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Liftgate
01-14-2013, 15:38
Does anyone know what is normal vacuum for a gear driven pump on a 6.2? I checked mine and it read 6 in. Hg. at idle and revving, no difference. ?:confused:
mrwilecoyote
01-14-2013, 16:36
I think it's around 20 but I can't swear to it. I can say 6 definitely sounds way low.
DmaxMaverick
01-14-2013, 17:00
It should be 20-26" at any RPM at the inlet port. 6" is a bad pump, or you have leak(s) between the pump and your test point.
Liftgate
01-15-2013, 10:23
It should be 20-26" at any RPM at the inlet port. 6" is a bad pump, or you have leak(s) between the pump and your test point.
I have one with a speed sensor on top. Can I just replace the "pod" or do I have to get the whole thing? Is there any difference with a federal emissions "pod"? I don't see any california emissions "pods". It looks like you have to buy the whole deal for a california emissions one. Thanks for your help.
DmaxMaverick
01-15-2013, 10:36
The pod isn't serviceable. It's replaced as a unit.
Liftgate
01-17-2013, 16:16
The pod isn't serviceable. It's replaced as a unit.
I'll order a new one and replace it. Thanks for all your help!;)
Liftgate
01-29-2013, 09:44
I got a rebuilt vacuum pump "pod" and installed. Now I have vacuum around 22 in.hg. Do I need a check valve on the hoses? This one didn't have any check valve. Also the pod I ordered, delphi #1696 was supposed to be for a pump with a speed sensor. The inlet pipe interfered with the speed sensor so I had to remove my old one and install it. Not too hard. Any comments?