thebovees
Driving Cruisers since '67
Speedometer bounce is gone. Replaced the speed sensor and not a bounce in a 15 mile test drive. And, a very important side benefit, the transmission hesitation I was also experiencing went away as well. Talked with my Toyota mechanic who indicated that speed sensor signal gets to the transmission controller and can effect the shifting. What caught me with that was that yesterday in the Walmart parking lot the speedometer, at a stop, was showing 100 MPH and I could not get it into reverse. Finally the speedometer dropped to 0 and I could get it to shift into reverse.
So, I was expecting to have to swap out the transmission shift solenoids and now that is off the table. Now, with 473,000 miles I can expect a few more.
Searching the FSM I saw a page telling how to test the speed sensor and found that the output of the sensor is a DC voltage, 0 to 10 volts in direct correspondence to the speed: 0 volts is 0 MPH and 10 volts gives the full speed of the speedometer; mine 130MPH.
So, I was expecting to have to swap out the transmission shift solenoids and now that is off the table. Now, with 473,000 miles I can expect a few more.
Searching the FSM I saw a page telling how to test the speed sensor and found that the output of the sensor is a DC voltage, 0 to 10 volts in direct correspondence to the speed: 0 volts is 0 MPH and 10 volts gives the full speed of the speedometer; mine 130MPH.
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