Rough running 5.4
#1
Rough running 5.4
Hi guys. I've got a problem with my '99 5.4 w/124000. Every once in awhile the truck will run rough when it's idling or shifting into OD. I replaced all of the plugs at about 90,000 when it was really running rough. I got check engine diagnostic codes then, for COPS, but not now. Changing the spark plugs took care of it the last time. I would think I would get a COP code if that was the problem. Any ideas? Thanks.
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westflgator
1997 - 2003 F150
5
11-30-2011 11:06 AM
Kurts74ford
Modular V8 (4.6L, 5.4L)
26
01-09-2011 10:58 AM