hello everybody i am new to this site i have read actually got alot of info from you guys when i first started putting mods on my truck, well now that they are all done i am having problems... this is what i have done to my truck (telling you this so i can find out if it is something i did or just some usual wear and tear).... To start off i have a 2004 ford f150 crewcab with 102,000 miles on it, within the last 3 months i have put a 2.5 leveling kit (which was there when i bought the truck 2 years ago) a 4 inch body lift, 35x12.50 tires with 18" rims, a cold air intake and a edge evolution programmer, i have stayed up on all the maintainance and lately i have been getting some rough vibration when i am driving it is when i am just coasting not gassing or breaking but if i am just coasting there is a vibration that comes from the front right area (like the tire area) of the truck... also my idle is low i am idling around 500 rmp when i first start the truck it has actually killed my truck a couple of times when i step on the gas, the other thing is that when i take off from a stop it is heavy to accelerate and you can hear the engine having trouble.... so to sum it all up i am hoping that someone or a couple of you guys out there have had the same problems and know what to do or have any ideas, would appreciate any advise...

PS... i haven't replaced the spark plugs yet cause i am scared of them seizing in there, anybody have trouble with those either? thanks again...

 

Sounds like something related to your plugs and coils. The cold air intake, as I have read, is not good for these trucks without a proper tune. I am not sure if the edge programer would classify as a proper tune. I have yet to do my plugs, and I'm at 85,000. I'm waiting on the day that it acts up, then I'll deal with it. The truck runs great as it sits.