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James, Ford Technician
Category: Ford
Satisfied Customers: 3628
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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Ford Explorer: 2002 ford explorer. It reaches 35-40 mph and

Customer Question

2002 ford explorer. It reaches 35-40 mph and starts jerking until you slow down under 35-40 mph. Any idea?
Submitted: 1 year ago.
Category: Ford
Expert:  James replied 1 year ago.
Hello, how many miles are on this vehicle?
Customer: replied 1 year ago.
I don't know it's not lighting up on dash
Expert:  James replied 1 year ago.
at the speed your jerking happens. It sounds like the vehicle has a misfire. The misfire is going to be most likely cause by spark plugs and wires. I would replace the spark plugs, spark plug wires, and fuel filter. Disconnect the battery for 10 minutes and retest.