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1993 Buick Skylark GS 3.3L - Location of fuel pump relay

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Old Apr 14, 2022 | 09:59 PM
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j.alan's Avatar
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Default 1993 Buick Skylark GS 3.3L - Location of fuel pump relay

I have not been able to determine the location of the fuel pump relay on this car. The 8th character of the VIN is "N". I have searched under the dash near the fuse box and also on the firewall, but have not located it. The sketches I found online do not seem to show anything that is actually on the car. Any help will be greatly appreciated.
 
Old Apr 15, 2022 | 07:04 PM
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Can we ask why you are suspicious of the fuel pump relay?
Check the front of the passenger side engine compartment to the curbside of the radiator.
The cooling fan and fuel pump relays should be there.

 
Old Apr 17, 2022 | 03:57 PM
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Originally Posted by hanky
Can we ask why you are suspicious of the fuel pump relay? .
Great question. Before I removed the tank and changed the fuel pump motor and filters, I had tried to run the fuel pump with the fuel pump priming connection (the red wire coming out of the wiring harness near the driver side shock tower). When I had applied + battery voltage to this wire, I was getting a spark when I made contact with my jumper wire and the + battery terminal. However, the pump motor was not running, presumably because it was siezed up. At some point I quit getting a spark when I made the connection. I have now replaced the fuel pump motor and it does run for two seconds when I turn the key, but it does not run when I connect battery voltage to the primer wire. I checked all the fuses and they are good. So I suspect I burned out the relay trying to run a siezed fuel pump motor with the fuel pump primer connection.
 
Old Apr 18, 2022 | 12:10 PM
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Originally Posted by hanky
Check the front of the passenger side engine compartment to the curbside of the radiator.
The cooling fan and fuel pump relays should be there.
I checked around all sides of the radiator but do not see any relays. What do you mean by curbside?

A Q&A I found on Fixya said it was in the middle of the firewall (engine compartment side). I took a photo in case that might help.


 
Old Apr 18, 2022 | 12:58 PM
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Also checked under the glove box and it is not there.
 
Old Apr 18, 2022 | 03:43 PM
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I should have said passenger side instead of curbside because if one drives on the left side of the road, there is a curb there too.

Check right behind the passenger side headlamp assy. They are usually hanging there.
 
Old Apr 19, 2022 | 12:00 PM
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Originally Posted by hanky
Check right behind the passenger side headlamp assy. They are usually hanging there.
Thank you for your reply. I checked that area but there are no relays there.
 
Old Apr 25, 2022 | 01:45 PM
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I found it!
There are 5 relays mounted inside a black plastic box that is mounted to the firewall. The fuel pump relay is one of them.


 
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