1996 GMC Yukon

1996 GMC YUKON
325,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
ABRAMS
  • MEMBER
  • 1 POST
Was driving vehicle at 50 mph and the engine died. Just before it died I cranked it over the enginge started and I proceeded down the road, it hesitated/stumbled twice and died. Prior to this no noticeable problems remembered. After it died I crank the engine over coughed (not a back fire) back up through the carboration unit. Cranks over when ignition is turned on but will not start. What could be the causes
Oct 19, 2009 at 10:12 AM
Advertisement
Avatar
SERVICE WRITER
  • ASE Certified Mechanic
  • 9,123 POSTS
  • ASE Certified Mechanic
This will give you an overview.

https://www.2carpros.com/first_things/car_cranks_but_wont_start.htm

You can spary some carb cleaner in the throttle body and then crank it. This may help confirm fuel loss.
IF this happens, I would next check fuel pressure to see if it goes into spec if I can hear the pump energize.
If good check for loss of spark with a spark tester.

Post your findings.
Oct 19, 2009 at 1:48 PM
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.
Ask a Free Question
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.