Question about 2000 Pontiac Grand Prix

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Incorrect fuel gauge reading or no reading

Gauge works sometimes

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  • 155 Answers

While it could be a bad gauge, as it's an electric gauge, most likely it's the sending unit inside the gas tank. Make sure your fuses are good, and your ground wires are clean and tight, especially under the car. If all that checks out, you might want to drop the gas tank and pull out the sending unit.

Posted on Aug 01, 2009

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Posted on Jan 02, 2017

pippall
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SOURCE: fuel gauge inaccurate

Change the fuel gage sender unit in tank.its faulty.

Posted on May 30, 2009

motor1258
  • 6674 Answers

SOURCE: Fuel gauge doesnt read correctly?

You'll have to go back & try to look up on top of tank where the fuel lines etc., attach to pump & sending unit assy. Will be a single wire or strap connected usually on ring around sending unit area.

Posted on Nov 29, 2008

  • 6 Answers

SOURCE: 89 C4 911 gauges reading incorrectly?

These cars are funky and this is normal...gauges on all of the earlier cars are for general reference...checking the oil level manually while the car is running and warmed up is the most proper way to do this...generally speaking, your pressure should drop as the car warms up, but still reach 5 bar on full accelleration (928's have the same gauge). The oil level gauge will actually increase as the car warms up...the difference can be dramatic.

Posted on Sep 11, 2009

  • 1168 Answers

SOURCE: 2000 Olds Intrigue fuel gauge reads randomly

The Olds Intrigue along with several other models had issues with the sending units in the fuel tank.
the resistor board and the metal contacts wear and lose contact.
The sending unit will need to be replaced.
The fuel tank will need to be dropped in order to replace it.

Posted on May 31, 2010

ftw1952
  • 10319 Answers

SOURCE: Random Fuel Gauge readings

The sending unit inside the fuel tank is at fault doing this to your gauge

It has a reostat that measures the amount of fuel in the tank. The float has a arm that rides along the reostat giving out the measurement. The arm is you can say waving up and down from a bad float that has no ablility to stay steadily bouyant no longer

Posted on May 31, 2010

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