How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 47969
Experience:  16 years experience
Type Your Ford Question Here...
Chris (aka- Moose) is online now
A new question is answered every 9 seconds

1999 Ford Mustang 3.8L A/T - Car shakes like crazy in Park

Customer Question

1999 Ford Mustang 3.8L A/T - Car shakes like crazy in Park at idle. Gets worse at higher RPM's. Can't even drive it because it gets so bad going down the road. No CEL, no codes. Motor mounts all appear to be good. Replaced balancer, no change. Pulled transmission and inspected flexplate (weight is still there), bolted trans back up and ran engine with torque converter out, no change. Scratchin my head at this point. Has anyone else had this problem and solved it? Thanks.
Submitted: 2 years ago.
Category: Ford
Expert:  Chris (aka- Moose) replied 2 years ago.

Hello, I'm Chris. Thanks for seeking us for help.

The things which come to mind are a misfire, motor mount, or broken balance shaft.

While running at idle and misfiring. Unplug plug wires one at a time and see if any one removed makes it run the same. If so then thats a sign that cylinder is not sparking, or getting fuel, or has compression or valve issues.

You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.

Thanks Chris