Mikes91
Full Access Member
Haven't had this happen in awhile...
RARELY, when I shift into Reverse (E4OD) I get no decrease in RPM and lots of black smoke out the tailpipe. The truck is just rearing to go backwards. The truck did this today for the first time in about 4 months.
SO... I tried shifting into various gears while the truck was misbehaving in this manner to see what would happen. When I put it in 1, the RPMs gradually declined to about 500, with lots of black smoke out the tailpipe. The engine really sounded like it was working, and it would not do a THING when I gave it the go pedal. Nothing. Shifting back into 2 or D and everything was OK. I didn't let the engine keep lugging in this manner because I figured it would eventually stall.
What does this sound like? Trans issue? Or maybe an injector pump issue?
My hunch is that the trans is working fine, but the IP for some reason is not doing whatever it needs to do. Why it would have issues in 1 is beyond me, given that the other forward gears are fine. I would appreciate any speculation on that point--makes me think that the TRANS is the issue. (I'm so CONFUSED!!)
Of course, I'll need to take care of this before towing stuff back east in March...
ON EDIT: 5 minutes after turning the truck off, I went back out and fired her up. Everything is ops normal now. Is there anything electronic that would somehow be setting itself incorrectly, resulting in these symptoms?
Mike
RARELY, when I shift into Reverse (E4OD) I get no decrease in RPM and lots of black smoke out the tailpipe. The truck is just rearing to go backwards. The truck did this today for the first time in about 4 months.
SO... I tried shifting into various gears while the truck was misbehaving in this manner to see what would happen. When I put it in 1, the RPMs gradually declined to about 500, with lots of black smoke out the tailpipe. The engine really sounded like it was working, and it would not do a THING when I gave it the go pedal. Nothing. Shifting back into 2 or D and everything was OK. I didn't let the engine keep lugging in this manner because I figured it would eventually stall.
What does this sound like? Trans issue? Or maybe an injector pump issue?
My hunch is that the trans is working fine, but the IP for some reason is not doing whatever it needs to do. Why it would have issues in 1 is beyond me, given that the other forward gears are fine. I would appreciate any speculation on that point--makes me think that the TRANS is the issue. (I'm so CONFUSED!!)
Of course, I'll need to take care of this before towing stuff back east in March...
ON EDIT: 5 minutes after turning the truck off, I went back out and fired her up. Everything is ops normal now. Is there anything electronic that would somehow be setting itself incorrectly, resulting in these symptoms?
Mike
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