Rough transmission downshift
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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Rough transmission downshift in Cadillac Escalade Forums; When slowing down, like coming to a stop light from 40 MPH or so, you can feel the transmission downshift ...
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    caddydaddy's Avatar
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    Rough transmission downshift

    When slowing down, like coming to a stop light from 40 MPH or so, you can feel the transmission downshift twice and it's kind of harsh. Any ideas on what's going on? 99,000 miles on it now.
    Also, when going at parking lot speeds, just coasting, if you give it a little throttle, there will be a bit of hesitation, then there's a "clunk" and noise, and then the truck moves a bit faster.
    I took it to a dealer and they just told me that it's just getting wear in it. The trans in all the other cars I've owned with 70,000 more miles had no harshness. Or is this a truck transmission thing?

    Thanks!

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    the cadillac man's Avatar
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    Quote Originally Posted by caddydaddy
    When slowing down, like coming to a stop light from 40 MPH or so, you can feel the transmission downshift twice and it's kind of harsh. Any ideas on what's going on? 99,000 miles on it now.
    Also, when going at parking lot speeds, just coasting, if you give it a little throttle, there will be a bit of hesitation, then there's a "clunk" and noise, and then the truck moves a bit faster.
    I took it to a dealer and they just told me that it's just getting wear in it. The trans in all the other cars I've owned with 70,000 more miles had no harshness. Or is this a truck transmission thing?

    Thanks!
    I would check the transmission fluid level(like it shows in the manual) and see if it is low as mine did this and the fluid was low I added some and rechecked and it is normal and no harsh shifting

    But these are trucks through and through so it will have different characteristics then a car(even though the ride is like a car)i

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    Re: Rough transmission downshift

    The fluid level was normal.

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    the cadillac man's Avatar
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    Quote Originally Posted by caddydaddy
    The fluid level was normal.
    Has a tuner been used on the truck I know sometimes they can change the shift mapping(that's what it sounds like)in the PCM

    is there any whining from the tranny while the truck is moving?

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    caddydaddy's Avatar
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    Re: Rough transmission downshift

    Quote Originally Posted by the cadillac man View Post
    Has a tuner been used on the truck I know sometimes they can change the shift mapping(that's what it sounds like)in the PCM

    is there any whining from the tranny while the truck is moving?
    No tuner used. My Uncle was the original owner and he's 70+ and not into performance. There are no strange noises. It up shifts fine, but downshifts are harsh.

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    the cadillac man's Avatar
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    Quote Originally Posted by caddydaddy

    No tuner used. My Uncle was the original owner and he's 70+ and not into performance. There are no strange noises. It up shifts fine, but downshifts are harsh.
    I would consult with a transmission shop as something doesn't sound right or even a different gm dealer

    Since the truck is stock it shouldn't do like that

    Mine has 164,000(give or take a few miles)on the clock had it shifts smooth both up and down(just have a bit of whine from where someone didn't fill the fluid up to proper level at some point in time)

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    Re: Rough transmission downshift

    My EXT does the same thing. If you coast and then step on the gas, you will get a clunk as the trans or drivetrain "reengages". It sort of reminds me of a ujoint starting to fail. Also, when coming to a stop, there is a lighter clunk as she drops back into first... I have not made time to dig into it yet but will let you know if I discover the cause.

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    JamieD is offline Cadillac Owners Member
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    Re: Rough transmission downshift

    Quote Originally Posted by 90limited View Post
    My EXT does the same thing. If you coast and then step on the gas, you will get a clunk as the trans or drivetrain "reengages". It sort of reminds me of a ujoint starting to fail. Also, when coming to a stop, there is a lighter clunk as she drops back into first... I have not made time to dig into it yet but will let you know if I discover the cause.
    I have exactly that happening with my ESV. Took it to the shop where I bought it (my buddy is the mechanic) and he said the universal joints were fine...Hopefully it's "normal" and nothing serious.

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    Re: Rough transmission downshift

    Quote Originally Posted by 90limited View Post
    My EXT does the same thing. If you coast and then step on the gas, you will get a clunk as the trans or drivetrain "reengages". It sort of reminds me of a ujoint starting to fail. Also, when coming to a stop, there is a lighter clunk as she drops back into first... I have not made time to dig into it yet but will let you know if I discover the cause.
    That's how mine is. It is like it reengages when you give it some throttle. I checked the U-joints and they are fine. The dealer said they were fine as well. With the truck on a lift and in neutral, I can hear the clunk noise inside the trans when I rotate the driveshaft back and forth.
    I'd just like to know what it is and if it's just going to break one of these days!

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    Re: Rough transmission downshift

    Quote Originally Posted by JamieD View Post
    I have exactly that happening with my ESV. Took it to the shop where I bought it (my buddy is the mechanic) and he said the universal joints were fine...Hopefully it's "normal" and nothing serious.
    Hello JamieD,

    I hope it is normal also and does not cause your vehicle any troubles. If anything in the future arises or you have questions, don't hesitate to reach out to us for assistance!

    Sincerely,

    Laura M.
    Cadillac Customer Service

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    JamieD is offline Cadillac Owners Member
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    Re: Rough transmission downshift

    Thanks, Laura. I'm new to the all-wheel-drive scene, so there are many things that I think are weird sounding, but my friend tells me are normal. The Escalade is a 2005 with just over 200000kms on it, so it's hard to tell what's normal or not.

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    Quote Originally Posted by JamieD
    Thanks, Laura. I'm new to the all-wheel-drive scene, so there are many things that I think are weird sounding, but my friend tells me are normal. The Escalade is a 2005 with just over 200000kms on it, so it's hard to tell what's normal or not.
    Mine has done the clunk from time to time from slack in the drivetrain and it is a all wheel drive

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    HoustonBussa is offline Cadillac Owners Member
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    I seem to experience this "clunk" as well in my 2wd. Mostly when coming to a stop and was just thinking about coming on here to inquire.

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    Re: Rough transmission downshift

    Quote Originally Posted by JamieD View Post
    Thanks, Laura. I'm new to the all-wheel-drive scene, so there are many things that I think are weird sounding, but my friend tells me are normal. The Escalade is a 2005 with just over 200000kms on it, so it's hard to tell what's normal or not.
    You are welcome JamieD. I understand not knowing what is "normal" or not could be annoying, however, if your friend who is a mechanic gives you that advice, I would listen to them. Enjoy driving your Escalade

    Laura M.
    Cadillac Customer Service
    JamieD likes this.

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    VQT
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    Re: Rough transmission downshift

    When was the last time you change the transmission fluid? What does the manual maintenain schedule read about change trans. fluid frequency?

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