Fuel Pump
02-23-02, 08:01 PM
#1
#!/sup_mod/üb3rg33k
Thread Starter
Join Date: Sep 2001
Location: Kansas City
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
Fuel Pump
I'm having some problems with my fuel pump on my '85 GSL-SE. Are the fuel pumps suppose to turn on when the key is in the "On" position?
I got a new fuel pump and it's not getting any power. No power no fuel to the engine. I hot wired the pump straight to the battery and it worked fine. So, I know the pump isn't bad. Are there any fuses, relays or etc... that I could check to figure out why the pump isn't getting any power with the original wiring?
I got a new fuel pump and it's not getting any power. No power no fuel to the engine. I hot wired the pump straight to the battery and it worked fine. So, I know the pump isn't bad. Are there any fuses, relays or etc... that I could check to figure out why the pump isn't getting any power with the original wiring?
02-23-02, 08:07 PM
#3
#!/sup_mod/üb3rg33k
Thread Starter
Join Date: Sep 2001
Location: Kansas City
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by peejay
are you checking it with the engine running? the pump only works when cranking, or when the engine is running.
are you checking it with the engine running? the pump only works when cranking, or when the engine is running.
That would make me soooooo happy if that is true! Engine will crank over but not without fuel going to it. Should I just try cranking it a couple of times to get the car started? *crosses fingers*
02-23-02, 09:08 PM
#4
Old [Sch|F]ool
Sure, go for it!
One neat thing to have for situations like this is a test buzzer. Just like a test light, but you don't need to be looking at it! You can make 'em fairly cheap with alligator clips, wire, and piezoelectric buzzers sourced from Radio Shack.
One neat thing to have for situations like this is a test buzzer. Just like a test light, but you don't need to be looking at it! You can make 'em fairly cheap with alligator clips, wire, and piezoelectric buzzers sourced from Radio Shack.
02-24-02, 12:48 PM
#5
Senior Member
Join Date: Apr 2001
Location: indiana
Posts: 406
Likes: 0
Received 0 Likes
on
0 Posts
on all 3 of my 7's, the fuel pump would come on with the key in the full ON position. it didn't matter whether the car was running or not. i know there's a relay somewhere for the fuel pump, roundabouts the fuse box, but i just bypassed it and it's working great now.
79- stock pump? beats me... never messed with it
84 gslse- dual facet pumps from RB, already installed when i bought it
82 frankensteiner- holley red pump, self installed, screw the relay i wanna drive now!
79- stock pump? beats me... never messed with it
84 gslse- dual facet pumps from RB, already installed when i bought it
82 frankensteiner- holley red pump, self installed, screw the relay i wanna drive now!
02-24-02, 01:05 PM
#6
Full Member
Join Date: Apr 2001
Location: Christchurch, New Zealand
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Hi.
As far as I can tell, the fuel pump works when ever the key is ON. Mine certainly makes a loud ticking from that point onwards. I have a 1978 stock pump.
My fuel pump gave up last Wednesday. I pulled out my back seat to get at the wiring. There is a connection there somewhere (around you storage bins?). I pulled the socket apart and tested it with a multi-tester. They are quite cheap and well worth having.
When I pluged the tester into the wire that leads to the dash/battery and turned on the key, it registered 12 volts. This means that power was getting through already. If it wasn't I would have looked at the fuses, etc.
I then pulled the fuel pump and held wires from it to the battery (hotwired it). It worked fine, so I knew that the problem was somewhere in the pump's wiring. I cleaned the socket's contacts with sandpaper and a file, and it turned out that one of the contacts was lose. This popped back into place and the car is running fine again.
Hope this helps.
Bye,
ScruffyChimp
As far as I can tell, the fuel pump works when ever the key is ON. Mine certainly makes a loud ticking from that point onwards. I have a 1978 stock pump.
My fuel pump gave up last Wednesday. I pulled out my back seat to get at the wiring. There is a connection there somewhere (around you storage bins?). I pulled the socket apart and tested it with a multi-tester. They are quite cheap and well worth having.
When I pluged the tester into the wire that leads to the dash/battery and turned on the key, it registered 12 volts. This means that power was getting through already. If it wasn't I would have looked at the fuses, etc.
I then pulled the fuel pump and held wires from it to the battery (hotwired it). It worked fine, so I knew that the problem was somewhere in the pump's wiring. I cleaned the socket's contacts with sandpaper and a file, and it turned out that one of the contacts was lose. This popped back into place and the car is running fine again.
Hope this helps.
Bye,
ScruffyChimp
Trending Topics
02-25-02, 01:05 AM
#8
#!/sup_mod/üb3rg33k
Thread Starter
Join Date: Sep 2001
Location: Kansas City
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by yayarx7
GSL-SE's have a different fuel pump setup as they are fuel injected.
GSL-SE's have a different fuel pump setup as they are fuel injected.
02-25-02, 01:08 AM
#9
Super Newbie
Check the flapper door in the AFM. It is supposed to complete the fuel pump circuit under cranking, and while its running. Thats why the -SE pump doesn't come on in the ON position.
02-25-02, 08:33 PM
#11
#!/sup_mod/üb3rg33k
Thread Starter
Join Date: Sep 2001
Location: Kansas City
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
well it was a bit cold to install the coils today. it was 55 degrees yesterday and now it snowing. wtf!?!
anyways, i'll try to check the afm door.
anyways, i'll try to check the afm door.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
ChrisRX8PR
Single Turbo RX-7's
21
10-18-15 04:01 PM
