Where is the ecu fuse on a 2003 Tahoe
AnswerWhat do you mean by haywire? Without more information, all I can tell you to do right now is to replace the filter you are using with an AC/Delco filter. The oil pressure sending unit may be defective if you are getting erratic readings. I mean that the water temp gauge needle goes way past the point to where it bottoms out and so does the battery volt gauge needle and the oil pressure gauge needle and the tach needle works when it wants to.
The 2003 Chevrolet Tahoe has 16 valves.
The 2003 Chevrolet Tahoe has a V8 engine.
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Dr. Bosch's Rules of Troubleshooting for 2003 Tahoe's 1. Make sure Key is in ignition of 2003 Tahoe 2. Make sure engine has been ignited of 2003 Tahoe 3. Drive car and watch for active speedometer of 2003 Tahoe 4. If speedometer fails, repeat step 1 of 2003 Tahoe -Dr. Bosch
Replace the gauge. This problem indicates an un-repairable failure inside the unit.
The 2003 Chevrolet Tahoe has a 4-speed automatic.
The 2003 Chevrolet Tahoe has overhead valves (OHV).
The 2003 Chevrolet Tahoe is a gas-powered vehicle.
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The curb weight of the 2003 Chevrolet Tahoe is 5042 lbs..