Removed the Air pump, idle vacuum dropped
07-31-04, 03:05 PM
#1
Removed the Air pump, idle vacuum dropped
I knew it probably would since in the past I could hold my thumb over the inlet to the airpump (that gets filtered air) and it would effect the idle vacuum. Previously my idle vacuum at 760 rpms was -455mmhg. After the air pump removal, at the same rpm, it was -435mmhg. Anyone else experience this drop in idle vacuum when they removed their air pump?
Tim
Tim
07-31-04, 03:16 PM
#2
my old pump broke, so I unplugged it for a few weeks before I got another. My vaccuum went from about -435 mmhg to about -380 mmhg. I put a new pump on and my vacuum went right back up. I wonder if it has something to do with the ACV. I think to "properly" remove the airpump you have to remove the acv as well (someone please correct me if I'm wrong here 
).
).
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