LN7 L4-098 1.6L VIN 4 2-bbl (1982)
Vacuum Reservoir HVAC: Description and Operation
Fig. 28 Vacuum reservoirs
The vacuum reservoir, Fig. 28, acts as an accumulator and prevents sudden drops or rapid fluctuations in a vacuum signal during acceleration. If
vacuum in the reservoir leaks more than 1/2 inch Hg in 1 minute, the reservoir is defective and must be replaced.