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Subtle vibration, can of worms opened.

Sparky176
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Sparky176 New Member

Sparky176

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Truck in fluid changes and investigate subtle shudder at cruising speeds.  Told them it felt like my ‘14’s shudder when AFM kicked in.  


Dealer #1 :  You need a new torque converter.  
6 weeks later, after causing other damages to my truck, I get the truck back.  Same shudder exists. New, more violent shifts and vibrations at low speed.  After choice words and a few more weeks of waiting for them to replace my running boards supports, I move on to another Dealer.

 

Dealer #2:  The cruising speed shudder is DFM.  (I didn’t realize truck had it.) The TCM/ECM needs updates.  Updates will solve all vibration issues.  

They perform updates, truck seemed ok in lot.  Not a mile down the road, SERVICE BRAKE PAD MONITOR. Dealer #1 stated brakes were at 4mm.  
took truck back to Dealer #2, rear brakes at 2mm and less than 1mm.  
 

New pads/rotors on rear, new pads up front.  

truck seems good. Toggle through menus, brake monitor system is disabled.  Huh?  Why? Turn that sucker on : SERVICE BRAKE SYSTEM!  
 

will not reset manually, automatically, or even after pulling negative bat cable for 30min.  
 

Could the TCM/ECM updates the culprit? 
 

A torque converter diagnosis for a “normal” shudder and now I’m thousands in the hole and the truck still isn’t right!  Beyond pissed.  

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