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Daniel_Mc
08-06-2012, 12:15 PM
Hey Guys is this what I need as a replacement? The pump took a dump on me...

The Bay link (http://www.ebay.com/itm/VACCUM-PUMP-KODIAK-TOPKICK-CORVETTE-C4-ZR1-SECONDARY-/330577604727?pt=Motors_Car_Truck_Parts_Accessories&hash=item4cf7f5f077&vxp=mtr)

It looks like the correct item but it got me thinking where it stated
"This pump is used in Kodiak/Topkick trucks for the AC & Heater Controls. On a 91-95 Corvette ZR1 it can be used as a direct replacement for the secondary pump. Can also be used on 1990 ZR-1 with this adapter (GM Part#12102747)"

Thanks,

Daniel
A26B
08-06-2012, 01:10 PM
Yes it is.
tpr60
08-06-2012, 01:12 PM
Yes they work and fit. You can also use Ford diesel vaccume pump, you will have to make up a jumper harness. I use the Ford pump it is available on e-bay for about $$55.
Daniel_Mc
08-06-2012, 01:18 PM
I need to get ta picture but somewhere down the line the pump was wired into the fog lights. Any thought as to why someone would do this?

Daniel
VetteMed
08-06-2012, 01:39 PM
Does the ECM provide +12V, or a switched ground, to turn on the pump? GM often uses switched ground to actuate devices controlled by the ECM or CCM, so perhaps the +12V source is shared by the fogs and the pump?
Daniel_Mc
08-06-2012, 02:02 PM
Does the ECM provide +12V, or a switched ground, to turn on the pump? GM often uses switched ground to actuate devices controlled by the ECM or CCM, so perhaps the +12V source is shared by the fogs and the pump?


I have no idea I haven't gotten into it very far yet. The wire job does not look factory at all.

Daniel
XfireZ51
08-06-2012, 03:45 PM
I have no idea I haven't gotten into it very far yet. The wire job does not look factory at all.

Daniel


Dan,

If you're interested, I have mine (92) that is not in use and would be willing to sell if you are interested.