Need Help!

[MolonLabe78]

I’ve been experiencing a “bogging” sensation anytime I slightly press on the accelerator. It doesn’t matter what speed I’m going (taking off or cruising on highway) and it doesn’t do it when I give it more throttle....and the truck idles fine.
To try and fix the problem I’ve:
Changed the air filter
Cleaned the throttle body
Changed all the plugs and coils
Changed the MAP sensor
Cleaned the intake manifold temp sensor.....
And nothing has helped, I don’t know what else I should be looking for ....like with the injectors or another fuel issue but since it only has an issue during low demand I didn’t think that could be it.

Any suggestions?

2008 Ram 1500 5.7l Hemi
123k miles
MBRP 3” cat back exhaust

 

[SYKRAMMAN]

Maybe something with the drive by wire system? It definitely sounds electrical. But I could be wrong. Does it throw any codes? Get ahold of a scanner and preform some live data runs to see what all is going on with sensors and such. Have you cleaned or replaced the egr valve?

 

[MADDOG]

It could be a dirty EGR valve and/or a clogged PCV valve.

I'd replace both if that hasn't been done in a while given the miles on your truck.

 

[RonJon '06]

^^ Agree on the EGR valve. Have you tried deativating the MDS by pressing the tow/haul button? Another thing to consider is that the opened up exhaust is good for high rpm performance but hurts your low end torque.