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I need help!!!

allenhudson91

Member
Joined
July 11, 2009
Messages
24
Reaction score
0
City, State
Birmingham, Al
Year, Model & Trim Level
1993 4.0 XLT
My explorer is hesitating when i press the gas. If i barely hit the gas it runs fine, and if i press the gas nearly all the way it runs fine. I have changed my spark plugs, and the wires are fine. What could be wrong? Could it be my fuel pump?
 




mrboyle

I Drive By Brail
Moderator Emeritus
Joined
February 18, 1999
Messages
4,153
Reaction score
28
City, State
Montrose, CO
Year, Model & Trim Level
'95 Bronco '80 Toy
It could be many things. Fuel pump, Mass Air Flow Sensor, Fuel pressure regulator, throttle position sensor, etc... It is impossible to diagnose your problem without either being there, or having some more input from you're side. You need to start by cleaning the MAF. If that doesn't help, try testing the tps (use search feature to find out how). Keep moving down the line if you're problem still occurs. Have the fuel pressure tested, fuel pump flow, waveform and curent draw tested. Its going to be a process of elimination and unless you have the proper tools you may end up needing to take it to a professional to have it diagnosed.
 








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