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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rphroy!cmsa.gmr.com!SDOGGETT
- From: SDOGGETT@cmsa.gmr.com
- Newsgroups: rec.autos.tech
- Subject: Re: Faulty fuel guage (GMC Jimmy)
- Message-ID: <1687F74F0.SDOGGETT@cmsa.gmr.com>
- Date: 13 Oct 92 13:18:50 GMT
- References: <1992Oct9.202949.16188@mercury.unt.edu>
- Sender: news@rphroy.ph.gmr.com
- Organization: GM Research Labs
- Lines: 16
- Nntp-Posting-Host: cmsa.gmr.com
-
- In article <1992Oct9.202949.16188@mercury.unt.edu>
- chris@ponder.csci.unt.edu (chris gleaves) writes:
-
- >the printed circuit (the replacement was not new), but my fuel guage registers
- >as if I have about 20 gallons over full. If you push the needle to empty,
- >the needle will slowly move toward full, and then right past it until it is
- >"pegged". I checked the fuel guage by putting it in a friend's truck, it
- >
- You definately have an open circuit from the fual gauge to the sending unit in
- the tank. This truck uses a balancing coil type fuel gauge. You may need a sc
- hematic for this, but first disconnect the gauge wire from the sending unit and
- ground it (make sure you have the correct wire). If the circuit is good to th
- e tank the gauge will read E. If there was no change at the gauge move forward
- in the circuit. Ground the printed circ board next, thne move to the gauge ter
- m. Of course you can't ground the circuit before the gauge, but you're safe do
- ing this from the gauge back. Good luck Spencer Doggett
-