Stops running after it warms up

Tiny
ALT
  • MEMBER
  • 1999 DODGE DAKOTA
  • 6 CYL
  • AWD
  • MANUAL
  • 80,000 MILES
Hi, after I have driven it for a short time the truck stops running. I'm wondering if it is my fuel pump shutting down. I have replaced fuel filter and done a tune up and I still have the problem. Do you have any suggestions?
Thursday, October 2nd, 2008 AT 4:55 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This could be a fuel pump issue, so we need to start with checking the fuel pressure when this is happening to find out if it is dropping out once the engine is warm.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

If it is not, then we need to know if the truck restarts right away or does it have to cool off.

If it does, then this could be a crank sensor issue.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Lastly, we need to monitor the o2 sensor data and find out if this is telling the PCM incorrect data. If it is, then that can cause the engine to flood or go lean and stall because the o2 sensors are not used until the engine is warmed up.

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor

So, let's start with this info and we can go from there. Thanks
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Sunday, May 22nd, 2022 AT 7:21 PM

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