GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

Truck occasionally made a thump

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Old 09-16-17, 06:15 AM
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peak904
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Default Truck occasionally made a thump

Truck felt like it was looking for a gear while stopped but still in Drive. I thought it might be transmission but now the 4x4 light is blinking. Could it be the transfer is bad and the truck is continuously trying to find a solution?
Old 09-16-17, 04:57 PM
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tz693
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Old 09-18-17, 06:56 PM
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ALAN553
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Blinking full time 4x4 light wouldn't have anything to do with drive line clunk. Why would light be blinking if button
isn't pushed?
Old 09-18-17, 07:04 PM
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chiph9
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IIRC it blinks when it's trying to lock the center diff. Perhaps the seal leaked and the fluid damaged the motor or contacts and now it's stuck? Not sure.

Chip H.
Old 09-18-17, 09:27 PM
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Tracker1
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Default Propellor

I think that there was a recall years ago for the driveshaft propellor ? I think this causes a thump.
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