I received the reconditioned wiper motor from the Wiperman today. Looks beautiful. Includes new rubber grommets for the transmission arms and a cute little spring loaded lock clip to hold the arms on. I was glad to get this as I had to fabricate a clip last time I was into these wipers.

The package was delivered to the office this morning, and I went home at lunch and just put that sucker in the truck. Took about 45 mins. Remembered once again why I hate working under the dash.

I recently installed a dual fuel pump in anticipation of the rebuilt vacuum motor.

Fired up the truck and the wipers work fine on a dry windshield. So I went for a drive to see how the wipers would work when I stepped on the gas.

Soon as I put my foot down on the pedal, the wipers come to a dead stop. Now the windshield is dry, but I was really hoping that the vacuum pump half of the fuel pump would help. My vacuum gauge connected to the wiper line showed about 14 when accelerating.

When I had the motor out, I tried the arms from under the dash, and they seemed to be stiff about half way through the stroke. They also squeak a bit. The stud that connects to the wiper arm also seems loose as if a bushing is worn where it comes through the cowl.

This has got me thinking about replacing the wiper transmission assemblies. Seems I saw these were being reproduced.

Any thoughts about this? Shouldn't the dual fuel pump be giving me enough vacuum to operate the wipers during acceleration?

Kurt