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Re: my '91 CVT has a flakey top switch/pump ????
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Posted by TomS [Email] (more from TomS) on Thu, 5 Jun 2003 22:02:21 Share Post by Email
In Reply to: Re: my '91 CVT has a flakey top switch/pump ????, JJ, Wed, 4 Jun 2003 12:12:48
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based on the schematics i have for a 87-88, the passenger door window switch should be a direct swap for the top,(none of the others!) so that is a quick test. each side of the switch activates a relay under the back seat, one for up, and one for down. the hydraulic motor goes to earth through the normally closed contacts of the non-energised relay. you should be able to hear them if you have the back seat out. the relay coils go to earth through the parking brake warning light switch, so make sure that the light on the dashboard goes on (and stays on) when you set the brake or your problem may be in that circuit. as for the delay, check to make sure the manual bypass valve (in the trunk) is completely closed? either that or air in the lines? there should be no delay in the motion of the top, and it should stop moving directly when you release the switch, except right before it drops on the windshield. Luck.

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