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Engine will not stay running

Tiny
FIRECRAKR
  • MEMBER
  • 1987 TOYOTA PICKUP
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
Have replaced fuel pump, fuel filter, spark plugs, wires, thermostat, battery, distributor cap, and rotor button. The problem, I can turn it over and it will start but after idling for several minutes it begins to choke, cough, and sputter then shut off. Try restarting and all it will do is turn over. Suggestions?
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Tuesday, December 7th, 2021 AT 6:42 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
We need to start with monitoring the fuel pressure to find out what the pressure is when this stall.

Then we need to run through this guide that will help with getting us down the path further with the common causes of stalling at idle.

https://www.2carpros.com/articles/stall-at-idle

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

The most common causes of these are fuel issues and vacuum leaks so we need to rule these out even though you replaced the pump already. We may still have a fuel pressure issue even though you replaced the pump.

I attached all the info below on how to check these things and let's start with this and go from there.

Thanks
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Tuesday, December 7th, 2021 AT 5:05 PM

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