When diving under normal conditions I somtimes lose my R.P.M gage and the truck loses power. Not enough that it quits running but noticable. THis causes the eng. light to come on. The dealer says its the inj. pump at $2,500. my question is would the truck run with a bad pump. Second question is after replacing the lift pump if all air is not bled out of system do you think I would exp. the same problem.

 

what codes are you getting?

 

P0216 and 1693, right?




The inj. pump and lift pump can be had for much less than $2,500. More like $1,400 total.

 

you can find a remaned one for 1100 and then a lift for 110

but definitely go get the codes pulled

 

And, no.

Not for an extended peroid. It would stumble, but eventually replace all the air in the lines with fuel.


Did you just replace the LP?


Cycle your key (on, off, on, off, on) NOT start, just "on".

The codes will display in the odometer window followed by "P done".

 

The tachometer intermittantly cutting out on an '01 would be the camshaft position sensor. Mine was replaced under warranty. Since the computer reads engine rpm off of this sensor also, it may addtionally be causing your loss of power problem.

 

Hey P.J yes just did the lp. but eng. light was on so i got the dealer to clear the codes . still had the lake of power at times. so i went to clear the codes again and he came back with p0215,p1689,p0341.the original code came back as cam shaft sen.

 

P0215 - Fuel Injection Pump Control Circuit

P1689 - No Communication Between ECM & Injection Pump Module

P0341 - Camshaft Position Sensor Signal

hmmm....

 

first time to reset eng. light came back cam shaft sen. drove for a day . light came back this time with the three codes . cam shaft made sence to me . but now he says inj. pump replace first and that the cam sen. is in the inj.pump.

 

cam sensor is below the injection pump. Fun one to get too.

 

Thanks I think I`ll try that first. do you know what one is worth?

 

Id start with camshaft sensor with the codes you have that 1 sensor could cause all them codes

 

CPM (camshaft position sensor) Cummins # 4921597
About $40.00 from cummins About double the price from dealer.