GM Truck Club Forum banner

o2 sensors

  1. Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)
    I swapped an LS LM7 from 2003 Tahoe to F150 1977. (engine, fuel senders and EVAP vents into steel tank, EVAP, lines, exhaust with cats, BCM, etc) Everything works great. The truck runs superb. Enters Closed-Loop. I am having problems with Oxygen sensors. When the engine is cold, on the first...
  2. Chevy Express Forum (GMC Savana)
    Howdy folks, I have a 2013 Express with a 4.3. I recently experienced a couple of episodes of stalling, and then rough running on restart. Both occurred when I put the van in reverse, to back up to a bay door. Had been running fine before then, and when I started back up and drove out in drive...
Top