On trying to restart the engine would turn over but no start?

2006 CHEVROLET 3500
229,000 MILES • 6.6L • V8 • TURBO • 4WD • AUTOMATIC
Avatar
TRAILGATOR
  • MEMBER
  • 2 POSTS
Pulled out of parking space yesterday and truck shut off. On trying to restart the engine would turn over but no start. Unhooked the batteries for 10 minutes reconnected them, still no start. Checked fuses in underwood fuse panel all checked good. After an hour in the parking lot checking things and still no start I called a wrecker to have it towed home. When I got it home and the tow truck driver suggested I try it again, I hit the key and it started right up. I have a 2 part question, where would you suggest I start looking and second part of the question is, which OBD2 scanner would you recommend I buy in the sub $200.00 range?

LBZ Duramax
Aug 4, 2022 at 7:33 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
There are many good OBDS scanners, but I recommend a CAN scanner because it scans the entire truck. It can tell you about problems with the engine and supporting systems, SRS, ABS, climate control etc. Check out this one:

https://amzn.to/3P1gOTC

As far as the truck goes have you serviced the fuel filters/water separator? Also, there is a fuel pump and ECM relay #5 in the under-hood fuse panel that go out. Also, we should scan for codes as well.

Here are the relay locations (below) and a guide to help test them:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

I have also seen the fuel filter container leak toward the top which allows air to get inside the fuel system. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Aug 4, 2022 at 7:37 PM
Advertisement
Avatar
TRAILGATOR
  • MEMBER
  • 2 POSTS
Changed out the fuel filter and replaced the relay, so far so good have taken a few short trips to town and back and I haven't had the issue repeat itself. If it does I'll let you know.
Aug 10, 2022 at 6:37 AM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Nice work, we are here to help, please use 2CarPros anytime.
Aug 10, 2022 at 12:34 PM