SPONSORED LINKS

2002 GMC Yukon code P0300

Tiny
D107
  • MEMBER
  • 2002 GMC YUKON
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 185,000 MILES
I've replaced mas air flow, egr valve, fuel filter, injectors, plugs and plug wires, crank shift sensor. Fuel pressure is running around 50psi have good spark. But still throwing a code p0300. What else could it be?
Wednesday, June 18th, 2014 AT 4:18 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
These are very hard to diagnose even for a pro best to have them do it if your vin is "Z" then it shold be 48-54 psi all others 55-62 so if it's not a vin z sounds like fulepump doesn't have enough pressure. Although it could be something like a compression problem valve train problem.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, June 18th, 2014 AT 6:12 AM

Please login or register to post a reply.

Related P0300 Content

Sponsored links