ENGINE BUCKING/LURCHING

1999 Ford Explorer

Tiny

jeffduty

August, 28, 2013 AT 5:40 PM

I have a 1999 ford explorer, 4.0 v-6 sohc, a/t. The enginge bucks/lurches when a load is on it, like going up a hill. This happens between 50-60mph. If I kick the pedal to the floor, and release, it seems fine. I have replaced the i.A, c. Valve, spark plugs, plug wires, air filter, fuel filter, throttle control, upper and lower intake gaskets, and the m.A. F. Sensor. No c.E. L. Lights come on. What can I try next to fix this annoying problem? Thanks, and have a great day!

FOUND 880 RELATED QUESTIONS

1 Answer

Tiny

Jacobandnickolas

August, 28, 2013 AT 5:47 PM

Have you checked fuel pump pressure to make sure it is within the manufacturer's specs?

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