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02-11-2007, 12:07 PM
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#1 |
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Registered User
Join Date: Dec 2006
Location: Grayslake, Ill.
Posts: 38
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Trans control relay needed?
What in the world does the trans control relay do? I have the part numnber of 3990842 (littlefuse). It has a seperate harness that connects to the main harness above the hood hinge. There is also what appears to be another relay next to it that is connected to the same harness, the ony thing the wiring diagram lists is: RELAY ASM CONT SW. The harness that I have in the truck has 4 wires that have been butchered by the previous owner, and do not connect to anything. Any info would help and would be much appreciated.
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02-11-2007, 12:14 PM
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#2 |
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Registered User
Join Date: Dec 2006
Location: Montana
Posts: 223
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Re: Trans control relay needed?
This is an early emission control system that is almost always disabled. I bet if you look down on the passenger side of your transmission just above the pan lip, you will find that the transmission switch is either unplugged or gone.
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02-11-2007, 12:39 PM
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#3 |
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Registered User
Join Date: Dec 2006
Location: Grayslake, Ill.
Posts: 38
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Re: Trans control relay needed?
Nope, nothing on the trans. I am guessing that this is no longer needed.
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02-13-2013, 12:54 PM
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#4 |
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Registered User
Join Date: Apr 2009
Location: Edmond, OK
Posts: 393
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Re: Trans control relay needed?
Had to save an old thread.
Is the relay on the left the emission control? What is the relay on the right? Posted via Mobile Device
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1951 Chevy 3100/S-10: http://67-72chevytrucks.com/vboard/s...d.php?t=406072 1957 Chevy 3200 1971 2WD Blazer - Sold |
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