rough idle and slow rev..

screamin'6OH · #1 (**permalink**) 10-08-2012, 01:39 PM

Alright guys, be patient.. I am a total noob. I have an '04 6.0 and it has 108,xxx miles. when I start it, it idles very rough.. when I try to rev it in park, the rpms rise very slowly!! Im not sure what to do. I checked the FICM and it read 46.5 volts and I heard it was supposed it be at 48.0 no matter what! Any advice would be greatly appreciated...

John

srjd · #2 (**permalink**) 10-08-2012, 03:27 PM

You may get better help in the 6.0 section. Sorry I couldn't be more help

6.0f250firstcar · #3 (**permalink**) 10-08-2012, 04:49 PM

Yeah post this in the 6.0 section but to me it sounds like your FICM is going. Can't say for the slow revving though.

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