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Old 12-15-2011, 11:15 PM   #11
motornut
78K & 79C Jimmys
 
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Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: Can anyone tell me what wires these are and if I need them ?

what i see is center valve covers= newer block

to plugs white four hole plug= for 400 tranny

green wire half melted plug =temp wire

two plugs in hand=big with two holes-oil sensor by filter-may work choke too

firewall air line by tranny dipstick =feed for heater controls -should come threw over air box inside behind glove box,run to contols

golf tee line maybe for cruise control vac
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1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
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