Chevy Suburban Forum (GMC Yukon XL)
Hello, I'm new to forum, looking for some help.
This is a COLD engine OPEN loop problem only, all good when warm.
I have a 91 Suburban V2500 5.7L 4L80E
Basically when the engine is cold I have to work the throttle and pray I make it thru an intersection, or wait for it to warm up before I...