rcorbin
TYF Newbie
- Joined
- Dec 11, 2021
- Posts
- 8
- Reaction score
- 3
I have a 2007 Tahoe with the 5.3 with 175k miles, I have noticed that the truck has been very sluggish around 45 if i try to accelerate its slow and it vibrates, until out of nowhere when i hit about 55 it just stops and everything is normal, i can also feel as i’m accelerating the engines rpm is slowly dropping down and then goes back up, almost like it’s misfiring, my truck isn’t throwing a code though, I have replaced the fuel pump, spark plugs, maf sensor and done a air filter recently, also checked the throttle body and it seemed clean. Also would like to add my transmission shifts normal and I am getting normal temperatures. Any suggestions on what it could be would help tremendously thank you.