Am i having CPS issues again?? Help
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Elder User
Joined: Aug 2009
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From: Clearfield County, PA
Am i having CPS issues again?? Help
About 3-4000 miles ago i had the same symptons as i did this morning. Truck started good drove good for an 1/8 mile or so then it would start cutting out/miss. Mostly when i took off from a stop or let off the gas but it would do it other times as well. When i would cut out i would hurry up and push the clutch in to prevent it from stalling. It turned out a new grey CPS fixed the problem last time. Same exact story this morning. I can even shut the truck down and it start right up but when i take off it will cut out/miss again. I had NO SES light either time. The weather here has been wet the last couple days but i drove in pouring rain yesterday for 50 miles with no issue. There was no rain this morning just cloudy and damp. I mention this because i have heard there is a ground with the wiper motor somewhere? Can anyone elaborate on this? So my guess is CPS but why in just 3-4000 miles? Could it be something else? Thanks!
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Elder User
Joined: Aug 2009
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From: Clearfield County, PA
Ok update. So i put a different CPS in it that was a known good one and i does the same thing but now it stumbles on start up but catches itself and will idle and then cut out stumble and then idle normally. I also tried to unplug the ICP (even though its fairly new) but still did the same thing. Again all this is happening without a SES other than when i unplugged the ICP. I checked the IPR and the nut it still tight but i noticed that where the plug plugs in the black part can move almost 1/4 inch from left to right, is this normal? Any other ideas? Im going to get a guy with a scanner to come down and check it out hopefully tomorrow.
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Elder User
Joined: Aug 2009
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From: Clearfield County, PA
Well I only got to check the codes with a generic scanner and got 3 codes but only one meaningful one which was a p1280 which I don't understand. Still going to try to get a good scanner to scan it tonight. Te truck will hardly even start. It kinda sounds like it did when I had UVCH issues but there both brand new
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From: Denton, Texas
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Elder User
Joined: Aug 2009
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From: Clearfield County, PA
Yes problem was the 42 pin wiring harness that runs over the drivers side valve cover rubs and makes contact with the valve cover. I took it and taped everything up and no problems ever sense
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the most rewarding part of helping people is when they post what fixed it so others may make use of this info....
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