Check Engine Light Help!!!

Hello all,

I drove my truck recently off road, and low and behold the service engine soon light came on. I have a 2001 Chevy Silverado with ~120K miles on it, 5.3 litre V8, 4wd. Wasn't wailing on the truck, but it could be a factor possibly? The dilemma I am presented with: Buy a cheapo internet code reader and see if I can fix the problem myself (I work on my older jeep pretty regularly, but never delved into something with OBDII), or take it to a shop, and pay $90 for a diagnoses, and see how much extra it will cost me... WHat kind of problems cause this light to come on? Can someone with moderate experience tackle a lot of the issues? And would it be worth it to have the code reader at the end of the day?

Thanks for your thoughts!

There is no answer to your query without a code. Autozone will read the codes, free.

Awesome! Thanks. Didn't think to call them, they don't do it in my area, but Pep Boys does, off I go!

Pep Boys says the code is P1415. He cleared it and said that if it comes back I have an issue, but if not then it may have been a fluke, anyone else have that code?

your code is air sys bank 1. there should be a brain operated diverter valve brain open or closes valve using vac lines . check vac lines but valve may have stuck giving code that may not come back. good luck

When I got P1415, it was a rusted (shut) Secondary Air Injection Check Valve. In my case, I got P1416 a few weeks later (the same part but other side).

Parts are available at AC Delco Parts Store or www.rockauto.com.

//2000CAYukon

Thanks for the input, so far it hasn't come back, hoping it stays gone, but if it comes back on I will look at the valves, any information on where they are located or how hard they were to replace? I am hoping the bumpy roads simply triggered something to be unhappy and it is now happy again!

It will come back if the valve is rusted close (It came back for me after I cleared the code). It takes a few trips for the light to come back on.

The valves are easy to replace and are above the exhaust manifolds on both sides.

//2000CAYukon

Thanks, I appreciate the information, I will drive it around and test it out, see if I can't get it to return!