Quote:
Originally Posted by Ziegelsteinfaust
Right now I can barely go 10mph.
It makes a weird rattling sound as I drive.
It shudders and pulses as it does drive. Then hits hard if I go to fast.
If I rev the engine in gear to go faster. It makes just more noise.
The trans is a TH700r4.
Any ideas of what maybe wrong, and any external things I could check?
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Check in this order
1. Engine idling warm, park brake on, trans in Drive, check trans oil is at correct level
2. Check if the noise is present if the engine is running but the truck is stationary.
3. Does the noise increase if the engine speed increases?
4. Check the parking brake is not jammed on.
It sounds like the trans has broken some internal components ....if the above points dont yield a result, drop the pan and inspect for shrapnel....
TH700R4 trans are renowned for failure....however, if they are built correctly they can be made to last.
Good luck
kwmech....hahahaha....