EGR Valve
- Remove EGR valve. Check valve for sticking, carbon deposits and damage. Clean valve with solvent if necessary. Apply 19.8 in. Hg to valve diaphragm. If valve does not hold vacuum, replace valve.
- Apply specified vacuum to valve diaphragm. See CLOSED IN. HG in EGR VALVE SPECIFICATIONS
table. If valve begins to open below specification, replace valve.
- Apply specified vacuum to valve diaphragm. See OPEN IN. HG in EGR VALVE SPECIFICATIONS
table. If valve is not completely open at or above specification, replace valve.
EGR VALVE SPECIFICATIONS
| Condition |
Vacuum In. Hg |
| Closed |
2.1 |
| Open |
6.8 |