Wagoneer L6-258 4.2L VIN C 2-bbl (1982)
EGR Backpressure Transducer: Service and Repair
1. Disconnect vacuum lines from exhaust back-pressure sensor and EGR valve.
2. Remove EGR attaching nuts and the EGR valve and exhaust back-pressure assembly.
3. Clean mating surfaces and intake manifold and back-pressure sensor ports.
4. Reverse procedure to install. Torque attaching nuts to 13 ft. lbs.
