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Old 08-22-2010, 12:19 AM
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Rzeppa Rzeppa is offline
Cruise Moab Chairman
Join Date: Aug 2005
Location: Kittredge CO, USA
Posts: 6,722

That is indicative of a short between the sender side of the gauge and ground. Do the easy stuff first. I assume it returns to the low side when the key is switched off, and pegs when the key is on, right? Probably even before the engine is running right?

Try unhooking the connector to the sender. If it is still pegged, then it is in the wiring. If it stops pegging and returns to zero, then it is a shorted sender.
Jeff Zepp
Kittredge CO USA
1971 & 1976 FJ40s, 1978 FJ45, 1987 FJ60
Rising Sun 4WD Club, TLCA #4063
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