1991 GMC Sonoma SLE 4.3L Rear Brakes
replaced front loaded calipers, and rear cylinders. had rear braskes before, but now no pressure to rears. have pressure to dump valve, but not after. have replaced dump valve and ecu for rwal, to no avail. no codes, but main ecm will not communicate with scan...
FIX posted 3/18/2004
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Message Closed w/FIX
Vehicle Data1991 GMC Sonoma SLE
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Message Closed w/FIX
Vehicle Data
1991 GMC Sonoma SLE
VIN | 1GTDT19Z2M |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Affected | Rear Brakes |
Conditions | Inop |