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K. Wiggins
K. Wiggins, Classic Car Mechanic
Category: Classic Car
Satisfied Customers: 2702
Experience:  AA in Auto Tech, Classic car restorer and enthusiast
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I have a 1979 Mercury Cougar when trying to put it in gear

Customer Question

I have a 1979 Mercury Cougar when trying to put it in gear car cuts off can you help. It's like when you put it in and drive it loses all power
Submitted: 1 year ago.
Category: Classic Car
Expert:  K. Wiggins replied 1 year ago.

Hello, have you checked the ignition timing and if so what was it set at?

Customer: replied 1 year ago.
I have not
Expert:  K. Wiggins replied 1 year ago.

Thanks, that's going to be the first step is to make sure it's around 12 degrees before top dead center at idle with the vacuum advance unhooked and the line plugged. IF the timingiscorrect with the advance hooked back up you'll need to check that the timing does change when it's connected. It'svery likely the advance unit is not working causing it to die. let me know what you find and we can work further if needed.

Customer: replied 1 year ago.
Will try
Expert:  K. Wiggins replied 1 year ago.

Sounds good,look forwardto hearing from you

Customer: replied 1 year ago.
Will check in morning had to work doubles this weekend
Expert:  K. Wiggins replied 1 year ago.

Sounds good

Customer: replied 1 year ago.
I see a vacuum line that runs down to the transmission that's disconnected will that be the problem too check the timing is off by one degree
Expert:  K. Wiggins replied 1 year ago.

That's for the modulator valve for the transmission. If it is not connected it will cause shift problems aswell as it to possibly die when putting in gear due to low vacuum. Do you see where it goes?

Customer: replied 1 year ago.
but still cutting off do you think it might be a bad torque converter
Expert:  K. Wiggins replied 1 year ago.

It's very possible. If the ignition system and carb are in good shape and set properly that would be the next in line for causing this.

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