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How do you test OverDrive Solenoid 42RH


Old 01-26-2008, 06:37 PM
DAK_93 is offline
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Join Date: Jan 2008
Posts: 4
Default How do you test OverDrive Solenoid 42RH

Got no Over drive At all
Removed Switch
Got 12 volts to pin 4 and 6 on overdrive switch
Got 12 Votls to num 2 wire at plug on Trasmission
tried grounding #3 wire on plug at transmission I think thats is the overdrive Solenoid?
Also on the overdrive switch Should the button light up at all
got light to the small light on top
but button also has a light in the middle?
Got factory service manual but not enough exprience YET

thank you all for your help
1993 dakota 3.9 4x4 LE
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Old 01-26-2008, 08:25 PM
kahanabob is offline
Join Date: Sep 2006
Posts: 582
Default RE: How do you test OverDrive Solenoid 42RH

What you have done pretty much amounts to a test and you have proved it is bad. They do go out, my 90 went out during about 1992.
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Old 01-28-2008, 10:11 AM
lghtngblt02's Avatar
lghtngblt02 is offline
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Location: Lemoyne, Pennsylvania
Posts: 9,585
Default RE: How do you test OverDrive Solenoid 42RH

After you pulled the switch off, trying driving around without the switch. The tranny should go into like a default mode, with the ability to shift through all the gears, thats also like a test.There should be a light that lights thewhole button up (ORANGE) when engaged. My switch has broke before too, butyou can drive without it which entails noability to shift it in to drive. If it doesn't shift up into OD, then you have a bad sensor or internal probs.
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