What's wrong with my Truck?

I have a 2007 Yukon XL Denali AWD with a 6-speed manual transmission. Every time I hit the gas after a stop or to accelerate during normal driving, the RPM jumps from 1 or 2 to 4 and sometimes 5 suddenly shaking violently then regulates down to the level it should be... Read More

  • If the jump is that crazy, it's most likely the ECU. That's what controls the engine. It receives inputs from the throttle among other things, so it's likely gone a little bonkers. You're still under warranty I'd imagine, so you're golden. Tell them it's too bad they can't recreate it, it's happening, and you paid a... Read More
  • Number 1-You drive the vehicle so a tech can monitor the transmission and get a snap-shot of the data to analyze. 2 The couple I've seen in our shop needed the trans.module or a valve body piece. 3 Your dealer should have a data recorder that you can take with you and when it acts up you push a button on it and it... Read More
  • idk, go to a mechanic

Answer this question (0 total)

Be the first to post an answer

Post an answer:

Post anonymously, or
(Required)
(Required - will not be published, sold or shared)
(Optional - your 'posted by' name will link to the URL)

Remember Me?

I have read TheCarConnection.com's privacy policy

Next Steps:

Check Insurance Rates

for the 2007 GMC Yukon Denali

Check Financing Rates

for the 2007 GMC Yukon Denali

Check Local Classifieds

for a 2007 GMC Yukon Denali near you

See the GMC Yukon Denali in Other Years:

2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999