Here's one for ya:
2001 F150 SuperCrew, 5.4L. 45K miles About 50% of the time I start the engine, all the dashboard gauges momentarily go to their maximum position, then return to the more proper position. For example, the speedometer and tach will 'peg out', completely clockwise bumping against the peg, then return. No check engine light appears. Of course, after that I'm a little spooked, so I'm watching everything very closely; it seems to hesitate a little at idle after this happens, as though one cylinder isn't firing every time it should. If I shut it off, re-start it, and the gauges don't peg out, the engine runs perfectly. Any Ideas? Thanks in Advance, Scott- posted
20 years ago