AIR31 - Check Reservoir to Hold Vacuum

^ Key OFF.

^ Apply 51-67 kPa (15-20 in Hg) vacuum to the reservoir port and hold.

^ Is vacuum loss greater than 1.7 kPa (.5 in Hg) after 60 seconds?

YES -- Replace vacuum reservoir. Verify drive concern.

NO -- Return to diagnosis index page to address the next possible causal component. If completed, go to diagnosis by symptom. Diagnosis By Symptom