it's non thirdgen..but I figure the system is probably similar. It's my 97 Chevy pickup.

The wipers on it don't work often. However...it seems that after you drive it about an hour...they start working just fine. I suspected the switch, because whenever the wipers don't work..the washer squirters don't work either. However..you can put the switch on..leave it on..nothing will happen..and then sometime later they start right up like nothing was ever wrong, without touching it.

Any ideas to narrow down my search?

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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

[This message has been edited by Jester (edited November 04, 2001).]

 

id say a bad ground

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90 RS 305 tbi, 4 3/4" cowl Hood, Edelbrock TES headers, Flowmaster exhaust, Crane roller cam, comp roller rockers, vortec heads/intake, ported tbi, w/new injectors, MSD probillet Distributer/ coil, 1 inch tbi spacer, air foil, 14x4 k&n flat base air cleaner, Rebuilt 700r4 w/ B&M shift kit, B&M Megashifter, 3.23 posi, 2 12 RF's with mtx amp, top of line alpine cd player, soon to have 90-91 gfx, z-28 wing, new paintjob, rims, and all new lowered suspension.

 

Yup, bad ground...

Run a ground wire from the motor frame to the firewall and see if the demons are exorcised.

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"So many Mustangs, so little time..."
ICON Motorsports

 

Any idea which of the 50 million wires coming from the column and/or wiper motor is the ground?

I guess I could go to the library and look it up...

 

None of them.

The ground is a little piece of brass strap across one of the rubber isolator bushings that mount the motor... when the rubber gets old, the strap isn't held tightly against the (chinesium) motor, and the dissimilar-metal corrosion sets in.

You have to just add a little piece of wire from the motor frame to the chassis. Do what the factory should have done but was too cheap to do.

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"So many Mustangs, so little time..."
ICON Motorsports

 

ahh you mean that ground I can certainly do that anyway...but wouldn't I be having more problems than just the wipers if the ground off the motor was bad?

 

No, at least I don't think so... I don't see how an ungrounded wiper motor could affect anything else very much. But then I'm from the second most idiotic state in the nation, so I don't have a very good grasp of these complicated things.

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"So many Mustangs, so little time..."
ICON Motorsports

 

Wiper cover. (circiut board)

Thats just my guess.

I've seen these things cause all kinds of different problems.
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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
and 2 POS commuters...

R.I.P. #3
"He can see air"

[This message has been edited by Engineboy (edited November 04, 2001).]