1991 Mercury Topaz Starts Then Dies

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CHRIS_P
  • MEMBER
  • 2 POSTS
I own a 1991 Mercury topaz, 2.3L 4cly. The problem is when I go to start my car, it starts, idles for half a second then dies. I had mechanic look at it they were unsuccesfull in finding out what it was, they recommended replacing the computer (ECU). I replaced the ECU and had all the sensors checked,as well as the fuel pressure and vaccum leaks, but the problem still persists. I was wondering what I may be forgetting to check? Before the car got to this state the problem was that when I went to start my car it would start then die, then the next time I started it would be fine. This got worse over time. Any ideas would be great or things I can check would be very helpful.
Thanks,
Apr 16, 2006 at 10:17 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
You need an ignition module. I can't understnd why a mechanic couldn't find it. Classic Ford problem
Apr 16, 2006 at 1:24 PM
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CHRIS_P
  • MEMBER
  • 2 POSTS
Thanks for the quick response. I will let you know how this works out.
Apr 16, 2006 at 3:16 PM

Suggested Repair

Replace the ignition module, a common Ford failure that can cause the engine to start and then die.

Conversation Summary

A 1991 Mercury Topaz 2.3L starts, idles briefly, then dies. The issue began intermittently and worsened. An ECU replacement plus checks of sensors, fuel pressure, and vacuum leaks did not fix it. The expert says the ignition module is the likely cause and a classic Ford problem.

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