Grand Cherokee 2WD Limited V8-4.7L (2002)
4. Apply 51 - 67 kPa (15 - 20 inch) vacuum at large end of check valve.
5. Vacuum should hold steady. If gauge on pump indicates vacuum loss the check valve and seal should be replaced.
4. Apply 51 - 67 kPa (15 - 20 inch) vacuum at large end of check valve.
5. Vacuum should hold steady. If gauge on pump indicates vacuum loss the check valve and seal should be replaced.