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Join Date: Apr 2010
Location: Alexander City
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Rev-x and FPR spring upgrade
Wall of Text warning!!!!
I wanted to share my experiences with these two products and hopefully add to the info available here in the org...
A little back ground... I have an 04.5 F250 CC KR with 129,000 miles... last spring I swapped the oil cooler and deleted the EGR and cleaned the turbo(stuck bad)... the truck ran great all summer and fall until it got cold (by cold I mean cold in Georgia, teens at most)... so I started plugging the truck in at night with a timer to get it warm enough to have heat when I left for work in the am... every morning the truck ran great... but, after sitting at work all day with highs in the 30's and 40's, I had some pretty bad cold idling issues so to kinda crutch it, I would go out about 15 minutes before time to leave and warm it up... it was always very grumpy, the truck started fine but would miss and skip and smoke lightly...
As spring approached, the temps during the day warmed up and I quit going out early and starting the truck as the enigne temps stayed in the 60's-70's... however, the bad cold idling issues remained even with engine temps in the 80's... I stopped by a buddies shop and he scanned the truck and told me I had a cylinder #7 contribution code...damn it... I jumped onto the interwebnets and started searching... very depressing, it needs injectors I said... crap... 2 grand, damn it... oh well, suck it up and press on I said... wifey pissed...
Then I learned of a product called Rev-x... I ordered, poured it into my fresh 15/40 dino oil and prayed... well... the stuff just plain works... cold idle is perfect, engine is quieter, and I think it runs smoother(subjective of course)... and so far, no more injector codes...
If it lasts, I'm gonna use it for at least every other OCI... 70 bucks 2 times a year beats the heck out of 2 grand at least until I have a real failure... wifey is pleased...
Now the FPR kit... I don't have a gauge for fuel pressure... but mine was low, how do I know you ask?... it's like a different truck, more low end, more mid range, more power everywhere... hopefully, I caught the pressure issue before much damage was done... it runs freakin great now... better than ever... I think that if you have a PS, you need this kit, especially if you have some miles on it... just do it... it works!
Other than the EGR delete, the FPR and Rev-x have been, to me, the best things I could have done for the truck to help it to run better... I'm blown away by the improvement... it's the best 140 bucks I could have spent on the truck bar none...
Sorry for the wall of text, I just wanted to hopefully add something to the org since I've learned so much reading here...
2004 F250 KR 4X4 6.0
2002 Z06 Corvette
2013 Jeep Wrangler