Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
New showcase items
New showcase comments
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Showcase
New items
New comments
Latest content
Latest reviews
Latest updates
Search showcase
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Power Strokes
94-97 Tech
Rough running 7.3 and lacking power
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
[QUOTE="blaze42069, post: 1371780, member: 1114"] So my 97 has been rough running last 2 yrs and it's getting worse. I have AE and have run the typical tests. I buzzed test injectors and all sounded the same. I just changed oil with no change I used Rotella 15w40. I failed the cylinder contribution test on cylinders 1,2,6+8 and got a 1298 idm fault as I had a modified idm. I removed and put in a 2002 idm and the 1298 went away and I failed 1,2+8. I ohmed out the injector harness and had no issues there. I know this engine has low compression in some cylinders and has bad blowby. But if I had a mechanical issue I would have a rough running engine all the time. Right? The truck starts quick and strong everytime. I also have an aeroforce scan gauge and when I start the truck it works perfectly, then I drive the truck and the rough idle comes in and the gauge starts getting lines in it to the point I can't read it anymore. I contacted aeroforce and they said I have an electrical interference somewhere to cause their gauge to do this. I do get occasional check engine light that goes away on its own and can get no codes with the AE. It rough runs with and without the check engine light on I do still see codes from my mods. Ebpv etc. I do not have the 50 cent mod done on the uvch. Could the shaking engine cause these to loosen up when running yet still be connected when engine off. I did new uvch and gaskets 6 yrs ago when I installed rosewood 160cc remaned injectors and the 17 degree hpop hits 3000psi when I punch it. The icp sensor is 2yrs old and I rebuilt the ipr about 6 yrs ago. At idle the icp bounces 150 psi when running rough or not. I still have the old black cps. Any suggestions on anything else I can do with the AE? Thank you [/QUOTE]
Insert quotes…
Verification
Post reply
Random media
Latest posts
B
7.3 lift
Latest: Bmcgarvie
Today at 11:48 AM
7.3 Aftermarket
6.4L Ring End Gap
Latest: ncollins64
Thursday at 7:02 PM
6.4 Aftermarket
7.3 fan clutch noise
Latest: OBS-Addiction97
Thursday at 5:01 AM
6.0 Aftermarket
6
Why do 6.4 rocker arms wear out and 6.0s dont?
Latest: 6.0FinnaBlow
Wednesday at 9:00 PM
6.4 Tech
T
Mini Max Tuning
Latest: tom6mn
Wednesday at 4:23 PM
6.7 Tuning
Members online
fishinmachine
Forums
Power Strokes
94-97 Tech
Rough running 7.3 and lacking power
Top