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Pete, Automotive Mechanic
Category: Transmissions
Satisfied Customers: 28794
Experience:  GM and Mercedes vehicle technician.17 years experience.
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Explorer sport: My ford explorer sport starts jerking at around

Customer Question

My ford explorer sport starts jerking at around 30mph
Submitted: 2 years ago.
Category: Transmissions
Expert:  Pete replied 2 years ago.
Hi,my name is ***** ***** I will be happy to try to assist you with this.I may need more information in some cases to help with answering your question.I apologize for any delay.
I have seen where high resistance in spark plug wires can cause this fault here when at higher speeds with the engine under load like this.If the plugs and plug wires have not been replaced at all on this mode I would replace the spark plugs and spark plug wires.
If these do not correct this fault here this may be an issue with the transmission torque converter lock up solenoid in the transmission itself.I have seen this solenoid act up and cause the torque converter to try and operate/lock up and kick in and out rapidly causing this feel as well so if plugs and wires do not correct this fault I would have the transmission checked into as the cause.
Thanks Pete