Just like it says. Only happens when the clutch is in coasting to a stop. No codes. When this happens I also notice a loud injector rattle that fluctuates. Truck runs beautifully and starts fine, every once in awhile it will do this and a rougher idle usually accompanies it. Any thoughts?

 

Rick,

The first thing I would do is disconnect the MP8 and RP gauge to rule out any issues with those external devices.

MikeyB

 

My 07 did something similar when the Quad RP guage was going bad. Seems kind of strange that it does it when you press in the clutch though.

Are you sure you are pressing the clutch in and not the brake?

 

Oh I'm sure... kinda hard to miss the steering wheel getting stiff!

Mikey, gonna try that tomorrow. My RP gauge has been dead for months, I wouldn't doubt it if it is causing the problem. The MP-8 seems to work fine. Worth trying to get a replacement rp gauge? I think I'm still under warranty.

 

jsut a quick note oncoasting and engine dying..........mine started doing that and next thing i knew a few days later i was dead on the side of the road. Fuel pump died.

 

yeah i would wanna say lift pump as well but who knows do you have a fp gauge

 

Fuel pressure is fine, pump runs fine, its an AD100.