SPONSORED LINKS

Crank but will not start?

Tiny
ZACHARY383
  • MEMBER
  • 2009 CHEVROLET SILVERADO
  • 4.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
The truck cranks but it won't start I use a Autel scanner. It does not have any codes, but I notice when the engine is cranking the injection pwm bank 1 and 2 is about 50 to 70ms and the command air fuel equivalence is 0.4 :1. All the o2 sensor read around 450mV.
SPONSORED LINKS
Thursday, April 20th, 2023 AT 4:02 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,722 POSTS
When you turn the key on without cranking, the engine over can you hear the fuel pump run in the tank? Please check out this guide, we need more information.

https://www.2carpros.com/articles/car-not-running-advanced

Please go over this guide and report back.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, April 20th, 2023 AT 11:54 AM

Please login or register to post a reply.

Related Engine Not Running Content

How to fix an engine that wont start
VIDEO
How to fix an engine that wont start
Instructional repair video
Engine Not Starting
GUIDE
Engine Not Starting
Over the past 20 years at 2CarPros we have identified the top problems that are easily fixed. This guide can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE

Sponsored links