2004 Chevrolet Suburban 6 0 Liter Started Chugging Really Bad Under Hard

2004 CHEVROLET SUBURBAN
200,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
I have a 2004 Suburban with a 6.0 liter in it. It has started chugging really bad under hard acceleration from a stop. Not hard enough to spin the tires, just hard enough to pull a load. If you roll onto the accelerator easy, it runs fine and if you are going 20mph or more, and accelerate hard, it takes off like it should.
Any ideas? I was wondering about the Idle air Controller
Oct 29, 2012 at 1:25 PM
Advertisement
Avatar
KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
IAC is for idle control and does not affect accelerating performance which is more likely to be the TPS.
Have you checked for trouble codes?
Oct 29, 2012 at 1:37 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.