Questions and Answers

Dodge Daytona Has A Problem In Logic Q. Dear Vincent: I have an 1987 Dodge Daytona Pacifica; 2.2 liter turbo; manual transmission; 124,000 miles; fuel injected; P/S; A/C and cruise control. I have had this problem for the whole two years I have owned the car. When slamming the driver door, the hood, tapping the front driver or passenger front tire and when hitting bumps, my tach dips to 0 and back. This is followed by a buck.

It has gotten much worse in the past week. Now when the car just sits at idle it will rev up to 3,500 rpm and back to 0 and back to 3,500 and back to 0. When the car sometimes stalls after hitting a bump and doesn't come back to life, I have to pull over and wait a few minutes and restart.

It has gotten much worse in the past week. Now when the car just sits at idle it will rev up to 3,500 rpm and back to 0 and back to 3,500 and back to 0. When the car sometimes stalls after hitting a bump and doesn't come back to life, I have to pull over and wait a few minutes and restart.

If I don't wait a big puff of white smoke comes out the back when I try to start the car. When the tach dips to 0 the power loss light comes on until the engine gets back to the 3,500 rpms. Ironically the third mechanic I took it to said the logic module was bad.

Wouldn't slamming the passenger door set it off? It never did before. I went down there and tried to start my car and it wouldn't start. I tapped the logic module and then it started right up and continued the revving and dying. When it finally relaxed, I tapped the module again and the car died.

The module was replaced before I had the car because its dated 1999. Will a new logic module fix my problem? When the car sat for a few months it took a few weeks of driving for the problem to resurface. What's the chance of replacing the module with one from the factory and still having the problem?? Sorry for the lengthy e-mail and thank you for your time.

Thank you,
Lee

A. If tapping the logic module turns the car on and off, then I would say it's a pretty good bet a new one will fix the problem.

There's a fifty-fifty chance a new logic module will fix the problem. Either it will or it won't. You might consider getting one from a junk yard and trying it.