Howdy All,

I have a 2wd 01 2500 5.9 with very few modifications.  Primarily an Airdog Raptor FRRP  a K&N filter and a 5" turbo back exhaust.  I normally run 1oz/gal of Walmart 2 stoke oil in my fuel and my truck as been an absolute workhorse and has run super smooth....until this morning.

I filled up with fuel yesterday and ran about 65 miles.   This morning, I headed out to the hunting property.  As I got onto the highway and accelerated, my truck started "stutering" (for lack of a beter term) as the RPM climbed.  I pulled off of the highway, and put the truck in neutral.  With the truck in neutral, I slowly reved the motor up to 4500 RPM and it went up nice and smooth.  I put the truck back in gear and took it over to my local O'reilys just to be where I could get stuff if necessary.  I first checked my transmission fluid thinking that it might be that.  It was a little bit low but not much.  I added 300ml just to be on the safe side and headed back home.  Shifts were still erratic and the truck was still stuttering.

I spoke with a good friend over the phone and he mentioned that it could be a fuel issue.  I pulled the fuel filter to give it a quick look and didn't find anything glaring or big in the filter or in the fuel drained from the bowl.

I went in to read a few articles on what it might be and someone mentioned that, even if you just changed the filter recently, try putting a new one in.  I decided to give this a try and hopped in to go up to my local NAPA around the corner from the house.  BRAIN FART!!!  I forgot to reprime the bowl and fuel system before driving.  Needless to say, I ran my VP and cylinders dry....ARRRRGH!!!!!

I pushed the truck back home, broke loose 1,3 & 4 and commenced to restarting the truck.  It took a bit longer than norma but finally caught and ran rough, as it has in the past when repriming.   I tightened up my injectors but it never smoothed out.    I cracked 1&3 loose again and let it run rough of a few minutes to push air out.  Re-tighten again and nothing.   I bumped my starter and bled off the pressure test port on the VP44 to ensure that air wasn't trapped there.   Restart and I have a smoother idol but ZERO Pedal....Dead.....Deceased......PUSHING UP THE PROVERBIAL DAISIES!!

I attempted a ECM reset for pedal top/bottom but it makes not difference.

I finally decided to stop doing anything further with it until I had a chance to hear from folks who know a lot more than me.

Current state is that it will idol smooth at 800rpm but pedal might get it to 9-1100rpm max and it turns rough rough rough.

PLEASE GIVE ANY ADVICE YOU CAN.  I got laid off from the oilfield last month and really need to have a running vehicle to have any chance at finding work again.

Any and all help is highly appreciated.

Thanks,

Doc 

Well Gang,

The verdict came in. VP44 was shot due to the Airdog Raptor FRRP going intermittent on me. It was going back and forth between 14lbs and 0. I'm waiting for Airdog to make good on thepump and hopefully they will. So far they "can't find my name in their database". The guy who normally does warranty stuff is out until tomorrow. Had to drop the change on a stock pump to get it back on the road.

Be sure and get a fp gauge on it.  Even the FRRP does not have a great reputation. For that matter AD's reputation has suffered a lot in the past several years. I take you bought the original?

Edited September 10, 20159 yr by dripley

Well Gang,

The verdict came in. VP44 was shot due to the Airdog Raptor FRRP going intermittent on me. It was going back and forth between 14lbs and 0. I'm waiting for Airdog to make good on thepump and hopefully they will. So far they "can't find my name in their database". The guy who normally does warranty stuff is out until tomorrow. Had to drop the change on a stock pump to get it back on the road.

I hope they treat you right. Lifetime warranty should mean LIFETIME. 

I hope they treat you right. Lifetime warranty should mean LIFETIME. 

Mine went out about 6 months ago and they sent me a new one even though my warranty info was at home and I was not. They questioned me a little then asked where to send it to. But if you dont send the warranty card in, thats a different story.

If you have no luck swap to fass, and reassemble and move on. Air dogs rep is in the dumpster and odds are the new pump they send you will also be problematic.