Fuel Gauge Problem

2001 CHEVROLET MONTE CARLO

155,000 MILES • 6 CYL • AUTOMATIC

BIGGDRE12

MEMBER
2 POSTS

i have a 2001 chevrolet monte carlo ss and my fuel gauge is not working properly it either reads full or empty how do i fix this???

Mar 31, 2011 at 8:19 AM

JDL

✓Experienced Mechanic
16,098 POSTS

Could be a problem with sending unit in the tank? There should be an access panel in the trunk. At the wiring for the fuel gage sending unit, for testing, you can use a resistor, between the purple wire and the black wire with white tracer, key on, see if gage reacts to resistor, if it does, I suspect a problem with sending unit in tank. Using a 40 ohm resistor, the gage should read empty. Using a 200 ohm resistor, the gage should read full.

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Mar 31, 2011 at 8:56 AM

JDL

✓Experienced Mechanic
16,098 POSTS

Radioshack usually has resistors, don't cost much.

Mar 31, 2011 at 8:57 AM

BIGGDRE12

MEMBER
2 POSTS

thanks for the help

Mar 31, 2011 at 9:10 AM

JDL

✓Experienced Mechanic
16,098 POSTS

Let us know what you find.

Mar 31, 2011 at 9:33 AM

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