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been a while since I have posted here I am having trouble diagnosing a temperature problem my temp is consistently fluctuating it gets up to temp 163* then climes to about 190* for 2 seconds then falls to 150* then back to 163* and holds for a bit then back up to 190* back to 150* and then 163*...
I just finished building a marine 454 out of a auto block and all mercruiser outer parts from a 1999 mercruiser 7.4l mpi my question is, there is no plug on the wiring harness for the crank position sensor on the underside of the timing cover does this model not use that sensor I have built...
