Thread: Whats This???
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Old 01-13-2012, 06:33 PM   #7
gchemist
BAD BOW-Silverado XST
 
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Join Date: May 2000
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Re: Whats This???

First there are two of those "thingys". The driverside one controls the torque converter lockup. It must have a vacuum source. The passengerside one controls timing. If you follow the wiring harness, it goes the ECM behind the glove box. The other wires go to the distributor. Now if you only have one and a 350THC or 700R4, it's for the torque converter lock.
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