GMC Acceleration Loss

2004 GMC YUKON
50,000 MILES • V8 • 4WD
Avatar
GMCGUY
  • MEMBER
  • 2 POSTS
Have a 2004 GMC Yukon. When accelerating from a stop, sometimes there is a pause (no power) of about 1-2 sec. when it should be going 1st to 2nd gear. Dealer said the transmission is fine, but not sure what is causing this power interruption at low gear. Doesn't occur at any other time.
Dec 20, 2010 at 12:04 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Has the check engine light come on? Has the fuel pressure been checked?
Dec 22, 2010 at 3:45 PM
Avatar
GMCGUY
  • MEMBER
  • 2 POSTS
Engine light does NOT come on. Fuel pressure is OK. Did have the transmission fluid changed, without any improvement.
Dec 22, 2010 at 6:57 PM
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
If that is the case, start by checking for vacuum leaks.
Dec 23, 2010 at 12:36 PM
Avatar
04DENALIGUY
  • MEMBER
  • 3 POSTS
Hey GM guy did you ever figure out your acceleration problem on your 04 gmc Yukon, I too am having the same problem with mine?
Feb 21, 2015 at 5:35 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.