Stagger Posted August 19, 2015 Report Share Posted August 19, 2015 My WIndsor isnt Shifting as it should Windsor -50, Semiautomatic * Checked transmissionfluid and the workshop had filled it with ATF oil, i changed it to SAE 10w as is stated in the manualprobably i overfilled it, i filled it from the top but then i realised that there where 3 plugs on the gearbox, drainplug in the bottom and just bove it there were another plug and probably it is here you fill it, not in the top plug.... but what is the use for the plug at the top? later on i saw that oil were dripping from the case around the tourqueconverter and then i thought that it was the converter that were leaking fluid.... damn, but when i opened the fillhole for the converter i saw that the fluid were ok in it, so the leaking probably came from an overfilled gearbox. Do someone of you have any other idea for me or do you think that it is the electrical thingys that ruins my shifting?The cables are pretty wornout.. Xcuse my english, im just an Swedish in love with old american cars..... 1 Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted August 19, 2015 Report Share Posted August 19, 2015 what is your base line rpm? Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted August 19, 2015 Report Share Posted August 19, 2015 If you do not have a service manual I suggest you get one before going any further. 1 Quote Link to comment Share on other sites More sharing options...
Stagger Posted August 19, 2015 Author Report Share Posted August 19, 2015 Plymouth Adams》 Actually i dont really know Don》i have one for the transmission in my computer i am going to read it carefully tomorrow Quote Link to comment Share on other sites More sharing options...
greg g Posted August 20, 2015 Report Share Posted August 20, 2015 (edited) Check the Imperial club website they have extensive coverage for the semi auto trans in their repair section. One canister is the governor, one is the solenoid. The governor senses speed and transfers that info to the solenoid which the shift, If the idle is to high the governor will not allow the shift. If the governor points are sticky the information won't get sent to the solenoid. Both units have internal contact points like the distributor or voltage regulator. Both may only need to have the points freed and cleaned up to allow proper operation. http://api.viglink.com/api/click?format=go&jsonp=vglnk_144003491372017&key=f0d80a80838754f59fa7fa48b7fd0bc8&libId=idjjen5f0100b88d000DAa1kj79oc&loc=http%3A%2F%2Fp15-d24.com%2Ftopic%2F39431-new-here-49-coronet%2F%23entry415525&v=1&out=http%3A%2F%2Fwww.imperialclub.com%2FRepair%2FLit%2FMaster%2F023%2FCover.htm&ref=http%3A%2F%2Fp15-d24.com%2Fforum%2F4-p15-d24-forum%2F&title=new%20here.....%20%2749%20coronet%20-%20P15-D24%20Forum%20-%20P15-D24.com%20and%20Pilot-house.com&txt=http%3A%2F%2Fwww.imperialc...r%2F023%2FCover.htm Edited August 20, 2015 by greg g 1 Quote Link to comment Share on other sites More sharing options...
Stagger Posted August 20, 2015 Author Report Share Posted August 20, 2015 Plymouth Adams... i am going to look at the rpm this weekend, what rpm should it be? Quote Link to comment Share on other sites More sharing options...
Stagger Posted August 20, 2015 Author Report Share Posted August 20, 2015 Greg G.... thanx alot, think ill clean them up this weekend Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted August 20, 2015 Report Share Posted August 20, 2015 475 on the 6 no matter the tranny... Quote Link to comment Share on other sites More sharing options...
dpollo Posted January 25, 2016 Report Share Posted January 25, 2016 Remember, your transmission will not shift until you release the throttle, that is why the engine idle speed is important. It should shift up even if the electrics are disconnected. As I understand it, the electrical components cause a downshift when activated so it may be possible to troubleshoot by disconnecting the governor. The upshift should then occur but it will not go back down until you stop the car. If disconnecting the governor allows the shift to happen then the governor points need attention. 1 Quote Link to comment Share on other sites More sharing options...
Frank Elder Posted January 25, 2016 Report Share Posted January 25, 2016 Fluid doesn't compress, drain it to the correct level, then the tranny won't have extra strain on it Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 26, 2016 Report Share Posted January 26, 2016 (edited) Do as they say above first...then.... A quick test ( short test only) to see if the 1949-53 M-6 transmission will up-shift is by cutting out all the electrical controls/ idle speed ect . To do this disconnect the red wire @ the "SOL" terminal on the 15 AMP Circuit breaker/ 12 OHM resistor box on the air cleaner brace bracket. Then try driving the car in high range and let up on the gas ...the transmission should instantly up-shift into direct high and you should be able to drive 50- 60MPH. You will not be able to have any automatic downshifts with the solenoid wire disconnected. Also to get it to pull out of high direct when coming to a complete stop push the clutch in and wait 5-10 seconds. It should pull back into 3rd gear assuming you were in high range. If the transmission now up-shifts you have an electrical wiring, solenoid, interrupter switch or some other problem with the transmission electrical circuit. If it does not up shift possibly an internal issue...blocker ring and sleeve, worn main drive pinion shuttle valve ect. If oil was running out the lower bell housing because of an over fill of the transmission the clutch disc might be wet with oil! Time to read the book! Edited January 26, 2016 by Dodgeb4ya Quote Link to comment Share on other sites More sharing options...
Cairy hunt Posted June 3, 2016 Report Share Posted June 3, 2016 Does anybody know the fluid capacity of the M6 transmission? I've got a 51 desoto tip toe, was working fine, then started shifting up (2\4) slowly but after being parked up a while it's not shifting up at all. No bad noises and goes into freewheeling mode, just doesn't shift. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted June 4, 2016 Report Share Posted June 4, 2016 (edited) Fill it till it's full. 10W passenger side fill plug. Edited June 4, 2016 by Dodgeb4ya Quote Link to comment Share on other sites More sharing options...
Cairy hunt Posted June 4, 2016 Report Share Posted June 4, 2016 Cheers. Sorted now, was the governor. Quote Link to comment Share on other sites More sharing options...
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