Question about 2002 Chevrolet Blazer

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I installed a Crutchfield radio in September of 2007, in my 2006 Chevy Trailblazer with the small V-6 engine. During November 2008 my emission lite come on and has continually stayed on. I checked it with a meter from a parts supply house and it gave me a code indicating the engine was running lean which sounds like to me it's vacuum leak in the fuel system. I later found out that my Blazer was still under factory for a emissin problem. (had 29,347 miles on it when I took it in) The SUV has been to Chevelot twice and they have changed the computer and the O2 sensor. Contiually, stating the radio is the problem! So far they have covered the repaires under warranty If this is the problem, why hasn't this emission problem started back when I intalled the radio? I feel Chevy is using this to keep from paying on future warranty problems. Please advise ASAP

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  • joerizz Feb 22, 2009

    What if the radio fues is removed, Wouldn't that correct the problem if it's a wiring problem?

  • joerizz Feb 22, 2009

    The radio works fine.ever since I installed it

  • joerizz Feb 22, 2009

    I'm not looking forward to disinassembling the dash to check my wiring when I don't beleive the problem is with the radio (in the dash). Isn't some way to check this outside the dash. I don't have a 2006 wiring schamitic to see where this wiring comes out to the CPU

  • joerizz Feb 22, 2009

    Can you fax me a copy of the wiring schamitic {9509-443-4149} )2006 railblazer, small V6) so I can get a better understanding what area I have a wiring problem in? I'm a retired Transport Refrigeration mechanic and understand how to read this informaton.

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I had the same issue. Not with a radio but another problem. I was still under warranty and went to the dealership 3 different times and the problem was supposedly fixed the 3rd time but shortly after it had the same problem and of course my warranty ran out. They took other customers before me and i don't feel they wanted to put to much time and effort into it. I was really disappointed.

Posted on Mar 16, 2009

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Hi, i would replace the wiring harness with an aftermarket type. the factory harness may be defective, causing these disruptions with the vehicles CPU. The Chevy wires run together in unison and the AC wires also run with the radio as well. any disruptions with wiring that is faulty in the wiring harness that is detected will cause issues.

Posted on Feb 22, 2009

  • Michael Masters
    Michael Masters Feb 22, 2009

    I would also keep the fuses in the sockets. removing a fuse may cause to much current to run threw the system initiating an electrical fire.

  • Michael Masters
    Michael Masters Feb 22, 2009

    I have prepared a link to a page that will help you with the wiring. you will also find all the harnesses and wires you will need to re wire the entire stereo system. There are wire diagrams as well for you to look at on the bottom of the page. Click here to enter the site.

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Tell them to replace the intake plenum gasket as well as the fuel filter this has nothing to do with your radio.dont take no s*** from them

Posted on Feb 22, 2009

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As what you thought that can be the issue.so if you get your radio checked at any local dealer it will be clear as this is not possible logically but technically its possible that any oy the wires getting in contact with eachother which should actually not get touched.due to this the emmission problem can happen.

Posted on Feb 22, 2009

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It can be connecting wires in the radio as a problem as they are definately getting cut at somewhere in between on in the control module so this happening in this issue the wirings should be rechecked and connectd properly and in other case the wirings should be replaced.

Posted on Feb 22, 2009

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This was all I could come with, hope it helps.



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