Vibration at all speeds
#11
Retired
Last I knew, HPTuners can turn off AFM.
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
2011 Chevrolet Tahoe PPV
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
2011 Chevrolet Tahoe PPV
#12
Senior Member
True Car Nut
i dont have truck in my possession, but you are right on the money about the v4 activting or atleast the RPMs coming down low to do that thrummmm noise. i placed it in manual shift mode a few times coming back from sacramento while on the freeway. i would just make sure to keep the rpms at 2k. So far the local dealership is leaning towards my transfercase being some how locked in 4wd Hi. never heard of that but thats where they are going. on another note i call GM and started a ticket regarding getting back my warranty on the grounds of dealership making false or incorrect diagnosis.
(1) lift front wheels off ground
(2) start car in Park
(3) select 2-HI
(4) shut off engine
(5) try to turn front drive shaft
(6) does front drive shaft turn? "Yes"=good , "No"=bad
While they have it they should easily be able to test the AFM theory as well.
Both tests together should take less than an hour.
The following users liked this post:
axismarkg (12-19-2017)
#13
Junior Member
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Thread Starter
Next step as of today was they reset something with the transfer case due to clues that showed tcase locked up in 4wd. Worse case scenario he mentioned was to replace the tcase main coder motor. Anyone know if this sounds about right?
#14
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i did i turned out the AFM to see if it could make a difference, turned in on again, selected performane mode, then tow mode and then stock. None to my luck worked. what i do remember doing right before feeling that vibrating trans sensation was backing up trailer in a parking lot ful passenger turn, coming up to a pile of gravel for cement crew. Once i saw that 4ft mound of gravel they dumped i straightened wheels put it in 4hi and reversed the front driver tire over half that gravel. Once clear i selected back to 2hi, it gave me some trouble going back to 2wd but it went back. After that is when i noticed the dilemma at hand.
Oh and GM called me back about my complaint, "your user manual states any modifications will void your warranty" i was like what???? so if someone goes to a dealership for an oil change and they modified something on their vehicle you can just flat out pull that line out of the manual and void their warranty? this is total BS i told her amongst other things. When i heard her voice and name which sounded like a collector calling i knew i lost the case.
Only thing helping me is that the company i work with has asked me a few times to use my truck is willing to pay half the bill for anything thats being accrued. Still sucks but helps.
Oh and GM called me back about my complaint, "your user manual states any modifications will void your warranty" i was like what???? so if someone goes to a dealership for an oil change and they modified something on their vehicle you can just flat out pull that line out of the manual and void their warranty? this is total BS i told her amongst other things. When i heard her voice and name which sounded like a collector calling i knew i lost the case.
Only thing helping me is that the company i work with has asked me a few times to use my truck is willing to pay half the bill for anything thats being accrued. Still sucks but helps.
#15
Senior Member
True Car Nut
Did they do the test I described?
Same folks that said that individual gears in the transmission were messed up?
#16
Retired
Oh and GM called me back about my complaint, "your user manual states any modifications will void your warranty" i was like what???? so if someone goes to a dealership for an oil change and they modified something on their vehicle you can just flat out pull that line out of the manual and void their warranty? this is total BS i told her amongst other things. When i heard her voice and name which sounded like a collector calling i knew i lost the case.
https://en.wikipedia.org/wiki/Magnus...s_Warranty_Act
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
2011 Chevrolet Tahoe PPV
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
2011 Chevrolet Tahoe PPV
The following 2 users liked this post by Mike:
CathedralCub (12-20-2017),
Soft Ride (12-20-2017)
#17
Junior Member
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this dealership isn;t who said my gears in tranny were bad thats up in Elk Grove CA, im down by Riverside CA.
Now that i have it back i can start medaling with it to see where this vibration is coming from. I feel like removing that front driveshaft to see if thats the ticket.
#18
Junior Member
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Well, there are many instances where a mfg can and will void someones warranty if they suspect abuse/misuse. But, legally they can't void it because you changed some parts around.
https://en.wikipedia.org/wiki/Magnus...s_Warranty_Act
https://en.wikipedia.org/wiki/Magnus...s_Warranty_Act
#19
Junior Member
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im reading a bunch of threads and i came across flushing torque converter, but it just had a new torque converter installed this should null that option for me. also read that a misfire could possibly cause this aswell?
#20
Retired
Misfires do cause shudders when the TCC is locked up.
__________________
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
2011 Chevrolet Tahoe PPV
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
2011 Chevrolet Tahoe PPV