98 f150 5.4 stutters at high rpm
03-08-2010, 08:45 PM
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98 f150 5.4 stutters at high rpm
Hey guys...just browsed and joined your forum...need confirmation on a stuttering problem...
1998 F150 ext cab, 198K, 5.4, never changed plugs! Stutters uphill when it kicks down to passing gear..around 3k rpm...runs great flat out, but has the problem on the hills when she hits over 3000 rpm...
I'm thinking cop, but no codes flashed yet...reckon it's time for new cops and plugs???
Any input appreciated!
1998 F150 ext cab, 198K, 5.4, never changed plugs! Stutters uphill when it kicks down to passing gear..around 3k rpm...runs great flat out, but has the problem on the hills when she hits over 3000 rpm...
I'm thinking cop, but no codes flashed yet...reckon it's time for new cops and plugs???
Any input appreciated!
