my speedometer stoped working. I replaced the sensor that screws into the back of trans, & it made no difference. when the speedometer stopped working one time before, the engine would not rev above 1700 with out shaking & missing & I lost a lil horse power, replaced sensor that time & that sloved the problem. now it must be something else. though I have not lost any horse power & trucks revs to 1850 rpms. engine running just fine this time.
what else can I check ? I turned the ign key on & tested the wires that go to the sensor. neither is hot. should one be ? thnak you..