 DEAD WIPER MOTOR, wipers worked last fall but not now |
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| CHAZT54 |
 May 20 2010, 11:32 AM
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#1
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CHAZT54  Group: Members Posts: 19 Joined: 29-December 08 From: New London, Wisconsin Member No.: 9,878 Region Association: Upper MidWest  |
I've got a '74 2.0 and am now getting it ready for fist show of the season. The windshieled wipers worked fine last fall when I parked it but don't now for some reason. I did restore the dash & instruments over the winter including cleaning up the heat/defrost controls, installing a push-button start switch (key switch was unreliable in crank position), and installed a MOMO wheel w/hub. The connections at the wiper motor, fuse block, and bottom of stalk switch are all solid. I get no power at the wiper motor connection with key on and wiper switch on. Could this be a dead spot in the wiper motor OR poor contacts in the stalk switch? I dread pulling those stalk switches from the column. Hoping for something simple. OTHER IDEAS? (IMG:style_emoticons/default/confused24.gif) CHARLIE |
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Replies(1 - 8)
| detoxcowboy |
May 20 2010, 11:40 AM
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#2
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect..
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| CHAZT54 |
May 20 2010, 12:23 PM
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#3
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CHAZT54 Group: Members Posts: 19 Joined: 29-December 08 From: New London, Wisconsin Member No.: 9,878 Region Association: Upper MidWest |
QUOTE(detoxcowboy @ May 20 2010, 09:40 AM)  You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect.. RELAY? I didn't know there was a relay involved with the wipers. Where do I find this puppy? |
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| eitnurg |
May 20 2010, 12:35 PM
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#4
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Country Member Group: Members Posts: 150 Joined: 31-December 02 From: Nairobi Member No.: 62 Region Association: None |
Pulling the stalk switch is no drama at all. Only confusing part is (ISTR) that wiring colours within the switch differ from the corresponding connections in the multi-pin plug (& which the wiring diagram refers to).
It may be that wiper spindles have siezed from non-use, and switching them on has melted the plastic contact holders in the stalk switch so that the contacts no longer contact. Means "new switch". Don't ask me how I know. |
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| detoxcowboy |
May 20 2010, 12:47 PM
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#5
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
QUOTE(CHAZT54 @ May 20 2010, 11:23 AM) QUOTE(detoxcowboy @ May 20 2010, 09:40 AM) You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect.. RELAY? I didn't know there was a relay involved with the wipers. Where do I find this puppy?  not all car have this but I have a 74 it does, you have a 74 does it? |
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| CHAZT54 |
May 20 2010, 04:22 PM
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#6
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CHAZT54 Group: Members Posts: 19 Joined: 29-December 08 From: New London, Wisconsin Member No.: 9,878 Region Association: Upper MidWest |
QUOTE(detoxcowboy @ May 20 2010, 10:47 AM) QUOTE(CHAZT54 @ May 20 2010, 11:23 AM) QUOTE(detoxcowboy @ May 20 2010, 09:40 AM) You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect.. RELAY? I didn't know there was a relay involved with the wipers. Where do I find this puppy? not all car have this but I have a 74 it does, you have a 74 does it? That's a good question. I never looked for it. I will have to check when I get home tonight. Thanks for enlightening me. |
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| SLITS |
May 20 2010, 05:18 PM
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#7
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
That is the "interval" wiper relay .... I'm not really sure but I think you push up on the stalk to make the wipers cycle once with that option.
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| detoxcowboy |
May 20 2010, 06:58 PM
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#8
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
QUOTE(SLITS @ May 20 2010, 04:18 PM) That is the "interval" wiper relay .... I'm not really sure but I think you push up on the stalk to make the wipers cycle once with that option. pull down actually then they work (wipe once) intermitently about every 8 seconds (guessing) or so.. |
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| brp986s |
May 20 2010, 09:47 PM
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#9
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Member Group: Members Posts: 434 Joined: 27-September 07 From: los angeles Member No.: 8,167 |
There is a wiper relay. It's on top of the fuse plate, and if I recall, it's the standard round one that controls the headlight motors and etc., so you can swap for a quick test.
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