Hello.
I have a 74 Challenger with a 340 in it. When the car is at idle, it vibrates, hesitates when starting from a stop, vibrates a lot slow speed, and at highway speeds it vibrates at around 60mph. It seems to cycle through.....vibrates, smooth, vibrates. I'm not sure how else to describe it. Could it be a misfire with the spark plugs? A short was repaired a few months ago in the steering column. I was told only 7 volts was getting to the coil. Was running better for a bit, but the vibration is still there. I appreciate the help I get here. Thanks.
I have a 74 Challenger with a 340 in it. When the car is at idle, it vibrates, hesitates when starting from a stop, vibrates a lot slow speed, and at highway speeds it vibrates at around 60mph. It seems to cycle through.....vibrates, smooth, vibrates. I'm not sure how else to describe it. Could it be a misfire with the spark plugs? A short was repaired a few months ago in the steering column. I was told only 7 volts was getting to the coil. Was running better for a bit, but the vibration is still there. I appreciate the help I get here. Thanks.