1988 fuel sending unit
Thread Starter
8th Gear
Joined: Sep 2007
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1988 fuel sending unit
Does anyone know what is so special about the fuel level sending unit in a 1988. Everyone seems to have units for every year available but the 88. Can I convert the sending unit if this item is really hard to find?
Safety Car
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Le Mans Master
Joined: Sep 2006
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From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
sending unit
by the by,
I installed a 90 unit in my 86. The newer unit has more stiffeners on it, and an aditional ground wire. The hookups were the same except the 90 unit has the extra ground wire installed in the connector.
Since I have gone from before your year to after your year, any year from probably 88-90 would probably fit without modification if it has the 3 pin plug at the tank.
I installed a 90 unit in my 86. The newer unit has more stiffeners on it, and an aditional ground wire. The hookups were the same except the 90 unit has the extra ground wire installed in the connector.
Since I have gone from before your year to after your year, any year from probably 88-90 would probably fit without modification if it has the 3 pin plug at the tank.
Thread Starter
8th Gear
Joined: Sep 2007
Posts: 8
Likes: 0
Thread Starter
8th Gear
Joined: Sep 2007
Posts: 8
Likes: 0
by the by,
I installed a 90 unit in my 86. The newer unit has more stiffeners on it, and an aditional ground wire. The hookups were the same except the 90 unit has the extra ground wire installed in the connector.
Since I have gone from before your year to after your year, any year from probably 88-90 would probably fit without modification if it has the 3 pin plug at the tank.
I installed a 90 unit in my 86. The newer unit has more stiffeners on it, and an aditional ground wire. The hookups were the same except the 90 unit has the extra ground wire installed in the connector.
Since I have gone from before your year to after your year, any year from probably 88-90 would probably fit without modification if it has the 3 pin plug at the tank.
Safety Car
Joined: Jul 2004
Posts: 3,845
Likes: 30
....send me your e-mail address in a pm and i will e-mail you some "material" in the morning.......later...
Thread Starter
8th Gear
Joined: Sep 2007
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Sorry that I am learning how to use this forum. I am a rookie. My dash fuel gauge reads full, even when I have to add 8 or 10 gallons to fill it up. I put some Seamfoam in the tank and filled up with Chevron 93, and the dash gauge bounced around some but finally stopped at full again.
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Le Mans Master
Joined: Feb 2006
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From: Louisiana
Cleaning the contacts on the fuel gauge sending unit if the first step. Once cleaned with high grit sandpaper and WD-40 use an ohm meter to test it before putting it back in the tank. If that doesn't work, you will need to replace it. They run around $250 new or find a used one for less than half.
Thread Starter
8th Gear
Joined: Sep 2007
Posts: 8
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Cleaning the contacts on the fuel gauge sending unit if the first step. Once cleaned with high grit sandpaper and WD-40 use an ohm meter to test it before putting it back in the tank. If that doesn't work, you will need to replace it. They run around $250 new or find a used one for less than half.
Give me some advice on where to find a 1988 unit. I can find plenty 1984 through 1987 and from 1989 on. I can not find one specifically for a 1988.
Safety Car
Joined: Jul 2004
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check you pm's again....
Last edited by Da Mail Man; Oct 5, 2007 at 08:05 PM.
Pro
Joined: Sep 2001
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From: Stuck in the 80's
I did the repair procedure in the tech list, helped somewhat mine now reads full until about half a tank then reads correctly so I'm not messing with it anymore.
I just reset my trip odometer each time I fill up to track my mileage vs fuel gauge. I can go safely 250 miles around town, 350 miles highway before refueling. This way in case it goes out again I won't get stranded.
I should probably get one now before they are discontinued by GM. Eh hum......gmpartsdirect.com
I just reset my trip odometer each time I fill up to track my mileage vs fuel gauge. I can go safely 250 miles around town, 350 miles highway before refueling. This way in case it goes out again I won't get stranded.
I should probably get one now before they are discontinued by GM. Eh hum......gmpartsdirect.com
