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    Thread: 84 gti intank transfer fuel pump?

    1. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-20-2011 04:43 PM #1
      does a 84 gti have a internal "transfer fuel pump"? along with the external or does it have just an external?

      thanks in advance
      89 e30 327iT & 89 s10 Bagged

    2. 01-20-2011 05:27 PM #2
      Quote Originally Posted by Dropped325i View Post
      does a 84 gti have a internal "transfer fuel pump"? along with the external or does it have just an external?

      thanks in advance
      Only external.

    3. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-20-2011 05:29 PM #3
      Quote Originally Posted by deathhare. View Post
      Only external.
      ok, another question for ya, turning the key forward not cranking i should hear the fuel pump for a couple seconds all the time i put the key forward? or only if it looses pressure it will run for a couple seconds?
      89 e30 327iT & 89 s10 Bagged

    4. 01-20-2011 05:30 PM #4
      Quote Originally Posted by Dropped325i View Post
      ok, another question for ya, turning the key forward not cranking i should hear the fuel pump for a couple seconds all the time i put the key forward? or only if it looses pressure it will run for a couple seconds?
      You should hear it for a second every time you turn to the on position.

    5. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-20-2011 05:32 PM #5
      Quote Originally Posted by deathhare. View Post
      You should hear it for a second every time you turn to the on position.
      i don't and i checked it for power today and nothing, so i ordered a new pump and relay, i checked the 20amp fuse and its fine. I need both anyway considering the age and duino its history but i stopped hearing my fp recently but my cars running? must be running barely and reason my cars running like ****. today i checked with the key on a couple times on and off and didn't get a voltage reading nor herd it (buzz), i should of tried to start it and see. I'll have my relay from GAP tomorrow and recheck for voltage and hope that takes care of it if not a got a cheap ebay fp on the way also.

      thanks
      89 e30 327iT & 89 s10 Bagged

    6. Member grizzlyone's Avatar
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      01-20-2011 07:33 PM #6
      Put your hand on the relay when you turn on the key, you should feel it click over. If it doesnt then 99% chance the relay is dead. Could be ignition switch, but doubtful. You can also jumper the relay to put power to the pump directly to test if the pump is bad or not.

    7. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-21-2011 08:25 PM #7
      Quote Originally Posted by grizzlyone View Post
      Put your hand on the relay when you turn on the key, you should feel it click over. If it doesnt then 99% chance the relay is dead. Could be ignition switch, but doubtful. You can also jumper the relay to put power to the pump directly to test if the pump is bad or not.
      well i started my car today, which i have been able to which is weird considering i don't hear it pre-run before starting. and i put my hand on the fuel pump, i feel it working. i wonder if its not working 100% now. also I got in my relay from GAP and looked in my bentley and haynes and the bentley told me incorrect i believe. so i dropped the fuse panel and checked behind to see if there were any cut wires and it looks fine. i took some pics, if anyone can help me locate the fp relay? I know i could pull each one until the fp doesnt work etc, but its cold lol..

      give me a min for the pics. sorry its 3 pics crappy cell phone and mag light
      Last edited by Dropped325i; 01-21-2011 at 08:31 PM.
      89 e30 327iT & 89 s10 Bagged

    8. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-21-2011 08:29 PM #8
      pics.



      89 e30 327iT & 89 s10 Bagged

    9. Member wantacad's Avatar
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      01-21-2011 08:39 PM #9
      It's on the top row, I think it's the furthert one on the left.

      If you have the new one from GAP just pull it and look at the terminals to compare. It's the only relay in your system that will look like it.
      Quote Originally Posted by WackyWabbitRacer View Post
      You're new here but don't be a DORK.....
      Cheers, WWR.
      Quote Originally Posted by rte7x9 View Post
      Don't swap if you can't weld or fabricate. It's not a trivial task just to bolt everything up. There's a lot of nut-scratching involved. Take your time and do it right.

    10. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-21-2011 08:42 PM #10
      Quote Originally Posted by wantacad View Post
      It's on the top row, I think it's the furthert one on the left.

      If you have the new one from GAP just pull it and look at the terminals to compare. It's the only relay in your system that will look like it.
      i thought the same but it looks like there are a few. doesnt look to be anything on the right side because i can read on the plastic all the names minus what the aux relay is for. being 4 degrees outside and not having to much patience doesnt help, thats why i'm on here...
      89 e30 327iT & 89 s10 Bagged

    11. Member wantacad's Avatar
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      01-21-2011 11:10 PM #11
      Quote Originally Posted by wantacad View Post
      It's on the top row, I think it's the furthert one on the left.

      If you have the new one from GAP just pull it and look at the terminals to compare. It's the only relay in your system that will look like it.
      read again

      Quote Originally Posted by Dropped325i View Post
      i thought the same but it looks like there are a few. doesnt look to be anything on the right side because i can read on the plastic all the names minus what the aux relay is for. being 4 degrees outside and not having to much patience doesnt help, thats why i'm on here...
      Quote Originally Posted by WackyWabbitRacer View Post
      You're new here but don't be a DORK.....
      Cheers, WWR.
      Quote Originally Posted by rte7x9 View Post
      Don't swap if you can't weld or fabricate. It's not a trivial task just to bolt everything up. There's a lot of nut-scratching involved. Take your time and do it right.

