Engine dies after just a couple of minutes

Tiny
CS8698
  • MEMBER
  • 1994 PLYMOUTH ACCLAIM
  • V6
  • FWD
  • AUTOMATIC
  • 85,000 MILES
After car starts, but the engine will die after about two to three minutes.
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Saturday, November 12th, 2016 AT 7:05 AM

3 Replies

Tiny
CARADIODOC
  • EXPERT
Would you please include some details or history? Fortunately I can figure out that you have a 3.0L engine. Two engines were available and they have very different ignition systems. Have you checked for spark? Fuel pressure? Diagnostic fault codes?
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Saturday, November 12th, 2016 AT 8:54 AM
Tiny
CS8698
  • MEMBER
I have not check any of these you mentioned. One mechanic suggested it the waste fuel pump, but the car would not make it to his shop.
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Saturday, November 12th, 2016 AT 9:01 AM
Tiny
CARADIODOC
  • EXPERT
The fuel pump is always a possibility, but history has shown that when Chrysler fuel pumps fail, they almost always fail to start up, leaving you stranded in your driveway or a parking lot. They rarely fail while you are driving. GM fuel pumps almost always start up okay, then fail when they get warm, letting you sit on the side of the road.

Do you indeed have a 3.0L engine? I have had a number of them, and have never had an ignition system problem. Your car was also available with the 2.5L four cylinder engine. Those had a very common problem that resulted in stalling after the engine warmed up. It was a very easy fix.

To start, Chrysler made reading the diagnostic fault codes yourself much easier than any other manufacturer. Cycle the ignition switch from "off" to "run" three times within five seconds without cranking the engine, leave it in "run", then count the flashes of the Check Engine light. You will get one or more flashes for the first digit of the code, a short pause, then a series of flashes for the second digit. After a longer pause, the next code will flash the same way. The last code will be code 55 which just means it is done. If you think you may have miscounted, turn the ignition switch off and back on once to repeat the flashes.

Very often there is not enough time to set a fault code related to this problem while the stalled engine is coasting to a stop. Instead, we need to determine if the automatic shutdown (ASD) relay is turning on. If you want to check that yourself, you will need a test light. I will explain what to look for. If that relay does not turn on while you are cranking the engine, you wont have spark or fuel injector pulses. The fuel pump wont be running either, but it is important to not get hung up on the first thing you find missing.
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Saturday, November 12th, 2016 AT 9:39 AM

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