RubberDuck
Death Row Inmate #1
- Joined
- Jan 12, 2007
- Messages
- 418
Guys this will kinda be long winded, but bear with me.
I was getting fuel a the station last night, and a Dodge truck pulls in with the cummins loping like a top fuel dragster. Once he stopped, and got out, the truck idled fine. Then I could hear the a/c kick on and it would lope out again real bad. I know I shouldn't be nosy, but I had to ask him why it did that. We've modified the crap out of some cummins at our shop, but never heard lope like that,and it not followed by lots of smoke. This truck didn't smoke a lick.
So I walked over to talk to him. It was an older gentleman who clearly was not into diesel performance. I had to ask him why it did that. He said "I have no idea." He's had it in 3 different shops, and none of them could fix it. One put on a VP44, no luck, another..ecm, no luck, and one did a lift pump. No luck. So I started asking questions.
It's a 99, but the shop put an unknown year model ecm on it. They believe an 01 standard......this truck is auto. This could be part of it, but it did it before the ecm.
The truck is stock top to bottom with 250k on it. Said it ran good for a while after he bought it, and it just went to crap after that.
He said you have to floor it to get it to move, and it won't pull a hill to save it's ass, even unloaded.
Also, the tach only works for a second after starting, after that, no tach.
So I'm thinkin' it needs a cam sensor, maybe a map sensor....I don't know. I just gave the guy my card and asked him to email me. I told him I would try to find out an answer, just for the simple fact that I want to know. So any ideas you guys have got, I'm all ears. Thanks for your time guys.
Cody
I was getting fuel a the station last night, and a Dodge truck pulls in with the cummins loping like a top fuel dragster. Once he stopped, and got out, the truck idled fine. Then I could hear the a/c kick on and it would lope out again real bad. I know I shouldn't be nosy, but I had to ask him why it did that. We've modified the crap out of some cummins at our shop, but never heard lope like that,and it not followed by lots of smoke. This truck didn't smoke a lick.
So I walked over to talk to him. It was an older gentleman who clearly was not into diesel performance. I had to ask him why it did that. He said "I have no idea." He's had it in 3 different shops, and none of them could fix it. One put on a VP44, no luck, another..ecm, no luck, and one did a lift pump. No luck. So I started asking questions.
It's a 99, but the shop put an unknown year model ecm on it. They believe an 01 standard......this truck is auto. This could be part of it, but it did it before the ecm.
The truck is stock top to bottom with 250k on it. Said it ran good for a while after he bought it, and it just went to crap after that.
He said you have to floor it to get it to move, and it won't pull a hill to save it's ass, even unloaded.
Also, the tach only works for a second after starting, after that, no tach.
So I'm thinkin' it needs a cam sensor, maybe a map sensor....I don't know. I just gave the guy my card and asked him to email me. I told him I would try to find out an answer, just for the simple fact that I want to know. So any ideas you guys have got, I'm all ears. Thanks for your time guys.
Cody
