need help finding short

1995 CHEVROLET TRUCK
160,000 MILES
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JEREMYWJ30
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my truck was driving fine then the next time i started it the tach didnt work the shift indicator light wasnt on the speedo doesn't work and the trans starts out in 3rd if i manually downshift i have second but no 1st and no 4th but reverse is fine i tested the vss for ohm's and reads about 1400. i would like to know what do these circuits all have in common and how or where to start testing..oh yea engine ground is good..please help me
Sep 1, 2011 at 6:45 PM
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DOCFIXIT
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Test for VSS is done by checking AC generated voltage attach meter across VSS etrminals jack raer wheels off ground in neutral spin tire @ 3mph AC volts between .1 and .5 if not VSS faulty
Sep 1, 2011 at 6:57 PM