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#1 |
Registered User
![]() Join Date: Aug 2010
Location: Mooresville, NC
Posts: 2,675
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My possessed windshield wipers...
I have an '84 2wd SWB. EVERY TIME I turn the key on or start the truck, the wipers come on, wipe the window a couple times and shut off on their own.
Any ideas? Switch? or is there a relay?
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Jeff 1972 Blazer CST 2wd- My son Sam's Project "S" Project "S" 1970 Suburban - SOLD "One Bad Burb" Photobucket Album 1986 C30 Crewcab - 63K original miles, original paint Members I have met: mikey531, gcburdic, bashed, burbman69, TonyPieras, Blazester, GCncsuHD, custombuilt67-72, tsnow678, highrpm, PanelDeland, tanman722001, 47thriftmaster, babyblueoval, 68stepbed, JesseWebb, Andy4639, xs-style, TobyArnot, BigOrange, frednoah, brn_agn, k5hart, Graham57a, bhelton, AJohn6, SilverC10, 69CST, '71 Flame, RaceAGMC, Liz, Josh, MattPSU, 68corvair, Chevy350V8, mdeal, ccrorymc, mrhurt73, dmxxpert, Custom68, 84GMC, BionicABs1, BigBlockBurris, Ebfabman, ATP... |
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#2 |
Registered User
Join Date: Apr 2009
Location: Waynesfield Ohio
Posts: 1,991
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Re: My possessed windshield wipers...
This is a common problem on the 84-91 columns.
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![]() 1949 Five Window, 1973 Step Side, 2000 Z71 |
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#3 |
Registered User
Join Date: Jun 2010
Location: Dotsonville, Tennessee
Posts: 194
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Re: My possessed windshield wipers...
I have an '88 S15 that has a similar wiper issue; most of the time when using the blinker lever (right or left) the windshield wipers run a couple of cycles. Sometimes the wipers run after hitting a bump, or for no reason at all. Always just one or two wipes. I've learned to live with it, but am curious to know the cause.
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'65 GMC Suburban 4X4, '71 GMC 4X4 LWB - The Yellow Eyed Monster, '86 C10 Silverado - Oldest Daughter's Pickup, '88 S15 GMC Work Truck, '95 GMC SLE 4X4 - Second Daughter's Truck, '99 K1500 GMC Suburban Road Trip Machine, 2000 C2500 W/T Utility Bed Work Truck, '03 Silverado - Wife's Grocery Getter |
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#4 |
optomistic ah-so
Join Date: Mar 2009
Location: Charlotte, NC
Posts: 544
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Re: My possessed windshield wipers...
Is your truck equipped with the intermittent wipe feature? It works off a capacitor, and this behavior sounds typical of a capacitor building a charge when it's not supposed to...I hate proposing an idea without being more specific and having a solution, but comparing the condition of the switch circuit to a wiring diagram may reveal something grounding or that the intermittent switch isn't closing the circuit off (for the capacitor) when it should.
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Rubbing is Racin' Ribbing is Bench Racin' 1970 C-10 lwb Fleetside. Originally 350 2-bbl 3-on-the-tree, m/b, m/w, m/s no a/c. Currently running on a '76 Camaro 305. ![]() |
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#5 |
Senior Member
![]() Join Date: Aug 2011
Location: Reno, Nv.
Posts: 1,432
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Re: My possessed windshield wipers...
My 83' did that for years, finally I replaced the motor assembly and that fixed it.
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1927 Willy's Knight 24,000 original miles, 1958 Impala 283/Powerglide, 1964 C-30 383/4 speed, 1971 Monte Carlo 350/350, 1972 GMC K2500 350/350, 1976 Chev. K10 350/350, 2006 GMC Sierra 2500HD LBZ Duramax/Allison, 2006 Chev. Silverado K3500 LBZ Duramax/Allison |
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#6 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: My possessed windshield wipers...
The delay module is under the steering column a plug on each end with aluminum fins, "normally" this is the cause of the "fantom" wipe. Remove the plastic and metal plate below the column on the dash and you will see it. It slides onto tabs on the column.
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#7 |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: My possessed windshield wipers...
I had this problem on mine and a couple other Chevys. Wing windows let moisture in and and destroy the switch. So replace the switch and no more problem
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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