Not starting

140,000 MILES • 3.5L • V6 • AWD • AUTOMATIC
Avatar
JESS1016
  • MEMBER
  • 6 POSTS
The vehicle will turn over but will not start. We have replaced the cam and crank sensors, as well as the 2 o2 sensors, plug wires and spark plugs. When it stopped running the rpm gauge went up and the engine revved as well then just cut off.
Dec 16, 2013 at 5:43 AM
Advertisement
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
So I am going to assume that this cranking but not starting. Meaning when you turn the key the engine turns over but does not start. Here is a video that talks about this:

https://youtu.be/dCjmRL3p4Cs

If this is the case, it sounds like the ignition system is not the issue so we need to check the fuel pressure to make sure it is getting fuel. However, I am going to speculate that this is not there.

Here is a guide that will help check this to find out if it is there:

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

I am also attaching the process from the manual on how to check the operation of the pump. Basically they want you to jump the relay and see if it comes on. However, this is not a complete test so we need to know if it can provide pressure as well.

If the pressure is not correct then we need to replace the pump. Please see this info below on how to perform this as well.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Please let us know what you find with this and we can go from there. Thanks
Jul 19, 2021 at 1:32 PM
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