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
6.0 Tech
6.0 random surging/motor dieing
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="jonnysteals, post: 697339, member: 795"] If some of you remember around 3 weeks ago i though I fixed this problem. here is whats the truck doing: Randomly and not often(2 in 3 weeks) the truck has issues when first starting. The two times that it happened it cold started fine then I drove the truck five minutes to run in and grab somethign quick and it wouldn't restart normally after that. What the symptoms are are it starts normally(2-3 secs) but sounds like its running on 2 cylinders. There is no turbo whistle at all and it will eventually stall out. The rpms are lower than normal and if you step on the throttle it does nothing as if the throttle isn't connected. Last night I idled like this for over 1 minute with me stepping on the throttle and then suddenly it smoothed out and the throttle was working again. The turbo started whistling and life was good. Also after it started the idle/run nromally itwas surging a bit. it was jumping around 1-200 rmps every so often. What I did to try and fix this problem one time this happened right when I was closing up my workshop. Luckily for me I had all my tools there and noticed the top fuel filter was dry. I put my spare fuel pump in and brand new fuel filters and everything seemed fine until last night. I also cleaned my air filter as well. I think this is fuel related so I just started using a new high volume fuel station as well. I also reset the fuel shutoff switch under the passenger kick panel. Fuel pressure gauge being installed tonight; scan gauge II was installed once I got home after the problems. My opinion on the problem: I don't think there is anything wrong with the motor but its fuel related. It sounds to me like the truck doesn't have enough fuel pressure and cant run correctly. I think the rmp's surging is either the ICP bad(don't think so) or that my egr is dirty(likely 5 years old). I will clean the egr valve and the boost tube this weekend. I don't think its a hpop or lpop because it always starts and the oil pressure gauge on the dash always moves. Its more of a staying running problem not a starting problem. It always seems to go away and run fine after a bit. The ficm is 3 years old and always seems to have good volts(never under 48). I got my Scan Gauge II in the mail last night. After I made it home after getting the truck started I monitored some stuff. Unfortunately this was after the truck acted up but I got some measurements. ICP- ICP pressure ICV- ICP voltage IPR-IPR duty cycle % FMP- FICM volts First started this morning ICV-1.23 ICP-1000 IPR-25.7 FMP-48.0 Ran 5 minutes to get coffee andlet idle 10 additonal mintues ICV-.93 IPR 19.0 ICP-723 FMP-48.5 WOT(20 minute run time) ICP-4044 ICV-4.33 IPR-77.6 Cruise at 65 mph ICV-2.09-2.26 ICP-1822 IPR-43.7 Idle after driving to work(45+ min runtime) ICV-.89 FMP-48.5 ICP-670 IPR-18.2 Any help is appreciated. I don;t want to throw parts at this thing. I can look at any sensor/value you want with my scan gauge. Thanks guys [/QUOTE]
Insert quotes…
Verification
Post reply
Random media
Latest posts
7.3 lift
Latest: Charles
Today at 7:05 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
ToMang07
6pointzero
Forums
Power Strokes
6.0 Tech
6.0 random surging/motor dieing
Top