RM4665
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Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
Has anybody thought about putting it on a lift and running it up to the speed it shakes at and looking/feeling around the underside? -
Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
Sounds like another case of good tires fixing an issue. -
Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
I don't think TAC is a bullitin, I think it's when the dealer calls GM and opens a case and GM tech assistance tells them what to do. That's a reference number far as I know. -
issue The Interior "Snap, Crackle, Pop" Thread
RM4665 replied to MotoMedic's topic in 2014-2018 Silverado & Sierra Troubleshooting
Mine does not do it (neither of the 14's I've had), others have complained about it on other threads. -
issue The Interior "Snap, Crackle, Pop" Thread
RM4665 replied to MotoMedic's topic in 2014-2018 Silverado & Sierra Troubleshooting
How long does the warranty cover fixing these rattles? Not for the whole 3/36 is it? -
I was told by parts the key is about $80.
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Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
The acceleration vibration really is "normal" I think. -
Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
Anybody have the motor shimmed with success. I've seen a couple folks claim it solved their problems on other forums and it was mentioned once early on here, but that's it. -
Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
Mine was out of aliment when I got it, just slightly though. I got the 500 mile line as well. Something about suspension settling etc. It was fine by me since I knew I wanted to get the oil changed at 1000 and would probably have a punch list to go through at the same time. -
Shake or Vibration Issues
RM4665 replied to Silver space ship's topic in 2014-2018 Silverado & Sierra Troubleshooting
Dealer couldn't remedy the rhythmic vibration in my truck. No other ideas. I threw in the towel and took it back. Left with another one, minus the shakes and added a 3.42 rear end. First 400 miles are going good so far. -
Exhaust Adaptive Valve
RM4665 replied to MotoMedic's topic in 2014-2019 Engine, Driveline, & Exhaust
Really, that's it. Acoustics? There is not a mechanical reason? -
Exhaust Adaptive Valve
RM4665 replied to MotoMedic's topic in 2014-2019 Engine, Driveline, & Exhaust
Did I miss it or what's the point of this flapper anyways? -
2014 Sierra humming noise
RM4665 replied to Oli4's topic in 2014-2018 Silverado & Sierra Troubleshooting
It actually wasn't me, it was Brandon1282. I another post he said it fixed the proem he was having though. I quoted him. -
2014 Sierra humming noise
RM4665 replied to Oli4's topic in 2014-2018 Silverado & Sierra Troubleshooting
I'm not so sure what you're talking about is not the below, to a lesser degree after looking around a little bit, but what do I know. If the Torque Converter was bad / getting bad signals, just not as bad as the next guy, maybe you'd just get a hum noise instead. brandon1282, on 14 Nov 2013 - 14:34, said: Just to update everyone on the rumble strip vibrations I was experiencing. I got the truck back 2 days ago and so far so good. Here is what the dealer reported: Road tested vehicle and found possible tire/wheel vibration. Removed all four wheels and road force balanced to find one tire out of range. This tire was replaced and then vehicle was road tested again. The vibration improved but was not eliminated. Checked for TSB's and none were found that directly addressed this concern. Contacted TAC and TAC suggested to utilize TBS PIP5149B. I followed all instructions of this TSB, checking for excessive spark retardation and connecting rod oil squitter condition. There were no conditions observed. TAC then directed me to utilize DOC ID#2102430 where I checked the operation of the control solenoid within the transmission. When commended to the on position, It registered full pressure and when commanded off it registered 0 pressure. After completing all tests found that TCM could not be 'pulse-width' tested, only command on or off. With these measurements we determined that the TCM was sending an erratic signal causing the torque converter to be commanded erratically. This caused potential damage to torque converter. Therefore, I replaced the TCM (Signal) and torque converter (damaged internally). Road tested vehicle; now operating to GM specifications with no vibration when tested under the original conditions. I have also noticed that the "floating Tac" condition I had earlier is no longer present.
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