Gas Gauge... Is it the Sending Unit?
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True Car Nut
Joined: Aug 2003
Posts: 5,246
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From: Salina, KS
Just to double-check, when you turn the key on the car, all the guages, including the gas guage, does a sweep all the way to full, back to empty, then to current reading. Is this what she was talking about?
Also, the gradual metering of the guage upon acceleration and deceleration almost sounds normal. As much as 1/4, is this only upon hard accel/decel? Also, on our cars, you'll notice in on gradual turns to the right, ar maybe it was left (confimation on that, please? )
The sender going out causes the guage to be much funkier than what you describe. I'd just hate for you to do an unnecessary changeout, then experience the same thing.
Also, the gradual metering of the guage upon acceleration and deceleration almost sounds normal. As much as 1/4, is this only upon hard accel/decel? Also, on our cars, you'll notice in on gradual turns to the right, ar maybe it was left (confimation on that, please? )
The sender going out causes the guage to be much funkier than what you describe. I'd just hate for you to do an unnecessary changeout, then experience the same thing.
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no after talking to her last night i'm 99.9% sure that its bad. She said that once she hit about 1/2 to 1/4 of a tank the gauge spiked to Full. This seems to be more consistant with what other members discribed. My dad must have orignally noticed it starting to fail. Her gauge has been pretty steady before when i drove the car, even at the half or less stage. So if its moving as much as they say it is then i have to think something is bad.
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Posts like a V-Tak
Joined: Apr 2006
Posts: 47
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From: Valparaiso, IN
My wife reported the same problem with our '00 Bonne a few weeks ago and after driving it a few days ago I noticed something going bad as well. I've seen it go from 1/4 to 3/4 under conservative driving habits. Initially I was thinking maybe a wiring connection as I thought when a sending unit went bad it would read high off-scale. I have it at home today and was considering testing resistance on the sending unit but don't know where to hook up the ohm meter. At least that access cover in the trunk saves from having to drop the tank (whether it'* 1/4 empty or 1/4 full). Thanks for the link that I'll now look at.
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Posts like a V-Tak
Joined: Apr 2006
Posts: 47
Likes: 0
From: Valparaiso, IN
I was wondering why people weren't buying the fuel sending unit and I just learned why. The fuel sending unit seems to come with the fuel pump and retails out around $540. Little wonder now why people are buying "4-finger Louie" for under $40. I can get it for $30 with 1 day lead time. Now that penetrating fluid is soaking in, hopefully I'll be able to inspect the fuel sending unit.
Seems sort of strange that the procedure mentions a tool for use that apparently isn't sold by GM, unless it'* just the dealer I contacted.
Seems sort of strange that the procedure mentions a tool for use that apparently isn't sold by GM, unless it'* just the dealer I contacted.
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Sep 8, 2007 09:44 PM