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Old 09-29-2008, 02:25 PM   #47
Cybrjaz
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Join Date: Sep 2008
Location: Columbia, South Carolina
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Re: no bus and breaking down in '99 Durango

OK People - Listen Up - FINALLY got the stupid Durango running - please make a note and DO NOT REPEAT MY MISTAKES.

First off - the ONLY thing wrong with my truck was the CAMSHAFT POSITION SENSOR.

All of the other parts - Crankshaft Position Sensor, PCM, etc., were not necessary replacements . . . why???

Because what no one tells you is that if you replace EITHER the Camshaft Position Sensor OR the Crankshaft Position Sensor then you have to reset your PCM to FACTORY DEFAULTS and RELEARN the PCM to your particular vehicle's setup. The Camshaft PS and the Crankshaft PS are out of sync when you replace one or the other and when that happens the PCM will TEMPORARILY reset it's self to factory defaults but then revert to the previous settings thereby causing the vehicle to act all retarded again.

A few side notes - 1) Don't ask me how to reset the computer because I have no idea. I bought a new one and that didn't work either and I guess that SHOULD'VE already been reset - but whatever. I had a local mechanic look at it after I was at my complete wits end and wanted to use the stupid truck for AR-15 target practice. 2) The Crankshaft Position Sensor either WORKS or it DOESN'T. There is no "in between" or "intermittent" fault with this sensor. If you have an intermittent problem the Crankshaft Position Sensor is not the problem. 3) NEVER, NEVER, NEVER, EVER . . . move the Distributor. Apparently these stupid things are lined up just so and if you move them the Camshaft Position Sensor won't work right - stupid, I know. 4) Once you reset the PCM to factory - it will run crappy - not crappy as in not working but crappy as in a little higher RPM and a little lower MPG. This will level off as the vehicle relearns it's self and settles down - usually within 50 to 100 miles.

I REALLY REALLY REALLY hope this helps someone else because - Lord knows, I could've used this info 3 weeks and $450.00 ago. Thanks for all those that did help and I'm sure I'll be back.

Last edited by Cybrjaz; 09-30-2008 at 07:48 AM.
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