Hey all! GREAT forum!
Here's the problem I'm having, and maybe some of you can help...
My 07 with 180,000 miles on it has had a problem and I don't know where to look.
When I accelerate normally (which is admittedly pretty slow), as the truck nears 45-50 mph it begins to chug like it is starved for fuel. If I held the pedal at a steady rate when this happened, it wouldn't stop. In order to MAKE it stop, I have to either mash the pedal or let off and give it LESS acceleration for a longer period of time to get up to speed. This just started happening within the last month or so, and at first it only happened a few times but now it is constant. I fill up every other day, so I know I don't have old gas in the tank and I rarely let the fuel level get below a quarter tank.

Can anyone point me in a direction where to look? I'm a big believer in checking the simple things first!

Thanks!

 

Could be a list of things but....

Maybe a Low Grade Misfire. Check codes? FPDM?

 

Time for spark plugs and/or coils.

 

As well as plugs and COPs, when was the fuel filter changed?

 

spark plugs
cops+boots
clean the maf
clean the throttle body
change the fuel filter
change the air filter
check the fuel pump driver module for corrosion

all of these afore mentioned items can be located using this forum's search feature...

 

I'd start with fuel filter just because its way over due anyway.
clean the MAF because that's cheap and easy
then change plugs

 

Don't forget that cleaning the throttle body is cheap and easy also

 

My .02, ... have the cats checked. After I did all the above, my problem was clogged cats...

 

So the other day I changed the oil - a little overdue (8000 miles, but all VERY easy highway miles) - and now on top of the chugging, I am getting a HUGE amount of dieseling when I come up to a stop sign. I have been doing a lot of reading about the Cam Phasers being a possible cause of this.

A second question based on that - could the two be related or am I just having a huge amount of bad luck this week?

 

Exactly what did you use for oil and filter?

 

Im having the same problem with mine and it doesnt have as many miles as yours but its a year older hopefully with new filters nd plug it will stop if not i will check the other stuff yall said

 

Im having the same problem with mine and it doesnt have as many miles as yours but its a year older hopefully with new filters nd plug it will stop if not i will check the other stuff yall said

 

Also sounds like torque converter symptoms. Does the engine sound like its stalling or is the truck just shaking.

 

Well mine just shakes no stalling

 

i am having a simular problem. Crusing at a set speed for example, 50 mph...if i lightly increase gas pedal i get a hesitation/chuggin fleeing in the truck and even my wife can feel it as a passanger. It only last for a few seconds or so...can immediatley stop it or keep it from happening if i get on the pedal a little more or even hammer on it. Not sure what's causing it. I am also having a problem with my gas gauge registering properly, example, needle goes past "F" when full and tank is almost empty when gauge is around 1/4 tank. Taking into the dealer in the next few days for both problems, may even be related or not. Still under the extended warranty. I'll let ya know what they tell me if they are able to correct it or not. Mine in 07 Screw FX4 with around 64-65k on it.