Truck keeps stopping like it is out of gas

300,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
AMANDAA29$
  • MEMBER
  • 1 POST
When I'm driving after a little while doesn't shut off but when pressing gas it doesn't accelerate. I've replaced fuel pressure regulator, fuel pump and fuel filter.
Apr 2, 2019 at 1:42 AM
Advertisement
Avatar
SCGRANTURISMO
  • ✓Experienced Mechanic
  • 4,897 POSTS
Hello,

This could be a problem with your throttle body needing to be cleaned. While moving the amounts of air that your vehicle needs to ingest to run your vehicle's throttle body will get coated with a black "gunk" called coke. This coke will get all over the bore and throttle plate and interfere with the signal of the Throttle Position Sensor (TPS). Without a clear signal from the TPS your vehicle's Power-train Control Moduke (PCM) will go into "limp mode" to keep your engine from going lean and blowing up. I have included a couple of diagrams down below for you to go to:

https://www.2carpros.com/articles/engine-has-low-power-output
https://www.2carpros.com/articles/throttle-actuator-service
https://www.2carpros.com/articles/reduced-power-limp-mode

Please go through these guides and get back to us with what you find out.

Thanks,
Alex
2CarPros
Apr 2, 2019 at 9:39 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle