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Re: Temp Gauge 200 1993

posted by  someone claiming to be Don Foster on  Sat Nov 25 23:46 CST 2000 [RELATED]

Ben --

The gas gauge is OK?

And the engine appears to reach temperature? (That is, you get adequate heat from the heater?)

If so, I'd check:

  • The connection at the temp sensor (in the head under intake header #2)

  • The nuts securing the temp gauge to the instrument cluster PCB (printed circuit board)

  • Resolder the temperature compensating board

  • Clean and tighten the four pins connecting to the comp board

  • Replace the LM2902 quad op-amp and the PNP transistor on the comp board. I've done this (cheap 'n easy) and can discuss the procedure.


Try this: Unplug the sensor and ground the wire. Does the gauge peg at hot? If so, then the gauge and comp board are likely OK, and the problem's the sensor. If not, the problem is somewhere in the wiring or temp gauge circuitry.



Don Foster (near Cape Cod, MA)





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