Engine feels like it wants to shut off at lights?

Tiny
JOSH J-ONE SALAS
  • MEMBER
  • 2002 MITSUBISHI GALANT
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 191,000 MILES
I have the car listed above that I just recently bought. I just replaced the alternator. The issue is the fuel pump. I believe idk I'm just looking to see if I'm correct. I spray like a starter cleaner, and it starts right up just feels like it wants to shut off at lights and stuff. If it runs when started isn't the fuel pump good. I mean it must be getting spark if it turns over and runs. What could it be before I buy a fuel pump?
Monday, July 31st, 2023 AT 12:48 AM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,625 POSTS
This could be a weak fuel pump, or a vacuum leak and I would even service the throttle bore.

Here are guides to help us fix the problem and get your car back on the road:

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

And use this guide when the engine is cold only:

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

And this guide for the throttle bore service:

https://www.2carpros.com/articles/throttle-actuator-service

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

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Monday, July 31st, 2023 AT 4:26 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,625 POSTS
Anything?
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Sunday, May 5th, 2024 AT 4:33 PM

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