    12. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-22-2011 11:37 AM #12
      Quote Originally Posted by wantacad View Post
      read again


      the size of the relay, i have more than one it looks, i was just describing on the plastic assembly all the right hand side is labeled and none is fp. so i guess i'll go right now and try. its daylight.. brb
      89 e30 327iT & 89 s10 Bagged

    13. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-22-2011 12:14 PM #13
      Quote Originally Posted by Dropped325i View Post
      the size of the relay, i have more than one it looks, i was just describing on the plastic assembly all the right hand side is labeled and none is fp. so i guess i'll go right now and try. its daylight.. brb
      you guys were right it is the top left. i looked, its the same kind also, K A E and says fuel pump on it lol. I do now hear the fuel pump all the time when i turn the key. I need to test drive it, but i have to put the fuel pump back in place (currently hanging) before going for a ride to see if its better of the fp is still not up to par or i have another issue (lack of power and feeling neutered).

      i just replaced the spark plugs, cap and rotor, now fp relay. had the timing done and timing belt re tensioned and ignition reset from a mechanic. i have a feeling there is still something not right.. i still have the fp in the mail from cali to see if that helps, but what are the odds that the fp is working but not 100% ?

      and fyi, i took apart the old relay and it seems to be newer, couldn't see any physical issues as i thought i would have.
      Last edited by Dropped325i; 01-22-2011 at 12:16 PM.
      89 e30 327iT & 89 s10 Bagged

    14. Member dubdaze68's Avatar
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      01-22-2011 05:15 PM #14
      I thought SOME '84 GTI's had a lift pump?

    15. Member Dropped325i's Avatar
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      89 327it / 01 neon gas saver
      01-22-2011 06:01 PM #15
      alldata and GAP said one.. but i thought they were both wrong. so i guess there right?

      i just found the fuel tank hose to the pump looked a lil kicked, changed that, shot my eye with gas, wasnt fun. and i just got the fp in the mail and didnt install it. i took it for a ride..seemed the same. but she starts. also twice i didnt hear the pump prime. so maybe the pump is on its way out. still gota swap out the new pump. starting to think itsa a clutch but i dont see how when its like 2 months old.
      89 e30 327iT & 89 s10 Bagged

    16. Member dubdaze68's Avatar
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      '81 Sportruck
      01-22-2011 11:41 PM #16
      Little hint. Test the voltage at the pump wiring. Sometimes the wiring corrodes or breaks off in the sheath, and you'll never know it.

    17. Member tochtli83's Avatar
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      1983 Rabbit 16V GTI, 1989 Jetta GLI 16V, 1982 Quantum 1.6TD Wagon, 2001 Jetta TDI, 1982 Caddy Diesel
      01-23-2011 01:21 PM #17
      IIRC, the USA Rabbits did NOT prime the pump when set to the on position. The pump will only crank when the starter is actuated, or the car is running.

      All 1985-up cars did the fuel pump primer through the relay. So, lets forget about that possibliity as a cause of this problem.

      Let's ask a more-relevant question: when was the last time you replaced your fuel filter? Water turns to ice when it gets cold outside, the last time I checked. Your filter could be freezing with water that's now-commonplace with this **** Ethanol gas we're forced to use. I'd start there, and then do the fuel pressure tests as outlined in the Bentley manual. If you don't own a Bentley manual, and you plan on keeping this car for the foreseeable future, then spend $200 on the following:

      1) Bentley Manual ($20-50 used)
      2) Fuel pressure tester (KD tools makes a nice one for about $80-100)
      3) Multi-tester with dwell function (about $40-60 at Radio Shack, or Autozone sells a nice one in their electronic tools section).

    18. 01-23-2011 02:04 PM #18
      both my 83 and 84 NA gti's primed upon first turn to ignition and then ran constant with the starter

    19. 01-23-2011 07:01 PM #19
      Quote Originally Posted by tochtli83 View Post
      IIRC, the USA Rabbits did NOT prime the pump when set to the on position.
      My 83 gti did as well as the 83 caddy.

    20. 01-23-2011 07:06 PM #20
      All or the Rabbits I've had prime when the key goes to run.

    21. Member tochtli83's Avatar
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      1983 Rabbit 16V GTI, 1989 Jetta GLI 16V, 1982 Quantum 1.6TD Wagon, 2001 Jetta TDI, 1982 Caddy Diesel
      01-23-2011 07:35 PM #21
      Quote Originally Posted by 04 Rabbit Man View Post
      All or the Rabbits I've had prime when the key goes to run.

      Well, I musta forgot. My last two Rabbit gassers were both 81 and 82 Caddys. Neither primed the pump, and it was an annoying feature to not have it (especially when they'd drain pressure back to the tank overnight). I'm guessing is a CIS-O2 feature, and not a CIS-Basic feature. 1982 was the last year for most CIS-Basic. 1983 Pickups had gone to the CIS-O2. So, I stand corrected.

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      1987 Scirocco DLX
      05-03-2011 01:42 PM #22
      Very easy check for tank pump: expose the fuel sender by removing the round plate in seat base and if THREE wires in the sender plug, then have a pump in there. Also supposed to be a larger gas tank. VW changed over in mid year 1984.

      Not in the 1980-84 Bentley manual including schematics.
      Last edited by MacGruber; 05-03-2011 at 01:46 PM.

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