Our toyota 7FBEST15 has a drive fault. there is no fault codes. when driving forward or reversing the truck starts to shudder (shake)
i was thinking along the lines of accelorater pot or maybe the speed bearing?? any ideas? has any one else had this?
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Hello
Is this unit an SC2000 or an newer type
Perhaps you need to callibrate you pot but than you need an callibrator for the SC2000.
It happens more.
cheers
Is this unit a 3 Wheel unit?? If so, here in Canada we have seen allot of gear box inner bearing or planetary gears bearings go faulty due to heat exposer to long runs. Check/Drain fluid look for contaminates ( Bits and pieces) Change fluid every P.M. with ATF Dexron 3 instead of gear oil. If its a 3 Wheeler????
no the brakes are fine, its somthing electrical.
Are the brakes locking up or sticking......parking brake?????
it's the same with the truck jacked up. the wheels juder. i'm getting the correct voltage to the accelerator pot. i'm just wondering if its the speed bearing in the motor or would that bring up a code? might need the handheld on this one.
Try jacking the truck up and see if it runs smoothly jacked up? Try work out if its a mechanical fault or load related. Had a judder problem on a Hyster once wheel was jamming/locking up.
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