yesterday i was pullin a trailer about 10k n was boostin around 40lbs 1/2 - 3/4 throttle n the truck almost sounded like a lean backfire n popped real loud twice in a row..could it be a air pocket? idk lookin for some input n possible solutions to fix it bc i dont want to deal with it again...outlook was on towing tune not CR

 

that's the bad sound of your rail being drained. Get yourself a good lift pump and that should help

 

i was watchin rail press n on the stock tune it was only around 14.6k...thats low isnt it

 

I had somewhat of the samething today. Just put the crazy larry program in and of course I had to try it out and at WOT it cut out a couple times and somewhat of a pop. The whole truck shook and I let off. Did it on a couple trys. I was told that it may have been a rail pressure code and the ecm defueled. I have the outlook but was not paying attention to the guages. Im going to try again and see what readings I am getting. I was also told that I need a pressure box.

 

My out look only goes to 19K.

Sometimes I see 20 for a split second on the performance tune. I dont have that many mods though.

 

De-fueled.

 

performance stays around 17-19k and CL a little more than that til the pedal goes to the floor then its around 15k..but 14.6k on stock tune? is my lift pump failing or is this right

 

I've been in a new truck with less then 6k on it and bone stock and felt/heard same thing going through a parking lot.This same truck over time had a strange short lasting idle/surge for a long time once in a while.Later at around 90k it had a FCA failure and ran rotton until it was figured out.Makes me wonder if the FCA didn't always have a sticking issue from when it was almost new running the CP3 low on fuel?

 

thats a good point bc i notice that same thing when the water temp is below 120 and when its cold and first start it up in the morning..stage 2 pump fix this prob?