Originally Posted by Dutch2005
Anyone have any idea what would cause the Fuel and Boost Guage to stick in one position. When I start the car the guages do there usual down, up and back to there proper position, then when I start driving they sometimes get stuck in one position. Could this be sensor problems ?
Not if it'* two independent gauges malfunctioning in synch, no. I think it'* more likely a physical contact problem in the gauge cluster.
If I remember right, these gauges are little stepping motors, and you can see each "click" of movement if you watch them closely enough (without driving into a tree), like when the engine starts to warm up and the temperature gauge needle starts to climb. It doesn't crawl; it goes in little increments instead.
The gauges are held to the circuit board by four pins on each gauge. The board they mount on is in turn connected to one or more other boards by ribbon cables, and two multi-pin harness connectors plug in the back. Any and all can oxidize and form intermittent connections, so you'll see effects like flickering fluorescent displays in the DIC or compass, that kind of thing. Your gauges may cut in and out for the same reason. They don't really _stick_; instead they lose the signal that tells the stepping motor where to go next with the needle, so it just stays wherever it was nudged to last time, until the signal comes back on-line.
Are there _any_ other problems in the gauge cluster at all? Any lights out, or displays that don't work?