I am losing power when towing.When engine is cold it runs alright,after towing for awhile I'm losing power.Accelerator bottoms out at 75mph,then after stopping,accelerator not responding correctly.






2001 3500 Quad Cab,24v,auto,edge ez,4" magnaflo,high flo air filter,4.10 rear end.

 

Turn your keyswitch on-off-on-off-on and see what your odometer displays.
Post any codes displayed and we'll discuss it. Fuel pressure?
You didn't list your lift pump fuel pressure guage on your signature

 

I turned switch on /off/on/off.There are no codes. My fuel pressure is 15 idle & 12 towing.

 

That 3rd ON of the keyswitch is necessary.
The accelerator pedal issue could be an APPS deal but I didn't think the motor temp would affect that. Have you tried resetting it?

 

My bad on the 3RD on in my post,I did not waight long enough
Codes 1693 & 0216.

 

The 0216 is an injector pump timing code sometimes reportedly set because of a low lift pump pressure event and sometimes the injector pump on it's way out. Seems like I've read where the lift pump pressure makes the timing thing work.
The 1693 basically anounces the presence of a trouble code.
http://www.troublecodes.net/chrysler/
It kinda looks like the one we all are dreading

 

Engine has 78,000 miles will dealer replace it.

 

Lift pump and injection pump are both covered for 100,000 miles, unless you're over the 5 year mark.


phox

 

Could it be the map sensor.

 

It would have to be another problem in addition to the Injector Pump Timing issue...the P0216 kinda tells the story.

 

New VP44 dealer installed under warranty.All it cost me was a reflash.
Thanks for the help finding codes.