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'93 940 Crank (RPM) Sensor Failure 900

posted by  spook on  Sun Nov 18 19:12 CST 2018
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last visit: Fri Oct 24 08:06 CST 2014
[RELATED]

Dear Amarin,

Hope you're well. I think the corrosion came from below, as the threads on the 10mm hex head bolt were bright and clean. There was only a narrow circle of rust around the outer edge of the bolt head's underside. The bolt was snug, i.e., no easy way for water to get under the sensor's flange. After nearly 15 years, the sensor doesn't owe me a penny.

I didn't consult the OBD: the tach's twitches ("fibrillations") seemed conclusive.

I have a photo but do not know how to upload it. The sensor's tip is fully encrusted by rust/corrosion.

Hope this helps.

Yours faithfully,

Spook






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