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[GMCnet] Shudder in 1st and 2nd - under fairly high throttle? [message #243550] Fri, 14 March 2014 21:52 Go to previous message
Rob is currently offline  Rob   United States
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma:
Senior Member
I'm almost at the end of my first week of ownership and noticed something that made me search the old posts...

When I'm accelerating fairly briskly (like I quite often do!) I noticed a bit of "shudder" in 1st and 2nd. Seems non-existant in 3rd. I wasn't really sure of its source - but started thinking that perhaps it was due engine mounts being worn or perhaps was odd torque steer or something else...

So I ran the engine with the cover off and there was very little movement when going between D and R - so I figured the mounts weren't the cause.

I then noticed that the transmission was down one pint of fluid - so I added that, but didn't get a chance to drive it again. Then tonight I was reading about kick down switches (good Friday night reading) and came across this post:

http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&rid=0&th=11530&goto=82361#msg_82361

Where "druber" asked: "Have you had any shuddering pulling away from a dead stop at a fairly high throttle?", in relation to trans fluid temps.

So - it made me think that perhaps the shudder could be related to the slightly low fluid. Is that crazy? Just wondering if others have experienced the shudder (it sounds like others have) and was curious what the issue may be. It's not the end of the world - but I'd prefer it wasn't there...

Perhaps it is now gone - with the fluid being topped up? I'll likely drive it tomorrow and see...

Thanks,

Rob
76 Royale - Rear Twins/Dry Bath
Victoria, BC
gmc@thebaileys.ca
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Rob - Victoria, BC - 76 Royale - Rear Twins/Dry Bath
 
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