Jump to content

2007 1500 Trans wont shift!

najbrt1

Recommended Posts

najbrt1 New Member

najbrt1

Posted
Posted

Has anyone ever have this problem before? I took my truck in the snow did some drifts and donuts, then after i went to carwash and after washing it driving home the trans would rev high and the mph wouldn't go up!

 

  • 3 weeks later...
tanked_darren Senior Enthusiast

tanked_darren

Posted
Posted

Did you try starting the truck first? You have to put the shift lever into D

 

Sent from my Motorola DynaTAC using Tapatalk

 

 

mike94silverado Senior Enthusiast

mike94silverado

Posted
Posted

sure something didn't freeze up from the carwash? and before anyone says abuse, my work truck gets driven harder than drifting and donuts every day and the trans is fine at 90k so I doubt that......

rangerman185vx Enthusiast

rangerman185vx

Posted
Posted

Two things there is a speed sensor on the t case if it is malfunctioning the mph will read zero and not shift out of first. Second it could be a broken snap ring on the output shaft allowing the bearing to shift and where the speed sensor reads it will shift and not read correctly. I'm guessing the second. Does it happen all the time or intermittent. Also it might pop out of reverse if the snap ring is broke. Just saying. I just went through all of this with my 2007 gmc Sierra.

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted

Has anyone ever have this problem before? I took my truck in the snow did some drifts and donuts, then after i went to carwash and after washing it driving home the trans would rev high and the mph wouldn't go up!

 

 

Hey najbrt1,

 

I can understand why you would be concerned over this. Were you planning on having this addressed by your local dealership? We would be happy to work with you throughout the process. If this is something you would like us to assist with, feel free to reach out via PM with your name, contact info, and vehicle information (VIN, current mileage, involved dealership.)

 

We look forward to hearing back,

 

Jonathan A.

GM Customer Care

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   2 Members, 0 Anonymous, 353 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...