25.00. I keep ours marked down to $18.50 per bottle. While $18.50 is still high, it sure ain't as high as $25.00.

You may need to schmooze the guy a little.
I know... and he even made me pay for my DTRL bulb, I was used to them handing it to me and telling me not to worry about it. But I guess GM is hurting for income right now, so I consider paying full price as my charitable act for the day.
Old 12-01-2008, 09:38 AM
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So after the special GM injector cleaner, the gas gauge moves a little slower making it look as though I am using less gas (however I don't really know if it is any more accurate), but it still only reads as high as 3/4 tank when I fill up. I feel like it might be more accurate just because it doesn't jump from 3/4 tank to 1/2 tank after a day of driving and now it slowly decreases. Either way, it was worth a shot.
Old 12-01-2008, 02:55 PM
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Originally Posted by TX Tahoe Z71
So after the special GM injector cleaner, the gas gauge moves a little slower making it look as though I am using less gas (however I don't really know if it is any more accurate), but it still only reads as high as 3/4 tank when I fill up. I feel like it might be more accurate just because it doesn't jump from 3/4 tank to 1/2 tank after a day of driving and now it slowly decreases. Either way, it was worth a shot.
After all that...it sounds like to me..that you may have a bad fuel guage in your instrument cluster. That is quite common. You may be getting the ol' run-around by your dealer or the Service Advisor.
Old 12-01-2008, 11:43 PM
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I just had the gauges replaced two weeks ago under under the GM recall/warranty. The service tech said it was the fuel level sensor, but I really don't feel like buying a new one then dropping the tank so my gauge will read "FULL" when I fill up.
Old 12-02-2008, 08:07 AM
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Originally Posted by TX Tahoe Z71
I just had the gauges replaced two weeks ago under under the GM recall/warranty. The service tech said it was the fuel level sensor, but I really don't feel like buying a new one then dropping the tank so my gauge will read "FULL" when I fill up.


this is what i did. https://www.performancetrucks.net/fo...d.php?t=422461
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