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Fuel gauge problem

JAVOK

New Member
Joined
May 14, 2022
Messages
3
Location
FL
Hello, I have problems with the fuel gauge, when I start my jeep it shows full and it also goes down to empty. I changed the fuel pump and sending unit but the problem remains. any idea what it could be?
 

TJ4Jim

TJ Expert
Lifetime Supporting Member
Joined
Dec 9, 2015
Messages
3,456
Location
Brookings, Oregon
Hello, I have problems with the fuel gauge, when I start my jeep it shows full and it also goes down to empty. I changed the fuel pump and sending unit but the problem remains. any idea what it could be?
Welcome to the forum.

I would disconnect the fuel pump wire connector and closely inspect the vehicle side of the plug and the wires in the loom for any corrosion damage.
 
OP
JAVOK

JAVOK

New Member
Joined
May 14, 2022
Messages
3
Location
FL
I cleaned the plug and looked for a break in the wiring under the jeep. Also clean the cluster plugs.