Not sure what started it, but recently I noticed my RPM gauge needle is flickering.
https://youtu.be/bQWzqxWQEi4
My car is working well, this is clearly not representing the true values
Location: Bay Area, CA
Posts: 266
My VIN: 15190
Not sure what started it, but recently I noticed my RPM gauge needle is flickering.
https://youtu.be/bQWzqxWQEi4
My car is working well, this is clearly not representing the true values
Location: Leonardtown, MD
Posts: 9,006
My VIN: 03572
Probably the IC in the gauge has gone bad.
Location: Bay Area, CA
Posts: 266
My VIN: 15190
Oh so I need a new instrument cluster printed circuit?Originally Posted by Bitsyncmaster
Last edited by mburshtain; 03-07-2021 at 06:05 PM.
Location: Leonardtown, MD
Posts: 9,006
My VIN: 03572
IC is short for integrated circuit. Also known as a chip. It is soldered on the circuit board inside the RPM gauge.
Location: San Francisco Bay Area, Calif.
Posts: 2,083
My VIN: 0934
Club(s): (NCDMC) (DCUK)
That's a failure I hadn't heard of before.
So it calls for removing the old tachometer from the instrument cluster?
And replacing the tachometer?
March '81, 5-speed, black interior
Location: Bay Area, CA
Posts: 266
My VIN: 15190
Thanks Dave, I will try to get a hold of a replacement
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Location: Northern NJ
Posts: 8,581
My VIN: 10757 1st place Concourse 1998
Before ordering parts just try plugging and unplugging the connector to the flexible PCB. It could just be a bad connection and plugging and unplugging the connector will clean the connections up and maybe fix the problem.
David Teitelbaum
Location: Bay Area, CA
Posts: 266
My VIN: 15190
Great advice David, I will give it a try.
Location: North GA
Posts: 6,177
Club(s): (SEDOC) (DCUK)
I have a tachometer that reads off due to a bad precision resistor. Since I haven't had any luck sourcing a replacement resistor, I'd be interested in your old unit if you have to replace it. Or, maybe we could work something out where Dave M could rob the IC out of mine.
PM me.
Location: Leonardtown, MD
Posts: 9,006
My VIN: 03572
What resistor do you need?
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Dave M vin 03572