Question about 2001 Cadillac DeVille

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Gas gauge goes crazy and false codes pop up on dash

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Bad ground from the sensr unit,bang on the fuel tank and see how it behaves to confirm

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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2000 ford explorer 4.5l triton eddie bauer edition , my question is why do all the gauges go crazy at the same time and keeps popping the 5amp fuse under the dash #15 could my computer be bad ??


Not the PCM, the PCM is on the back side of the fuse. Most likely the logic chip in the instrument panel is shorting to ground. If all the gauges do it, Look at the IP. On older models the PCM doesn't control the gas gauge and sometimes the coolant gauge.

Sep 10, 2016 | Ford Explorer Cars & Trucks

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Gas gage goes crazy,how do I know if its the sensor or the float on my 1995 chev. Tahoe 1500


If your "goes crazy" means what I think it does, it's unlikely to be a float. That failure mode is "empty" all the time.
I'd say either sensor or wire between sensor and gauge.

Jun 15, 2015 | Chevrolet Tahoe Cars & Trucks

1 Answer

Gauges going crazy


Euc? Do you mean ecu, the computer? Don't think so. Something in the cluster, maybe the little voltage regulator on the back of the cluster. But if the engine light is flashing, definitely have it scanned for trouble codes, first, to see why the light is on. The light may indicate a poor link or connection with the cluster.

Aug 13, 2013 | GMC Envoy Cars & Trucks

2 Answers

Speedometer of 2003 dodge neon does not work and gas gauge is jumpy. replaced 2 input and output vss sensors and still won't work. no codes show on scanner


some of these have had problems with the dash assembly causing alot of problems with gauges and lights and speedometers.if there are no codes in the computer and weren`t any before you replaced the vss sensors then you spent money you didn`t need to.

Mar 18, 2011 | 2003 Dodge Neon

1 Answer

The gas gauge on my Ford 2006 F350 V10 28,000 miles is giving me false reading on my gas gauge. The low fuel continuously goes on no matter how much gas is in the tank. What could be the problem.?


The Fuel level FLOAT, in the tank is defective. Possible that it "holed", and has sunk to the bottom of the tank.
To check, separate the harness plug to the Tank sender unit, and ground the supply to a suitable place on the frame. The dash gauge should record "Full", therefore the sender unit is suspect.
regards. DT

Mar 11, 2011 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

Dash went crazy


I TOOK THE CAR TO THR DEALER IT WAS MY COMPUTER SECURITY SYSTEM BUT IS MAKE THE CAR DO A LOT OF CRAZY THINGS$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

Jun 17, 2009 | 2001 Cadillac DeVille

1 Answer

Speedometer and gas gauge are giving false readings!


IT SURE SOUND TO ME LIKE YOU ARE MISSING A GROUND TO THESE GAUGES. THIS WILL BE TOUGH TO LOCATE WITHOUT A SCHEMATIC DRAWING TO HELP YOU. YOU MAY BE ABLE TO LOOK UNDER THE DASH FOR A LOOSE WIRE. YOU CAN ALSO CHECK THE FUSE PANEL FOR THE FUSE MARKED GAUGES TO SEE IF IT IS MAKING GOOD CONTACT. HOPE THIS HELPS. BEST OF LUCK. LET ME KNOW PLEASE. THANKS FOR USING FIX-YA!!!!!!!!!!!!

May 05, 2009 | 1998 Isuzu Rodeo

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