Why is my 93 Lincoln Town Car vibrating and shaking when i accelerate?

Answer 1

ENGINE PERFORMANCE ISSUESThere could be many causes for the "...vibrating and shaking when I accelerate." However, without personally doing a hands on troubleshooting of your vehicle no one here can tell you what the specific cause is, or where to find it.

Based on the described symptoms, I suspect that your vehicle is in serious need of a full tuneup, including replacement of many of the performance and/or pollution control items like:

• fuel filters,
• air filters,
• spark plugs,
• spark plug wires, and
• many other items which IF not replaced, when they should have been, can contribute to performance failures.

Usually, the failure to take care of only one or two of these items will not noticeably affect your vehicle's performance, BUT... the accumulated performance damage caused by several maintenance item deficiencies WILL result in severe performance problems such as you describe.

Study your Owner's Manual relating to performance issues, AND relating to the routine, scheduled maintenance tasks that should have been done, and then perform ALL of those prescribed maintenance tasks. I suspect that will resolve the "...vibrating and shaking..." issue.

IF all of these items are already currently up to date, then the problem will probably be a failure of an electrical or mechanical component.

IF you are capable of doing the routine scheduled tasks, then do it. IF NOT, then have it done by a qualified automotive technician.