cruisin studder step

stangz4life

Founding Member
Apr 8, 2002
155
0
16
tampa,fl
Ok here is the prob .i have a little surge or studder while i am at at a cruising speed (steady speed).doesnt happen at full throttle at all.just seams to like jerk a little when it is at a constant speed.it doesnt matter what rmp range it is in. i can be going 90 and it does it ..40 and it does it ..its driving me crazy! it started about a month ago .please help !! pulled codes with nothing also checked timing it is 10 d.:bang:


replaced items are as followed:

fuel filter
air filter
spark plugs(gapped correctly)
wires
cap/rotor
coil
followed by a full tank of 93 /with inj. cleaner (twice)

i just dont know what else to check i really do not want to bring it to anyone
 
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