Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

  • 0
Hodder

2007 GMC Yukon Denali, 6.2L, Hard Start, Extended crank when warm

Question

Wondering if anybody has experienced the hard start, extended crank on warm days.  The truck has 140,000 miles, 6.2L, 2007 

occurs whether it’s warm outside or parked inside and warm (I.e.20+ C, 70+F).  Only occurs during these conditions, perfectly fine on cooler days and first starts in the morning etc.  Ran my handheld reader Innova scanner and no error codes, took to dealership, can’t duplicate or no errors codes.  Changed the EVAP canister purge valve (located by the throttle body) but didn’t resolve, removed and cleaned the throttle body, removed and cleaned the MAF sensor as well, no change.  
Just ordered the Vapor Canister vent valve solenoid located below the vehicle above the spare tire by the fuel tank and runs to the filler cap.

 

Thoughts or advice?

Share this post


Link to post
Share on other sites

1 answer to this question

Recommended Posts

  • 0

check the fuel pressure when you are having the problem, if below spec replace the pump

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.