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Old 06-17-2017   #1
Jim Stanley
 
Join Date: Apr 2017
Location: Missouri
Posts: 46
Default Vacuum Pump

With the key in the On position the vacuum pump keeps running. Occasionally it stops for a second and then keeps running. Is it supposed to stop? Does this mean I have a leak?

Thanks,
Jim
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Old 06-17-2017   #2
secondchance
 
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Default Re: Vacuum Pump

Quote:
Originally Posted by Jim Stanley View Post
With the key in the On position the vacuum pump keeps running. Occasionally it stops for a second and then keeps running. Is it supposed to stop? Does this mean I have a leak?

Thanks,
Jim
Yes. You have a leak within secondary vacuum system most likely under the plenum.
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Old 06-17-2017   #3
Jim Stanley
 
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Default Re: Vacuum Pump

Thanks for confirming. Can't wait http://zr1.net/forum/images/smilies/icon_neutral.gif
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Old 06-17-2017   #4
G8nightman
 
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Default Re: Vacuum Pump

Make sure you don't burn out the pump I would disconnect it till you fix the leak. I seen people asking as much as 400 for the pump


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Old 06-17-2017   #5
Paul Workman
 
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Default Re: Vacuum Pump

Quote:
Originally Posted by G8nightman View Post
Make sure you don't burn out the pump I would disconnect it till you fix the leak. I seen people asking as much as 400 for the pump


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$400? Wow. I gave mine away after pulling the secondary SOB's; never looked back!
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90 #1202
"FBI" top end ported & relieved
Cam timing by "Pete the Greek"
Sans secondaries
Chip & dyno tuning by Haibeck Automotive
SW headers, X-pipe, MF muffs

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Old 06-17-2017   #6
PhillipsLT5
 
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Default Re: Vacuum Pump

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Originally Posted by Paul Workman View Post
$400? Wow. I gave mine away after pulling the secondary SOB's; never looked back!
I gave mine away also, at least it was to a friend
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Old 06-18-2017   #7
Z51JEFF
 
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Default Re: Vacuum Pump

The pump can be found new shipped to your door for less than $130,same pump used in a KODIAC KICK,direct bolt on for 91-95,plug is different for 1990. Anybody know the part number for the new solenoid valve?

Last edited by Z51JEFF; 06-18-2017 at 10:03 PM.
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Old 06-19-2017   #8
Paul Workman
 
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Default Re: Vacuum Pump

Check with Jerry Downey @ Jerry's Gaskets.com
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Good carz, good food, good friendz = the best of timez!

90 #1202
"FBI" top end ported & relieved
Cam timing by "Pete the Greek"
Sans secondaries
Chip & dyno tuning by Haibeck Automotive
SW headers, X-pipe, MF muffs

Former Secretary, ZR-1 Net Registry
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Old 06-19-2017   #9
mgbrv8
 
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Default Re: Vacuum Pump

Quote:
Originally Posted by Paul Workman View Post
$400? Wow. I gave mine away after pulling the secondary SOB's; never looked back!

FYI Paul there is a cheaper option

https://www.stockwiseauto.com/a1-car...D=pwf386101g1&

Dave

Last edited by mgbrv8; 06-19-2017 at 02:44 PM.
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Old 06-19-2017   #10
Paul Workman
 
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Default Re: Vacuum Pump

Quote:
Originally Posted by mgbrv8 View Post
FYI Paul there is a cheaper option

https://www.stockwiseauto.com/a1-car...D=pwf386101g1&

Dave
Yes, Thanks, Dave.

I assume you meant "cheaper" than Jerry's part. Otherwise I don't know how ya can get cheaper than eliminating all the secondary port throttles entirely! (is what I meant). Parts that don't exist don't cost much, and the never fail!

Jerry sells a new OEM pump and is listed for ~ $176.00 The one on your link sells for $56.xx and says it is "remanufactured". Choices....
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Good carz, good food, good friendz = the best of timez!

90 #1202
"FBI" top end ported & relieved
Cam timing by "Pete the Greek"
Sans secondaries
Chip & dyno tuning by Haibeck Automotive
SW headers, X-pipe, MF muffs

Former Secretary, ZR-1 Net Registry
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