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New from NE Florida

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New from NE Florida

Postby firemedicsafd [OP] » May 23 2020, 10:46pm

Hey everybody. New here but not new to Chevy. I have an 06 Silverado 2500HD CCSB 4X4 Duramax, a 2005 Suburban, and a 1988 K5 Blazer. Joined because of the dreaded P2135 code. AGAIN after replacing the TAC module, TPS, and wiring connector. AND several trips to mechanic with no success. Problem returns approx 3 months after clearing code(s) with reduced engine power. and it now shuts the truck off. Found this site from a YouTube video and now looking into what I need to do in order to get this thing RIGHT. All hard parts were replaced by AC delco parts and all wiring soldered and heat shrunk. Any help or articles I need to read to get this thing fixed would be greatly appreciated. Thank you!
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Re: New from NE Florida

Postby EaOutlaw1969 » Jun 06 2020, 11:04am

I would start by searching TSBs for this problem for your year truck. They have several TSBs for this problem and code for other year GM vehicles including trucks.

here is a link to a video covering the repair and below that is a link show just one of these TSBs


https://static.nhtsa.gov/odi/tsbs/2012/ ... 9-8347.pdf

I used to use Alldata to obtain somewhat decent factory information and service procedures including TSBs and recalls yet I am unsure what they offer for your year truck. it is worth a look and a subscription if they cover your vehicle.
Just make sure to validate the data and procedures found on their site with common sense as I have found incorrect data carried over from the factory that was never corrected with a update or service bulletin procedural update. ( meaning no one caught the incorrect data or at least they never reported it to the factory ) Normally this type of incorrect data shows up in diagnostic flow charts where test a leads to either result x or y and they would have these reversed with a good mechanical background and willingness to not blindly follow these flow charts without it making sense will keep you out of trouble.
I will admit this type of incorrect data is rare but can lead you down the wrong and most of the time expensive rabbit hole.
Example while working at Mitsubishi diagnosing a crank but no start on a brand new never sold SUV a diagnostic flow chart lead me to either having a bad computer or bad relay feeding the computer the diagnostic flow chart along with my test results showed the computer was bad yet common sense showed the relay was bad since it was not feeding the computer power .

My gut is telling me the tsb above very well may apply to your problem. it certainly is worth looking into. perhaps other people here whom have solved this problem with your year vehicle will pipe in. for now I hope this gives you something to research and I hope this in some way helps solve your problem.
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Re: New from NE Florida

Postby 4silverado » Jun 06 2020, 9:25pm

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