Replaced DPFE, but it's still bucking!
#1
Replaced DPFE, but it's still bucking!
I've been suffering the dreaded bucking/hesitation/jerking at cruising speed (50-60 mph) and have tried several things to make it stop. O2 sensors replaced about a year ago, problem gone. Hesitation started again about six months ago so I replaced the plugs, problem gone again. Bucking started again about a month ago so I got a new DPFE. The hitching is about 90% better, but still there. Now what? Is there something that might be dirty or gunked up that I can clean? I just cleaned my MAF and K&N not too long ago, so I don't think that's it, but I can easily clean them again.
The only other thing I can think of in searching this and other forums is maybe my camshaft position sensor and synchronizer might be going bad but I don't have that chirping sound that goes along with a bad CPS. I'm not a big fan of replacing perfectly good parts, but I'm at a loss here. What else could cause this highway hesitation?
The only other thing I can think of in searching this and other forums is maybe my camshaft position sensor and synchronizer might be going bad but I don't have that chirping sound that goes along with a bad CPS. I'm not a big fan of replacing perfectly good parts, but I'm at a loss here. What else could cause this highway hesitation?
Last edited by RentonRanger; 12-29-2008 at 01:04 AM.
#2
https://www.ranger-forums.com/forum2...ad.php?t=77173
Another member had a problem like this; maybe it's an easy fix?
Another member had a problem like this; maybe it's an easy fix?
#3
#10
Now there's an idea!!
God, I hope it's not the tranny. I just had it rebuilt about four years ago.
God, I hope it's not the tranny. I just had it rebuilt about four years ago.
#11
it could be the cam sensor. you should feel it off of idle more though if it is losing signal. if the cam synchro goes bad it will chirb then lock up like mark said, but the sensor on top of it could be bad. with it running, have it scanned for pending codes. if it is intermittent it may not have a hard fault
#13
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