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  1. General 6.0L Discussion
    I need input on an issue with my 2004 6.0L. It is making an odd revving sound when returning to idle. This issue us accompanied by a surging/loss of power. the IPR during these times is in the mid-30% range while the ICP is around 600-800psi. I do not notice any smoke when this is happening...
  2. 6.0 Motor problems
    2003 6.0L Excursion, 198k, new engine wiring har[email protected], (Bulletproof EGR, ARP Studs, New Oil Cooler at about 110k) New HPOP @ 120k, new injectors @160k, Banks 6 gun, Big Hoss exhaust kit, Air intake. In CA so still running EGR. Otherwise stock. Running and working great, then rough idle...
  3. 94-98 7.3L Problem Forum
    I want to be thorough to get the best help I can, so this post is lengthy. Over Xmas 2019 I was given a ts chip and decided to try it out. However In February I began to have idle issues on colder days. The truck would start with no problem but a few blocks down the road it would quit and Id...
  4. 99-03 7.3L Powerstroke Problems
    I have an 01 7.3 I pulled the hpop due to a leak and when I put it back in truck cranked wouldn’t start. I have wts light. Ipr duty cycle went to 98% so I bought a new one. Still nothing icp is unplugged. I tried 3 different cps and I still can’t get it going. Starting to loose patients I’m not...
  5. 6.0L Problems Forum
    Hey there! So I have a 2003 F250 that hasn't been running smoothly lately. The main issue is when I'm idling, usually in drive but occasionally while parked too, the truck seems to miss/stumble a little bit. It'll sorta bog down into the lower RPMs and act like it wants to die. So the RPMs seem...
  6. 99-03 7.3 Motor Problems
    Hi All! Been reading great stuff on this site for years. First time i speak up! Stranded after driving my 99 7.3 8 hours. I ran low on fuel pressure all of a sudden. Got towed to a Hotel. I have Wife and 3 kids with me and it's around 0 to 15 during the day. i Replaced the IPR to get pressure...
  7. 94-98 7.3L Problem Forum
    Experienced Diagnoticians, My 97 7.3 with 225k miles has started to idle roughly and run roughly until fully warmed up and, then sometimes even after its warmed up. No surprise, its winter time. It is particularly noticable when engine is still cold and going up a hill. Sometimes it will even...
  8. 6.0L Problems Forum
    Right to the point then I'll paint the picture. 2007 F250 No injector clatter BUT does start then runs really really rough KOEO all sensors perfect except icp, voltage is .33 check, and icp is 90psi?? Once it starts icp shoots to 3400 and ipr to 55ish runs like crap can't find idle eventually...
  9. 94-98 7.3 Motor Problems
    I had a leaking ICP that lead me to clean and reseal the fuel filter housing ( tablespoons of crap in the bottom of the bowl) replace the rubber fuel lines, prefilter and reseal the HPOP as a preemptive maintenance along with replacing the ICP o-ring. The ICP wasn't even hand tight when I found...
  10. 6.0 Motor problems
    My 2007 6.0 acted like it's running out of gas. Then ides fine. You can get it through the sputtering and nail it and it runs fine at higher idle speeds. Finally it would not start. I changed the ICP sensor and it started and ran fine for 30 minutes of driving. It was a cheap icp...so I bought a...
  11. 99-03 7.3L Powerstroke Problems
    I haven't posted in a while as my truck has been purring like a kitten. In fact, it was purring like a kitten at 75mph down the highway the other day (and I said, man, this thing is running GREAT!), seconds later, it coughed, sputtered, then ran again, then coughed, sputtered, ran, then died as...
  12. 6.0 Motor problems
    I have a 2005 6.0. It will crank up just fine even in cold temperatures. It will idle fine for about 5 minutes then die and not restart. As it idles the ICP will start at 1300 to 1400 and gradually it will drop to low 500's then it will die. It does not drop below the low 500's before it dies...
  13. General 6.0L Discussion
    been searching the threads; can't find an answer. 2007 F250 6.0L with 138k on the ODO. was starting to take longer and longer to kickover, so I benched it and began working on the engine. Found one of the dummy plugs to have an O-ring that was starting to fail. Figured while I was in there...
  14. 99-03 7.3 Motor Problems
    Hey everyone. Background: 99 F250 with the 7.3 Intercooled, 207,xxx miles. TL;DR: Truck cranks, no smoke, no fire. ICP, IPR, and CPS all good. Glow Plugs and GPR good. Lift pump good. What else is there? Before all this work, the truck had major issues starting, it would fire on a few...
  15. 6.0L Problems Forum
    I recently bought a 2004 6.0 extended cab truck. It has 223,000 miles on it and has been running great. Bought it here in Arkansas where I live and recently drove it to Texas and back after having just put some Hot Shot oil treatment cleaner in it. I ran it the 1000 miles as it suggests...
  16. 99-03 7.3 Motor Problems
    Hello all, I have an 01 with about 294K miles on original injectors, HPOP, IPR. Just recently replaced ICP (was leaking). Under normal acceleration, no trailer or heavy load the engine will sound normal then sometimes, (not always) it is like someone turned down the volume or attenuated the...
  17. 94-98 7.3L Problem Forum
    Hello, I have a 1996 f250 7.3 with a zf5. I just recently got running. Took it down the highway for the first time last night. The truck has a efuel system I made, runs at about 65 psi. New dark blue cps. New fuel selector valve (Fsv2a) It's cold up here, maybe 20 degrees, I'm running 10w-30...
  18. 6.0 Motor problems
    2006 F350 6.0 (Manual transmission) 125000 miles all original replaced FICM about 2 years ago. Driving to work one morning truck stalled going down the road, now cranks but no start. Using the autozone "scangauge X" I have the following... Key on engine off... SYC = 0 FMP = 47.0 IPR = 14.8 ICP...
  19. 6.0 Motor problems
    Hey guys! I have an 04 6.0 with 277k on her. Oil cooler upgrade, egr delete, sct tuner on economy. New injectors less than 15k on them same with hpop. Just got out of the shop last week because it wouldn't start due to ICP sensor being bad, at the time they did IPR as well. Anyways, a few days...
  20. 6.0L Problems Forum
    Hey gents, I'm new to the diesel game, but not to the shop. Need help deciding what to attack first. I have a 2004 6.0 f250 (145k)that runs and drives great despite a p2285 code (low ICP voltage). The engine is stock with no upgrades that I know of. SO... I need to do the ICP sensor, and...
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