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Why is my truck shifting sooo hard and it comes and goes?

Tiny
SHAWN FIGUEROA
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • 10,100 MILES
I have a 2000 silverado with the 6.0 L 4x4 and the transmisson all the sudden began slamming into gear! Then after a couple miles it stopped and was shifting perfect again! It keeps going back and forth from perfect to slamming in gear. When it's shifting hard it's while only upshifting it never shifts hard will downshifting. Could this be a speed sensor OR a bad solenoid OR both? I would appreciate some info. I've owned the truck less than a week and I'm wondering if I should take it back to the dealership or if it's a common and/or simple fix?
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Saturday, March 24th, 2012 AT 2:16 AM

9 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When its happening does the check engine light comes on? If so have the computer scanned for code/s

You should take it back to the dealer and have it further checked and tested-
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Saturday, March 24th, 2012 AT 12:10 PM
Tiny
SHAWN FIGUEROA
  • MEMBER
  • 5 POSTS
No check engine lights come on at all! I tried to do some research on the internet and from what I found it sounds like the speed sensor or the solenoids are going bad.
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Saturday, March 24th, 2012 AT 6:07 PM
Tiny
SHAWN FIGUEROA
  • MEMBER
  • 5 POSTS
I'm hoping that this is an easy fix, and if so I would rather not deal with the hasle of going to the dealership.
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Saturday, March 24th, 2012 AT 6:19 PM
Tiny
BEEEV
  • MEMBER
  • 1 POST
I had a 3500 6.0 4x4 doing this and the issue was throttle position sensor. I replaced it and issue was resolved. It was very intermittent. Hope this helps
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+1
Saturday, March 24th, 2012 AT 8:03 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the VSS and the TPS sensors-have it tested
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Saturday, March 24th, 2012 AT 8:13 PM
Tiny
SHAWN FIGUEROA
  • MEMBER
  • 5 POSTS
What is the VSS?
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Saturday, March 24th, 2012 AT 9:25 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The VSS -is the vehicle speed sensor
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Tuesday, March 27th, 2012 AT 1:19 AM
Tiny
SHAWN FIGUEROA
  • MEMBER
  • 5 POSTS
"RAZMATAZ" I've tried disconnecting the battery cables and making contact with the negative and positive cables for an hour then hooking back up and letting truck idle for 15mins before driving truck. Hoping to reset the computer. I was getting curious so I tried something. When the truck started acting up I pulled over and shut the truck off and took the key out of the ignition for about 5 seconds then started the truck and started driving again and the truck was shifting fine again! I tried this several times when the truck is acting up and every time the truck starts shifting fine again! What does that mean?
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Wednesday, March 28th, 2012 AT 3:17 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You need to have the VSS and the TPS: throttle position sensor checked-and have the computer rescanned again
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Wednesday, March 28th, 2012 AT 4:43 PM

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