Everything time i hit the brakes or turn on the head lights, it’s kill in the motor. Is it a ground? Or why would it draw so much power that it trys to kill the motor?
Most likely your vacuum power brake booster is bad and there is a vacuum leak in your headlight door actuator system. When you step on brakes or turn on headlights you are introducing a huge vacuum leak which kills engine.
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Thank you very much
These folks do a fine job rebuilding boosters for our Cougars. I have been using them for 25 years. https://www.powerbrakebooster.com/
The question is does it have a vacuum booster?
Mine does not. 4 drum brakes.
I would think he needs a vacuum gauge and start there while in the garage.
The rest of you can help him with this.
Welcome!
Sry to ask again. But i replaced the brake booster and still dose it. I have the head light door actuators un hooked, do they need hooked up ? Or can they be bypassed. Cuz i hitbthe brakes and still dies