Will not run

Tiny
JACOB BULLS
  • MEMBER
  • 2004 SATURN VUE
  • 4 CYL
  • 2WD
  • MANUAL
  • 163,315 MILES
It shut off on me a month ago and I had it towed home. It won't crank unless you floor the gas, and even then it is hit or miss. Once cranked, I have to keep the rpm above 2,000 or it drops and putters out. Loud rattling from under the car and visible rattling above engine when the rpm drop.
Wednesday, May 29th, 2019 AT 9:41 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Welcome to 2CarPros.

Honestly, it sounds like you either have a fuel pressure regulator issue causing too much pressure or the catalytic converter is totally plugged. Was there a loss of power prior to the issue?

Here are two links. The first explains how to check fuel pressure and the regulator and the second how to check a catalytic converter.

Take a look. Also, I included symptoms related to the converter.

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

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

Here are the specs for fuel pressure:

Fuel Pressure (Key on, engine off) .................... 345-414 kPa (50-60 psi)

Or try this. Under the hood is a fuel pump relay. Remove it and try starting the vehicle and see if it runs for a couple seconds then shuts off. The relay is in the under fuse box/relay box. See picture 1

Check these things and let me know what you find.

Joe
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Tuesday, February 9th, 2021 AT 8:28 AM

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