Windshield wiper
- Thread starter 88 gbody
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Just add them. What's so hard about it? 🙂
I've never done this before, but you're wanting to add RPO CD4. Get ready. Bend over...it's probably going to cost you, even if you find good used stuff.
First, you need to get the delay switch inside the column. This is an expensive part. Kinda hard to find, but not impossible. Not like the part that's coming up.
GM p/n 7843683. This is assuming you have tilt wheel as well. GM p/n for NON-tilt would be 7842716, and its even more rare. Even used I've seen these go for $75-ish.
Optional- you can get a delay wand, but your current wand should work. The switch is what determines delay settings, it just helps that the wand is printed to match. But not required.
GM p/n 25031456. Aftermarket may work, but it HAS to be for 84-up with delay.
Luckily the WSW motors are pretty much the same between pulse (delay) and non-pulse. Now, you need to add those park switch contactors inside the motor. The contactors actually are needed to touch the next part below.
GM p/n 22054236. These are just spring metal tabs that clip on to the switch (#4 below) and you can get them off near any CD4 equipped car if you can't find them new.)
And one last thing. You need to find the hen's tooth out of the bunch. The hardest part of your journey. These are unobtanium.
GM p/n 22039684, the pulse circuit board/cover assembly (#1 on the drawing below).
I've never done this before, but you're wanting to add RPO CD4. Get ready. Bend over...it's probably going to cost you, even if you find good used stuff.
First, you need to get the delay switch inside the column. This is an expensive part. Kinda hard to find, but not impossible. Not like the part that's coming up.
GM p/n 7843683. This is assuming you have tilt wheel as well. GM p/n for NON-tilt would be 7842716, and its even more rare. Even used I've seen these go for $75-ish.
Optional- you can get a delay wand, but your current wand should work. The switch is what determines delay settings, it just helps that the wand is printed to match. But not required.
GM p/n 25031456. Aftermarket may work, but it HAS to be for 84-up with delay.
Luckily the WSW motors are pretty much the same between pulse (delay) and non-pulse. Now, you need to add those park switch contactors inside the motor. The contactors actually are needed to touch the next part below.
GM p/n 22054236. These are just spring metal tabs that clip on to the switch (#4 below) and you can get them off near any CD4 equipped car if you can't find them new.)
And one last thing. You need to find the hen's tooth out of the bunch. The hardest part of your journey. These are unobtanium.
GM p/n 22039684, the pulse circuit board/cover assembly (#1 on the drawing below).
I guess I'm lucky, grabbed up an NOS one for $58 shipped. Rare/super hard to find, hell yea. Was looking for years for one for the on again/off again wish to use the newer delay motor instead of the '80-'83 one I have. Non-tilt '82-'83 switches are just as rare/super hard to find.
I spent the better part of 2 years scouring eBay for switches and motors and the best I could come up with was NOS in-dash delay switches(D6338A), some with faceplate. Then one day I almost wet myself when I found a used motor with circuit board for a song here on the forum.
I just checked Chicago Muscle Car Parts and they allowed me to put one in my cart... Don't know if they've actually got it on-hand though:
I just checked Chicago Muscle Car Parts and they allowed me to put one in my cart... Don't know if they've actually got it on-hand though:
In actuality, if you find a new GM ACDelco park switch (#4) it comes with the contactors (#3). A bit out of the way to get some, but it's another option.
BTW, while you're inside the column yanking junk out, it might be a good time to replace the turn signal switch as well.
Again, assuming you have a console shift with pulse wipers and tilt, you will need turn signal switch AC Delco #D6222. GM p/n 1997983 (Superseded by 1997988). Otherwise, if you have column shift, it's 1997984, AC Delco #D6223. Aftermarket makes them too, but I have no idea on quality.
Isn't so simple is it? You can get lost in the different parts combos depending on the options.
BTW, while you're inside the column yanking junk out, it might be a good time to replace the turn signal switch as well.
Again, assuming you have a console shift with pulse wipers and tilt, you will need turn signal switch AC Delco #D6222. GM p/n 1997983 (Superseded by 1997988). Otherwise, if you have column shift, it's 1997984, AC Delco #D6223. Aftermarket makes them too, but I have no idea on quality.
Isn't so simple is it? You can get lost in the different parts combos depending on the options.
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I mentioned before about if you buy a new GM park switch, you will find 22038796 superseded to 22063283. Both switches conveniently came with contactors, which you will need for your CD4 conversion. The originals used 2 contactors, the 283 contactor comes mostly with 3 pre-installed, but sometimes 2. There should be a sheet included with the newer 283 to show which contactors are used with which cars if it has 3 prongs. In other words, the newer version can be used across more platforms than the original 2 contactor style. Of course, if you don't need the pulse, you could just pull off the contactors. Like I said, the addition of the contactors and CD4 cover are the ONLY differences between the motors. The motor, gear, frame, park switch, and armatures are all the same whether pulse or not on 84-88 G-body.
I dug out mine (796) and it has 2. I could not find any new contactors by themselves. Never fear if you need to find contactors as they simply plug into the switch, so you could get them off nearly any later model GM motor in the junkyard that came with pulse wipers. Technically slide over the male prong on the switch.
Here's a pic of a 283 switch. You can see the third tab on the right where the third contactor would attach if needed. G-body had this particular arrangement of contactors as shown. Some other cars would differ.
I dug out mine (796) and it has 2. I could not find any new contactors by themselves. Never fear if you need to find contactors as they simply plug into the switch, so you could get them off nearly any later model GM motor in the junkyard that came with pulse wipers. Technically slide over the male prong on the switch.
Here's a pic of a 283 switch. You can see the third tab on the right where the third contactor would attach if needed. G-body had this particular arrangement of contactors as shown. Some other cars would differ.
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BTW, here's cars to check for the CD4 circuit board cover. This is a list in which the CD4 circuit board covers were used. Remember, it has to have the delay wiper option CD4 to apply. These circuit boards can't be THAT hard for anyone who knows electronic circuitry. I can hardly melt solder, let alone fix one of these, but if it's do-able, anyone that CAN figure out how to fix them can make a mint doing it.
Here's a CD4 circuit board on the "other side" that you can't see with the cover off. Credit to El Camino forum member "Shiddy" who is trying to figure these things out.
Here's his attempt at a schematic. I have NO idea how accurate it is. I like the description of "Park Lock Relay Thing idk". 🙂 Although it may give insight to those that know on how/what to check to determine fail points.
Here's his attempt at a schematic. I have NO idea how accurate it is. I like the description of "Park Lock Relay Thing idk". 🙂 Although it may give insight to those that know on how/what to check to determine fail points.
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