1993 Ford Ranger Making Noise - General


Question: When vehicle is cold it makes a buzzing noise and the foot pedal catches when accelerating. It happens within seconds after you first start accelerating. 1993 Ford Ranger S/Cab 4x4 4.0L V6 automatic

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Technican: When you say the gas pedal sticks, do you mean- 1. The pedal itself binds and sticks at a certain point? OR 2. The engine rpms don't want to drop back down once you begin accelerating?
Owner: As you're accelerating the pedal catches at the exact same time the buzzing noise happens. I automatically take my foot off the pedal when this happens and then press down again and it's fine. It started out doing it only once, yesterday it did it 4-5 times in succession within a city block and then it didn't happen again.
Technican: Sorry for the delay, Do you get a check engine light during this period? (while the engine is running)
Owner: No light. I think we may have figured it out. I will see if it happens today. We disconnected the cruise control.
Owner: OK, it wasn't the cruise control it did it again when I went to lunch. He had pulled the cruise control fuse and the wire under the hood. I would describe the catch now as a vibration that coincides with the buzzing noise. It's like stepping on something that is vibrating when the buzzing noise starts. If you would take an electric massager and stepping on it.
Technican: Do you actually feel the vibration when the buzzing noise starts? If so where, in the steering wheel, dash, floor board, etc?
Owner: Yes, the accelerator pedal feels like it is vibrating like a battery operated back massager while it is buzzing.
Technican: The vibration at the pedal must be telegraphing back through from somewhere else. Have you tried to open the hood and rev the engine and see if you can locate the problem this way. Be very careful around moving engine parts. Make sure the vehicle is in park and the e-brake is on or the wheels are sufficiently blocked. Let me know what you find. Do you have a repair manual for your car? If not there is probably a free one available online that I'll pass along...

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