Attention: TDR Forum Junkies My '98. 5 would not restart yesterday after a five minute engine stop (first time this has occurred). When towed to the nearest service station (full service shop) and code checker attacted, there were no stored codes. Lift pump was activating on every key off/on/start cycle, pressurizing and shutting off before engine was cranked, but ran for about 30 seconds after cranking stopped. The lift pump was replaced once in September, 2001.
I called a diesel shop (nearest is 60+ miles away) and discussed problem with the owner. He seemed to think it was the injection pump failure. I seemed to think that it might be another lift pump, but even when my first lift pump failed, the truck would start and run at idle, and even under light load up to about 35 MPH before it started bucking. In this instance it would not even pop once.
After about one hour of engine off time, and 20 minutes since the last time cranked, I went out and on a lark tried to start it again. It fired right up immediatly, on the first rev, as if nothing had ever happened. It was still running smoothly after 15 minutes. A short test drive revealed no loss of power, so I have to surmise the lift pump is working OK, at least most of time.
The truck is still at the service station. I was afraid to drive it home. I suspect an electrical malfunction now with the injection pump, probably heat related. However, I also wonder about terminal corrosion. I live in NW Montana and we get our highways sprayed with liquid deicer, pretty corrosive stuff if it got into the wrong place. But why no codes?
This is a work truck. I cover all over NW Montana almost every week, so need it back ASAP. The truck has never before left me stranded like this, even when the lift pump quit and the infamous fifth gear nut backed off.
Any ideas would be appreciated before I decide to have it towed to the diesel shop. I will not risk a 60 mile drive until I find out what is wrong.
Specs: 98. 5, 2500, stock engine, 5-speed, LB, PacBrake
Thank you for your time.
- Larry
I called a diesel shop (nearest is 60+ miles away) and discussed problem with the owner. He seemed to think it was the injection pump failure. I seemed to think that it might be another lift pump, but even when my first lift pump failed, the truck would start and run at idle, and even under light load up to about 35 MPH before it started bucking. In this instance it would not even pop once.
After about one hour of engine off time, and 20 minutes since the last time cranked, I went out and on a lark tried to start it again. It fired right up immediatly, on the first rev, as if nothing had ever happened. It was still running smoothly after 15 minutes. A short test drive revealed no loss of power, so I have to surmise the lift pump is working OK, at least most of time.
The truck is still at the service station. I was afraid to drive it home. I suspect an electrical malfunction now with the injection pump, probably heat related. However, I also wonder about terminal corrosion. I live in NW Montana and we get our highways sprayed with liquid deicer, pretty corrosive stuff if it got into the wrong place. But why no codes?
This is a work truck. I cover all over NW Montana almost every week, so need it back ASAP. The truck has never before left me stranded like this, even when the lift pump quit and the infamous fifth gear nut backed off.
Any ideas would be appreciated before I decide to have it towed to the diesel shop. I will not risk a 60 mile drive until I find out what is wrong.
Specs: 98. 5, 2500, stock engine, 5-speed, LB, PacBrake
Thank you for your time.
- Larry
