Hey guys never been on here before the last three hours. My father in law has an 01 2500 that is our ranch truck. A little over a year ago I experienced a dead pedal driving down the road. The cruise control quit working at the same time and the temp guage pegged all the way to the hot. Code said it had low voltage to apps and replaced that. Then ecm failure, replaced that. Then lift pump, injector pump. In that order. Now there is high voltage to them all and the wait to start light cycles normally occaisionally but for the most part just blinks on and off quickly. It is equipped with an exhaust brake so tomorrow i am going to clean the mapp sensor and the IAT sensor because evidently I should have been doing that for the last 136,000 miles. Could those cause such problems? I am also going to call this Tim guy who seems to be pretty savvy at these machines and ask him if maybe we didn't calibrate the apps properly? I will check codes tomorrow because the ones I have written down dont seem to be the same as what everyone else is getting but all are getting high voltage mapp, apps, ect, air temp sensor. Anyone have ANY idea where I should go from here.

 

Post your codes here and also update your signature on the "User cp" page so we know exactly what you have. Sounds like a lot of problems for only 136K miles.

 

Went through the apps with Timbo on the phone. Thanks to him we have eliminated that although he said we should not be getting the codes that we are still getting. So here are the codes from the truck's odometer 1693-563-236-113-286-1286-1475-606-343-118. Then we put a code reader on it and only came up with a fraction of those codes but came up with the following codes 606-238-123-118-113. Timbo suggested that he has heard of things like this happening when the ecm was bad. But that has been replaced. Could it be bad again?
On a side note Sheriffav8r suggested I update my signature with the trucks we have out here. I went to do that but we have a bunch of trucks on the ranch and it only has space for one? Am i doing something wrong or looking in the wrong place?
Thanks
Mike

 

You'll want to check all the electrical grounds on the vehicle........often bad/corroded grounds will be the problem when you get many codes all at once, especially the "voltage too high" codes.

 

Tried Three different ecm from dealerships and that company in FL. Ended up replacing ecm with a used one out of wrecked 02 and fixed the problem after bringing it to another mechanic to go through wiring. I can't help but be dissappointed in shops that sell something like these junk parts. Cost me alot of extra money by operating under the assumption that the replaced parts were good parts.