01 Suburban -- Rough idle, hard starts

Joined
Sep 1, 2004
Messages
2,397
Location
So. Austin, tx
Have an 01 suburban that is idling rough. If you turn on the AC, it almost wants to die or dies on occasion. It is also taking longer to start. It has fresh plugs and wires. Any suggestions? 5.3L engine, 160K+ miles...

Thanks in advance,

Meatloaf
 
Joined
Sep 1, 2004
Messages
2,397
Location
So. Austin, tx
had them plug the code reader at Autozone and it show some 02 sensor codes... Would that make the engine run rough and have problems starting?
 
Joined
Sep 1, 2004
Messages
2,397
Location
So. Austin, tx
Thanks Mace, I will look into it...Cleaned out the throttle body & replace TPS yesterday and it is idling better but still has occasional starting problems.
 
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