08screwCA

Just picked up an edge evolution today. Trucks had a bit of rough idle prior. With the monitoring ability my rpm at idle jumps between 650-675 ish. Also monitoring variable cam timing which goes from 0-1 when the idle is rough. Any ideas? Cam phasers vcts (revised part #'s) timing chain/guides all done motorcraft through ford about 10 months ago.

dnlow

I recently cleaned the throttle body on my 2005 5.4L and it really helped to smooth out a minor rough idle. It was fairly clean and I was surprised how much better it was. Just an idea since it is something that is easy to do and just cost $5, so if it did not help you would not be out much.

08screwCA

Ok ill try that first thanks man

IceFishinFool

Clean your maf sensor too with maf cleaner. Helps a lot also

Especial86

iTrader: (1)

If all else fails change your oil to 5w-30. This will help if the rough idle is oil pressure/VCT related... The VCT solenoids may also need to be cleaned due to debris on the screens..

08screwCA

Cleaned after that short of a time? Mines an 08 with brand new vcts last September

Especial86

iTrader: (1)

Well I suggest you try the TB and MAF cleanings first. But yes, if all else fails change the oil to 5w-30...If that does not do it then pull the solenoids for and inspection and cleaning.. The slight variation in VCT at idle is what leads me to believe there may be a Hangup at the solenoids..

08screwCA

I've done the maf sensor and removed my entire throttle body. Seems to be a lot smoother at idle and on the gas. Also bought some weather stripping and re sealed my air box. Thanks