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Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Dodge
Satisfied Customers: 15121
Experience:  30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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1998 dodge ram diesel revs when started has only happened on

Customer Question

1998 dodge ram diesel revs when started has only happened on cold start so far. on about the third attempt it starts normaly
Submitted: 1 year ago.
Category: Dodge
Customer: replied 1 year ago.
this truck was used every day for years now it only used 2 or 3 days a week
Expert:  Tim Mohr replied 1 year ago.

Hi, my name is ***** ***** this have the P pump engine or the VP44?

Customer: replied 1 year ago.
don't know how can I tell?
Expert:  Tim Mohr replied 1 year ago.

can you give me the 8th digit of the vin number?

Customer: replied 1 year ago.
going to get it. both low and high pressure pumps were replaced less than 2 years ago
Customer: replied 1 year ago.
8th # ***** *****
Expert:  Tim Mohr replied 1 year ago.

ok, this is the p pump engne, and when they rev high on first starts, it is caused by bad injetion pump, everything needed to run and control idle is inside the injection pump, you will need to replace it to fix this,Tim

Customer: replied 1 year ago.
thats the high pressure one right
Expert:  Tim Mohr replied 1 year ago.

Yes, it mounts to the driverside of the engine,Tim

Expert:  Tim Mohr replied 1 year ago.

If you need more help, then dont hesitate to ask, and please dont forget to rate me so I cn get credit for helping,Thanks,Tim

Customer: replied 1 year ago.
that's THE most expensive part what if that doesn't solve problem/
Expert:  Tim Mohr replied 1 year ago.

I twill solve it, on the pump engines, the injection pump controls everything, if the trottle cable is not stuck, then it can only be the injection pump, have you checked the throttle cacle at the injection pump, when its reving high?

Customer: replied 1 year ago.
I just pulled the paperwork on the pump and its a vp44 does this change anything?
Expert:  Tim Mohr replied 1 year ago.

the vp44 has the eighth vin digit as 6 not 1????

Expert:  Tim Mohr replied 1 year ago.

can you recheck the 8th vin digit again??

Customer: replied 1 year ago.
it is a 6 sorry I want counting the first digit because it doesn't look like a 1 or an I
Expert:  Tim Mohr replied 1 year ago.

ok, then we need to have the codes read from the computer, do you have a code rader?

Customer: replied 1 year ago.
no I dont
Expert:  Tim Mohr replied 1 year ago.

most parts houses will pull the codes for free, Autozone and Orielly do for sure, can you have the codes read?

Customer: replied 1 year ago.
will do
Expert:  Tim Mohr replied 1 year ago.

let me know,Tim

Customer: replied 1 year ago.
only code they got was an abs code 51 rear isolation valve solinoid
Expert:  Tim Mohr replied 1 year ago.

this should give a P code, like a P0216 or such, this vehicle does not give 2 digit codes, where did you go to scan it?

Customer: replied 1 year ago.
oreilys
Expert:  Tim Mohr replied 1 year ago.

tht is not a valid code for this year, it should read a 4 digit P code,Tim

Customer: replied 1 year ago.
ok will take it somewhere else tomorrow
Expert:  Tim Mohr replied 1 year ago.

let me know,Tim

Customer: replied 1 year ago.
Went to auto zone they aren't getting any codes
Expert:  Tim Mohr replied 1 year ago.

then without any codes, I would just be guessing, I will opt out and see if another expert has any pther ideas,Tim

Customer: replied 1 year ago.
I just realized that im not getting a wait to start light anymore. Does that help?