Hesitation
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Senior User
Joined: Mar 2003
Posts: 194
Likes: 0
From: Stafford Springs,Ct
Hesitation
My 90 bronco has a very annoying hesitation. It happens around 1500 to 2000 rpm's but not all the time.It is most of the time but not all the time. I have changed the air &fuel filter hoping for a quick fix but no luck. Planning to change plugs,wires,cap & rotor but half to finish the brakes on the truck first. Under hard acceration it's fine it's happens under normal driving or cruising. It sometimes even causes it to buck. Any suggestions?
Fleet Mechanic
Joined: Aug 2001
Posts: 1,526
Likes: 0
From: Round Rock, TX
Do the wires, plugs, cap, and rotor and see how it behaves. Could be bad wires. Mine did the same thing when the EGR valve went out, but you should start with the basics. You should also try pulling the codes:
http://www.broncodata.com/tech/codes.htm
http://www.broncodata.com/tech/codes.htm
