Hey fellow 6.4 owners,
I have just put a lot of work and money into my 2008 6.4 power stroke. (155k miles). NOW, the engine has a intermittent skip every 20-30 seconds when the AC is turned on. AND IT BOTHERS THE #### OUTTA ME.
My diesel tech has ran a contribution test and it doesn't show any injectors dropping out. It just shows a wave displaying across the screen across all when it "Skips". A compression test was done also and passed. My fuel pressure is showing 5,500psi at idle. NO codes are shown. The truck runs great once your on the road.
Why would the AC cause this somewhat power imbalance and engine idle skip with the AC on? Anyone else experience this?
Recent mods in the past 2 months:
1. New fan clutch
2. Whole new AC system.
3. New Up-pipes. And CAC Pipes.
4. New exhaust header manifolds. 4" turbo downpipe.
5. NEW FORD PCM.
6. Replaced the old H&S tune with new SCT GTX monitor.
Truck is already has full EGR delete. Straight pipe exhaust and cold air intake. with the new SCT tunes.
I have just put a lot of work and money into my 2008 6.4 power stroke. (155k miles). NOW, the engine has a intermittent skip every 20-30 seconds when the AC is turned on. AND IT BOTHERS THE #### OUTTA ME.
My diesel tech has ran a contribution test and it doesn't show any injectors dropping out. It just shows a wave displaying across the screen across all when it "Skips". A compression test was done also and passed. My fuel pressure is showing 5,500psi at idle. NO codes are shown. The truck runs great once your on the road.
Why would the AC cause this somewhat power imbalance and engine idle skip with the AC on? Anyone else experience this?
Recent mods in the past 2 months:
1. New fan clutch
2. Whole new AC system.
3. New Up-pipes. And CAC Pipes.
4. New exhaust header manifolds. 4" turbo downpipe.
5. NEW FORD PCM.
6. Replaced the old H&S tune with new SCT GTX monitor.
Truck is already has full EGR delete. Straight pipe exhaust and cold air intake. with the new SCT tunes.