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2003silverado's avatar
2003silverado
Explorer II
Apr 06, 2020

Silverado 2500hd 6l90e transmission service

Looking for advice on doing a pan drop and filter replacement on my 2012 Silverado 2500hd with the 6.0 gas and 6l90e transmission. My main question is does the exhaust pipe need to be lowered to completely remove the pan? The only videos I see on the net are half ton silverados where the exhaust pipe needs to be lowered. On my 2500hd the exhaust pipe does indeed run below the pan, but it appears to have enough clearance to work it off, but I know looks can be deceiving.

Anybody here ever done this to a similar model year truck to give advice?

Thanks!
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  • JIMNLIN's avatar
    JIMNLIN
    Explorer III
    Apr 08, 2020
    ls1mike wrote:
    blofgren wrote:
    I'm glad to hear they improved this. I had to drop the exhaust on my 2001 Yukon and it was still a major PITA to get the pan to clear. :M


    Half ton vs 3/4-1 ton. 4L60E vs 6L90E. Nothing is shared between them.

    LOL..1500 GM trucks haven't used the old 4L60E tranny in years. The wifes 2016 1500 chevy 5.3 has the 6L90E tranny.
    I asked my chevy dealer to change fluid and filter in the L90E in the wifes truck. At 49k miles they recommended a tranny flush now and a filter change at 75k miles due to this trucks usage.
    If your 2500 doesn't have the cross over pipe under the pan why wouldn't it be a straight drop like older GM trucks.
  • ls1mike's avatar
    ls1mike
    Explorer II
    Apr 07, 2020
    blofgren wrote:
    I'm glad to hear they improved this. I had to drop the exhaust on my 2001 Yukon and it was still a major PITA to get the pan to clear. :M


    Half ton vs 3/4-1 ton. 4L60E vs 6L90E. Nothing is shared between them.
  • blofgren's avatar
    blofgren
    Explorer
    Apr 07, 2020
    I'm glad to hear they improved this. I had to drop the exhaust on my 2001 Yukon and it was still a major PITA to get the pan to clear. :M
  • 2003silverado's avatar
    2003silverado
    Explorer II
    Apr 07, 2020
    Thanks for the help. I'm going to put a drain plug in the pan so I can do the service like you are. Planning to drain the fluid every 15k miles and every other time change the filter.
  • ls1mike's avatar
    ls1mike
    Explorer II
    Apr 07, 2020
    2003silverado wrote:
    Looking for advice on doing a pan drop and filter replacement on my 2012 Silverado 2500hd with the 6.0 gas and 6l90e transmission. My main question is does the exhaust pipe need to be lowered to completely remove the pan? The only videos I see on the net are half ton silverados where the exhaust pipe needs to be lowered. On my 2500hd the exhaust pipe does indeed run below the pan, but it appears to have enough clearance to work it off, but I know looks can be deceiving.

    Anybody here ever done this to a similar model year truck to give advice?

    Thanks!


    Just did it 3 months ago in my 2017, plenty of room. It is a 45,000 mile service transmission. A complete flush is about 12.5 quarts. A pan drop and fill is about 6.
    I did a pan drop, filter and fill and drove it 500 miles, drained it from the drain plug and filled it. It is nice and clean.

    Next I will disconnect a cooler line and do fluid transfer. I am at 33,000 miles.
  • ExxWhy's avatar
    ExxWhy
    Explorer
    Apr 06, 2020
    I have an 04 2500HD and there was enough space. Afraid that means little.

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