Why doesn't my Jeep run smooth?

J

JoshuaD

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1999 Jeep Cherokee (6cy / 4.0) The computer code says 6th cylinder misfire and throttle position sensor. It feels like it's bucking at light acceleration and just running rough. I replaced all plugs, wires, cap, rotor and coil and #6 is getting good spark. If it is just an injector, why does the throttle position sensor code come up? if it is the throttle position sensor, why does only #6 misfire?
 
The throttle position sensor lets the computer know how much fuel the engine needs depending where the throttle is set at,in saying that I would look for a possible bad injector.You might try having a garage hook up the injector cleaning stuff to that #6 injector first and see if that helps.
 
Sounds like the Jeep has fallen out of alignment, that or rocks are stuck between the crevices of the tires causing it to feel like its rocky when driving.
 
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