Stalling after start?

Tiny
FOOLISHSHAWN
  • MEMBER
  • 2002 SATURN SL2
  • 1.9L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
One morning I went to start the car, and it started fine then right after the idle dropped down and then shut off. I started it again and the same thing. I then started it and played with the gas pedal, and I got it to stay running at a high RPM but once I let off the gas pedal it shut off. Now I would do this at a high RPM until the car was warm and shut it off wait a couple minutes start it up and would run fine. That lasted about 1 week then it stopped, and I didn't have any problems for about a month and now it is doing it again but this time I can't get it to run after I warm it up.
Wednesday, January 29th, 2025 AT 3:33 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,055 POSTS
Hi,

What you described sounds like a failing crankshaft position sensor. When they begin to fail, often they are affected by heat.

It could also be related to fuel pressure, but I would suggest checking the aforementioned sensor. Do me a favor. Take a look through this link and let me know if anything mirrors what you've experienced.

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

Let me know.

Joe
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Wednesday, January 29th, 2025 AT 8:16 PM

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