It appears to me abs is working correctly and just a symptom of rear lockup. I ordered new DElco shoe set and will try that, I am unable to check rear pressure but can check front pressure with waekon pad unit. I feel it is a combo valve failure but have found...

FIX posted 7/11/2003

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle