Question about 2000 Chevrolet Silverado

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2000 chevy silverado 2500 with a 6.0 motor

The service engin soon light comes on for awhile and then it goes out ,and then back on.the engin keeps cutting out,almost like a missfire i was told by a machanic that it is a oxyen sensor. but their are four of them is their a way i can tell witch one it is.

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Find someone with an obd2 scan tool most parts stores will let you use one. If its the o2 sensor it will read o2 sensor Bank 1 or 2 Sensor 1 or 2. Bank 1 is the drivers side bank 2 is the passenger side. Sensor 1 is upstream (before cat.) Sensor 2 is downstream (after cat.) For example if it reads o2 sensor Bank 2 Sensor 1. Means passenger side upstream (closer to the motor)

Posted on Mar 20, 2009

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I own a shop, and think this; The light came on, and later (after ignoring it) it started flashing. If its flashing; it means you have a problem that requires attention right away, and should not be driven. You could have a problem that will do severe damage to the engine, and/or other components in the vehicle. If its not knocking, squeaking, or dieing in the road, then this must mean you can still drive it. If your dad is a mechanic, then I would suspect he's going to raise cane at you for ignoring the light. Should you not know something is wrong, and by ignoring the light you could be doing more damage to your car? Check it out before you even attempt to drive it anymore. If it melts down in the road, your dad is going to know. You sound just like my son. He won't check anything until it just dies completely, and then he complains about having to spend more to fix it, than he would have if he had just fixed it to begin with. I'll bet you would fix your computer if it was acting up, so why not your transportation? I don't mean to sound rude, and I'm in no way trying to insult you. I just think you are not doing your poor car any favors, and your dad may go off on you.
Glad to add my 2 cents worth!!!

Posted on Jun 26, 2008


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2000 chevy silverado ,5.3 liter engine .service engine soon light on so scanned for problem codes ,results bank 1&2 are running lean .what is the cause or problem that needs to be done to fix

Check for loos connections between the intake and the tube from the air filter. Check if the clamp is loose or leaks in the tube which can cause an incorrect reading. Other than that it may be a dirty MAF sensor which can be fixed by spraying carb cleaning or tuner spray in the intake or it may be bad or a bad oxygen sensor;.

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I find it hard to believe you need a third alternator. if you do something is going on to burn them up. have them check wires might have a harness rubbed thru grounding out at times

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