Service Engine Soon just came on

JohnD · #1 05-23-2007, 01:17 PM

So I stopped at the store on my lunch hour, when I went to start the truck nothing happened, turned the key back and tried starting it again. The truck started right up but after a few miles the "server engine soon" light came on and the truck started running really rough - no power and it felt like it was misfiring. I pulled over, shut it off, and started it again - the light went out and it was running fine again - drove 5 miles back to work without any problems - any idea what might have caused this

Thanks
JD

Blue Mountain Raider · #2 05-23-2007, 01:27 PM

Quote:

Originally Posted by JohnD

no power and it felt like it was misfiring

that's probably what happened. get it checked asap

JohnD · #3 05-23-2007, 03:37 PM

This isn't good - I just checked the codes with the Peake tool and all but one cyclinder was misfiring - Strange part is it drove fine the 30 mile ride home - just cleared the code - but am concerned it might happen again

Zulu95 · #4 05-23-2007, 04:37 PM

How old? There were problems with some early coil packs.

alexz · #5 05-23-2007, 04:43 PM

If your truck if running XP, did you apply all the latest and greatest patches?

JohnD · #6 05-23-2007, 05:15 PM

It is a 2001 4.4 with 47,000 miles

Zulu95 · #7 05-23-2007, 05:23 PM

Possible it's the coil packs. Bavauto.com does a nice set or (of course) the dealer.

JohnD · #8 05-23-2007, 05:49 PM

If it were a constant misfire I would agree it is most likely the coil packs or plugs, but being that 6 out of 8 misfired at once, I am leaning towards some type of sensor of MAF - anyone else experience this problem?

JohnD · #9 05-24-2007, 07:30 PM

So 150 miles later and no problems what so ever - any idea what might have happened

Blue Mountain Raider · #10 05-24-2007, 10:43 PM

that's good that your car is fine now but i have no idea. i've never heard so many cylinders would misfire together. perhaps you should get it checked out just in case.