New owner here just bought a 2001 ram 5.9 magnum last week runs great once you get going. I live over a very steep hill when pulling out from the hill i have to hold it to the floor and it barely goes. On flat ground it goes a little sluggish till about 5 to 10 miles an hour then it will throw you back and go. Ive changed plugs, wires, cap, rotor, IAC,checked map, tbs, looked in tb some oil splatter from pcv changed that didnt see any pooling but couldnt see the corners. Thought maybe taking off in wrong gear but counted shifts 1 2 3 3L with od off so they are all there, punched cat. Im out of ideas help please.

 

Check engine lite on?

What size tires? Any idea what gears in the diff?

2 or 4 wheel drive?

Any history of major engine work??

Welcome to DF!

 

4wd 3.55 gears 285 70 16 tires engine repair history i dont know no lights

 

Basically 33's, and 3.55 gears... that's part of the problem....

Does it seem any better if you pull the shifter all the way down to first, and try and go?

 

No change when manually shifted

 

That's interesting..... Check the pcm for a sticker that says "authorized software update". It'll probably be hand written......

 

Does this happen every time or just first thing in the morning (thinking check valve delete)?

 

Happens all the time there is a sticker with a bar code that says authorized software update

 

[QUOTE=HeyYou;3315818]Basically 33's, and 3.55 gears... that's part of the problem....
QUOTE]


plus the death flash...