O2 Sensor???

**RobbOU1215** · 09-08-2009, 11:31 AM

I have a 2002 Chevy Tahoe 4.8L (135K), when cranking over acts like it wants to stall. RPM's hover less than 500, gas it, still wants die out. Added fuel injector cleaner, full tank of gas. Could this be an O2 sensor problem. No other indications (service lights/engine) are visible.

Thanks

**Jimmiee** · 09-08-2009, 11:44 AM

Originally Posted by RobbOU1215

I have a 2002 Chevy Tahoe 4.8L (135K), when cranking over acts like it wants to stall. RPM's hover less than 500, gas it, still wants die out. Added fuel injector cleaner, full tank of gas. Could this be an O2 sensor problem. No other indications (service lights/engine) are visible.

Thanks

Welcome to GMTC!

What you need to do it get your truck scanned for trouble codes. The problem could be caused by a number of things. The O2 sensor would not cause this problem however.