post #1 of Old 08-24-2013, 06:35 PM Thread Starter
jay-h
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1989 YJ Wrangler 
 
Join Date: Dec 2006
Posts: 5,027
fuel gage problem

I just picked up a 97 GC with 187K miles.

It has one problem that I see (it stands out because the vehicle is rather pristine: very little wear on seats and rugs, all service seems to have been done professionally, all the accessories and features seem to work--no hacked looking fixes). The gas gage flicks back and forth between zero and correct. It's an instant shift, it could be at zero and a second later it could be reading fine.

I'm guessing it's a connection issue; the connector outside the tank seems ok. Are there other places prone to failure?


My toys
'89 Wrangler YJ
'47 CJ2-A

wife's toys
97 Grand Cherokee (ZJ)
87 MB 560SL roadster
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post #2 of Old 08-24-2013, 07:42 PM
jabba974
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1996 ZJ 
 
Join Date: Mar 2013
Location: Ionia
Posts: 246
My bet, if the connections are good, is that the sending unit is bad....It works on resistance, and could have a bad spot in it, or a broken wire in the harness....Does the problem change when you fill the tank up compared to when its empty?
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post #3 of Old 08-24-2013, 11:52 PM
nekolin
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1995 ZJ 
 
Join Date: Dec 2012
Posts: 74
this may sound stupid but i had the same problem. get under your gas tank and give it a good kick. thats how i fixed mine
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post #4 of Old 08-25-2013, 06:25 AM Thread Starter
jay-h
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1989 YJ Wrangler 
 
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Posts: 5,027
Quote:
Originally Posted by jabba974 View Post
My bet, if the connections are good, is that the sending unit is bad....It works on resistance, and could have a bad spot in it, or a broken wire in the harness....Does the problem change when you fill the tank up compared to when its empty?
Doesn't seem to. When it is working it's right on. When it stops, it just goes to full empty. That's why I thought it is a connection (I think a sticking float or dead spot on the sender would behave somewhat differently)

My toys
'89 Wrangler YJ
'47 CJ2-A

wife's toys
97 Grand Cherokee (ZJ)
87 MB 560SL roadster
jay-h is offline  
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