Shutter when traction control off and vibration at 90 mph - Cherokee SRT8 Forum
WK1 Troubleshooting / Problems Discussion / Dealer Service If you are having some problems with your Jeep Grand Cherokee SRT8 and need assistance in troubleshooting and diagnosing the problem, this is the proper place to discuss it. Were you treated fairly or poorly at a dealer? Warranty issues? Let us know.

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post #1 of 11 (permalink) Old 12-10-2012, 06:43 PM Thread Starter
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Shutter when traction control off and vibration at 90 mph

Couple issues but not sure if related. Right at 90 I get pretty good vibration. Thought it could be tires out of balance but also, when I turn off traction control, slight shutter at low speed/rpm? Does transfer case shut off electronically past any speed? Shutter is there at all speeds when Traction control off.

Seal leaking on transfer case but I've seen that on all Jeep SRT8's. Also hear a slight sound of hum or whine when you accelerate which eventually goes away. Slight roughness or small vibration when the rear end hunkers down when u are at high speeds and get on it.

Any ideas before I bring to dealership?

Really appreciate any input, thanks much!

Tim
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post #2 of 11 (permalink) Old 12-11-2012, 03:57 AM
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Bump for ya. Wish I could help.


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post #3 of 11 (permalink) Old 12-11-2012, 04:14 AM
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check your tc oil prob low since you said they are leaking , also when was the last time they were changed? and replace the seal
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post #4 of 11 (permalink) Old 12-11-2012, 06:50 AM
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Yeah get that TC fixed up and fluid changed first. After I changed mine it was night and day different.


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post #5 of 11 (permalink) Old 12-11-2012, 07:43 AM Thread Starter
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Thanks guys! I'm going to get this done ASAP and makes sense; hopefully not too late. I have an 09 w/57k miles. Anyone know the powertrain warranty for the SRT8's??
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post #6 of 11 (permalink) Old 12-11-2012, 07:44 AM
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Good Luck Bud

I'm slowly getting back into the mix. Been a long road
between the Jeep and Life. Lets see where it leads this time......

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post #7 of 11 (permalink) Old 12-11-2012, 08:00 AM Thread Starter
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Thanks ill keep you posted

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post #8 of 11 (permalink) Old 12-11-2012, 05:36 PM
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When you turn off the TC you will get some noise which is natural. It's the transfer case engaging the front end drive clutches. They all do it. What speeds are you talking about? What year is the truck and miles? My guess is get the drivetrain serviced if it's got some miles on it and you should be good to go.
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post #9 of 11 (permalink) Old 12-11-2012, 06:26 PM
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What would cause a high speed vibration? TC still working at high speeds like 70-80 mph?


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post #10 of 11 (permalink) Old 12-11-2012, 06:37 PM
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Many Jeeps have the 70 mph approx.Vibration. I got rid of my run flats and serviced the drivetrain and now it is dramatically better. Almost gone. I know some guys have gone to great lengths to completely remedy it. Some successful, some not.
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