Cam "Walking"?
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Joined: Jun 2004
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Cam "Walking"?
Had my truck in for a water pump repacement (1995, 2wd auto 120k), and while they were replace the CPS with my spare in the glove box. The truck was showing symptoms of a bad CPS for quite a while but has had few issues as of late. They put the new one in and now can't get the truck to run right. Thier conclusion is that the cam is "walking" and the sensor cannot pick up the cam. Right now they have given me two options, pull the engine and basicly rebuild the top end. Or, just get a new engine, the price difference is only about $800.00 and then I get a warranty. I just want it back the way it was, I could live with that. Any suggestions on what I should have them try next before spending $6700.00? Could the new CPS be bad?
Post Fiend
Joined: Jan 2004
Posts: 5,377
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From: Elkhart IN
well, you should get a second oppinion. take it to a local garage and see what they think. id check all of the connections for the tps. clean them real good. have you pulled the codes? what are they? you could pull the timing cover and see if theres any play in the cam, if so then theres you problem. yes the new tps could be bad, ive gotten new parts and had problems with them, traded them out and problemo solved.
Posting Guru
Joined: Aug 2004
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Do you have the rights CPS? There's an "early" and a "late" and it goes by serial number... but the split happened sometime in calendar year 1996 (not sure if it was a model year 96 or 97 truck though.) With a 1995 truck, you definitely have the early one. The early ones also originally used some shims, though I think the replacements do away with those somehow. In any event, with a 1995 truck you have to be careful which CPS you put in there.
Duncan
Duncan
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