1999 IH 4700 dump truck. Intermittent rough running, dies sometimes. ICP plug and wiring look ok. It runs ok with the ICP disconnected. I hook it back up and most of the time it continues to run ok, but sometimes the rough running returns. I'm using the truck right now, but I crank it and let it warm up and charge the batteries every 3 or days or so.
Lately it runs ok each time I've run it. I cleared the codes, and as best I remember, the only one that came back on was related to the ICP. I don't remember the code number right now. The truck is borrowed, so I need to fix it before returning it to my friend. If I had the money, I would replace both the sensor and the regulator, but I'm retired, and funds are scarce. I'm not sure my friend even wants me to "mess" with it, but I have to offer. Any, and all ideas appreciated. Glad to find this forum, thanks to all who make it possible. Gary
Lately it runs ok each time I've run it. I cleared the codes, and as best I remember, the only one that came back on was related to the ICP. I don't remember the code number right now. The truck is borrowed, so I need to fix it before returning it to my friend. If I had the money, I would replace both the sensor and the regulator, but I'm retired, and funds are scarce. I'm not sure my friend even wants me to "mess" with it, but I have to offer. Any, and all ideas appreciated. Glad to find this forum, thanks to all who make it possible. Gary