Cab/Chassis Models
CAB/CHASSIS MODELS
1. Use a diagnostic scan tool to record any DTC's (Diagnostic Trouble Codes).
2. Disconnect and isolate both negative battery cables at both batteries.
3. Remove four bolts (2) and remove EGR crossover tube cover (1).
4. Remove EGR valve heat shield (2).
5. Disconnect electrical connector (5) at EGR Actuator.
6. Loosen (only) clamp (1). Remove clamp (3) at end of EGR Crossover Tube.
7. Loosen (only) bolt at "P" clamp (5) at center of EGR Crossover Tube.
8. Remove two EGR valve assembly mounting bolts and two nuts (1).
9. Remove EGR valve assembly (2) from intake connector (3) by prying up.
10. Remove crossover tube doughnut gasket (1) and clean EGR valve. Also clean end of EGR tube of any old gasket material.
11. Remove two gaskets on bottom EGR valve (4). Clean bottom of EGR valve and top of its intake connection point of any old gasket material.
12. To prevent contaminants, cover the exposed opening at intake connection.