<div dir="ltr"><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">Hi Fred,<br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">If you are trying to determine if there is voltage being applied to the solenoid you are best to connect a wire to the solenoid side of the gear lever switch near the bottom of the gear lever then connect a test light between that wire and ground.That will give you a positive indication that the solenoid is or is not being powered.<br><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">However there are other easier checks that will help you. <br><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">With the ignition on but the engine not running turn on the overdrive and, without touching the throttle you should hear the solenoid click in and out as you move the gear lever back and forth across the gate i.e. left to right.<br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">If you hear that noise then the overdrive gearlever switch is working okay.<br><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">Now, again with the ignition on but the engine not running put the gearlever in 4th gear and apply about 1/2 throttle. Now turn the overdrive switch on and off, on and off and you should hear the solenoid clacking in and out each time you operate the switch.<br>If you get that result, with the throttle depressed then the overdrive throttle switch is working. <br><br>You should get one clack noise when you turn the overdrive switch on <b>with the throttle closed</b> and no noise when you turn the overdrive switch off and then on again.<br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small"></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">An overdrive can reputedly stay in overdrive for some time after the solenoid power is disconnected <b><i>if </i></b>the bleed off port in the operating valve is blocked but I have never actually encountered that fault.<br><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">I suspect that you will find that the overdrive is staying in as a result of the solenoid is still being powered because once the hydraulic pressure is removed from the operating pistons, which is what happens when you de-energize the solenoid, there 8 pretty strong springs that move the overdrive out of operation.<br><br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small">Michael S<br></div><div class="gmail_default" style="font-family:comic sans ms,sans-serif;font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 28, 2017 at 12:46 PM, Fred Wescoe <span dir="ltr"><<a href="mailto:fredwescoe@gmail.com" target="_blank">fredwescoe@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>List,</div><div><br></div><div>Having just had the transmission and overdrive rebuilt, I am gun shy. I have never had a problem previously with an overdrive disengaging when it is switched off and I moved the shifter thru neutral and into 2nd. But, apparently that was the case before I purchased the car and I did not realize it. The overdrive appeared to work properly but in fact, it was not releasing when it was turned off and that caused the problem. I am thinking about adding a warning light that indicates the overdrive is still engaged even if the switch is off and I'm trying to figure out how to accomplish this.</div><div><br></div><div>I believe that a light in the power line with solenoid simply means that the solenoid is off but not that the overdrive is disengaged. The same is true with all of the other switches. </div><div><br></div><div>What is the wisdom of the list on how best to do this. How can a warning light be installed properly?</div><div><br></div><div>Thanks,</div><div><br></div><div>Fred</div><div>66 BJ8</div></div>
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