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random low power mode


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My Silverado SS has newer throttle body and gas pedal. ,172xxx miles, almost all highway miles. maintained religiously. Now has randomly dropped into low power mode. turned on and off the ignition twice and went back to normal with the engine light on.  when i started it up today the engine went off but  now feels like a random miss at highway speeds but very, very spiritic.  anyone have any real ideas for a starting place. my regular mechanic shop couldn't find anything. thanks

  

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It happened to me one time and one time only (knock on wood) on my 2006 when it had maybe 80K or so on it, and cycling the key made it go away.  I looked into it a little bit as it worried me that it might pop up again, and all I could find online were mentions of throttle body problems, but none of them seemed to have confirmed it was the solution.

If you do some creative net searching you might turn up better info than I found a few years back.

Since your CEL is on, you should be able to pull some codes and see what it's telling you, might be helpful.  Easy enough to spend a few bucks on even a simple code reader - I've got the BAFX Products bluetooth reader (under $25 and connects more reliably to everything I've used it on vs. the cheaper ELM327 readers), and Torque Pro app for android, $5.99 last time I looked.

Richard

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Richard thank you for the information all the codes are things that have already been replaced in the last 10,000 MI and I'm thinking since it's driving normally and I've put over 500 miles on it already maybe it'll be like yours was and not happen again it's very strange but who knows I have a code reader and my mechanic had a code reader too so maybe we'll see what happens I have a 2000 mile trip coming up here shortly because I drive it for my wife's business a lot on trips hopefully we won't have any trouble. thank you again man!

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Wish I had better info for you.  Best of luck on your trip!  And while I really hate to point anyone away from this forum, it really has pretty much died off in the last couple years.. I still visit, participate where I can, and hope others will too.  However, I'm on several forums, and one that is a lot more active and relevant to our trucks is performancetrucks dot net - it's definitely more geared towards modified trucks than stock, but there are a lot of knowledgeable people there (and some of 'em are on here, too.)  You might check it out.

Richard

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On 4/28/2022 at 1:25 AM, someotherguy said:

Wish I had better info for you.  Best of luck on your trip!  And while I really hate to point anyone away from this forum, it really has pretty much died off in the last couple years.. I still visit, participate where I can, and hope others will too.  However, I'm on several forums, and one that is a lot more active and relevant to our trucks is performancetrucks dot net - it's definitely more geared towards modified trucks than stock, but there are a lot of knowledgeable people there (and some of 'em are on here, too.)  You might check i

thank you,Richard I'll look that up and join. so far after the reset no trouble. I talked to my friend and we had gotten gas right before that and the place we were at also sold ethanol fuel in three configurations one was 30% ethanol one was 60% ethanol through the regular gas pumps so we may have got a shot of that ethanol crap in with the premium when it first started pumping and maybe that set it off I'm not sure but whatever it is it seems to be working all right now thanks for all the help Richard I appreciate it buddy

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