Rattle after PMD change [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Rattle after PMD change


Otter
01-28-2010, 09:58 AM
I changed my PMD and when I drove it...it ran so much better than before. After driving it for about 20 minutes it would rattle at little of no throttle...mostly while coasting. If I gave it fuel it would smooth out beautifully, and pull better than before the change. The service engine soon light came on...I pulled over...sat for a minute, restarted it and it ran fine for the rest of the day.

Before the PMD change...it was a bit sluggish...but never rattled. At start up there would be a very small puff of white smoke at start up if it is below 45 degrees.

When I started it this a.m there was the same small puff of smoke and it rattled. I restarted it and the rattling went away.

everything else is up to date on it's service. I checked the tuna can and the turbo actuator...I'm at a loss.

Runs great went not rattling.

Otter
01-28-2010, 12:59 PM
Code read for bad crank position sensor.

She's all better again!