powerstroke not running

Reply Subscribe

Thread Tools

Search this Thread

Feb 26, 2009 | 05:14 PM

snowsf250

Thread Starter

New User

Joined: Feb 2009

Posts: 10

Likes: 0

powerstroke not running

hey guys a friend of mine bough a 1996 powerstroke diesel a couple months ago. it didnt run when he bought it but the guy said that it had algea in the tank. we cleaned the tank and lines cleaned the injecters it has good compressin we had it running but it was only firering on 4cylinders on the one side. we also put a new oil pressure regulater on it do you guys no whats wrong. the truck has 300,000 miles on it. we ran out of ideas. any suggestions would be alot of help. thanxs

Feb 26, 2009 | 06:02 PM

Welk49

Senior User

Joined: May 2008

Posts: 484

Likes: 0

From: Osceola, IN

Check the wiring harness for the injectors on both the inside and outside of the valve covers

Feb 26, 2009 | 06:20 PM

snowsf250

Thread Starter

New User

Joined: Feb 2009

Posts: 10

Likes: 0

k thanks anything else if that might not work?

Feb 26, 2009 | 08:07 PM

Welk49

Senior User

Joined: May 2008

Posts: 484

Likes: 0

From: Osceola, IN

If it cranks watch the tach to see if it moves, if not replace the CPS

Feb 26, 2009 | 08:30 PM

97biostroke

Senior User

Joined: Nov 2008

Posts: 460

Likes: 0

From: Gifford, IL

My truck was only running on four cylinders awhile back. Turned out to be the wiring to the injectors.

Feb 26, 2009 | 08:52 PM

tjbeggs

Post Fiend

Joined: Apr 2004

Posts: 12,835

Likes: 3

From: Silver Lake Dunes, MI

Yep you either have an injector wiring issue or the IDM is bad.

Feb 27, 2009 | 07:41 PM

snowsf250

Thread Starter

New User

Joined: Feb 2009

Posts: 10

Likes: 0

we checked the wiring and we replaced it so i dont think thats the problem but was is the idm or the cps? what do they do? and how much are they?

Trending Topics

7.3 or/vs 6.7

24

791
My 1976 F-250

3.9k

263.5k
Header tube temp question.

17

267
This is prolly a 1 page thread at most

110.3k

6M
Another Crank no start -- sorry

27

522

Feb 28, 2009 | 08:00 AM

jeep1947

Senior User

Joined: Oct 2005

Posts: 400

Likes: 0

From: Jeffersonville IN

CPS is the cam position sensor it is cheap and easy to change about $25 at autozone or napa. IDM is the Injector Drive Module it take the info from the Engine Control Moniter (computer) and tells the injectors when to fire. Expensive from dealer but you can usually find one on ebay for a couple hundred dollars. It is located on the drivers side inner fender, you may just unplug it 5/16" socket check pins and plug it back in. Hope this helps.