Fuel Pump not running, Possiable causes |
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Fuel Pump not running, Possiable causes |
914coop |
Apr 6 2011, 07:42 PM
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#1
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Member Group: Members Posts: 214 Joined: 5-September 08 From: Minneapolis Member No.: 9,514 Region Association: Northstar Region |
On a 76 2.0 D-jet, FI harness just replaced.
What I have done/checked. * all FI harness connections * Power to coil to make sure I was getting power to engine compartment * disconnected FI harness from relay board and did Sir Andy's carb connection set up * took out the tank a tested the pump by attaching it to anorher battery....Worked So is it the relay(s) or should I also check something else? Thanks Irv |
GeorgeRud |
Apr 6 2011, 09:00 PM
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#2
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
Check the round fuel pump relay in the engine compartment. You can swap it for another round relay to test it.
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luskesq |
Apr 6 2011, 09:48 PM
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#3
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Member Group: Members Posts: 276 Joined: 24-October 10 From: Fresno, CA Member No.: 12,303 Region Association: Central California |
Agree with relay switch or you can remove the fuel pump relay and with a wire, jumper between pin s 30 & 87. Pump should run when jumped and if so, the relay is bad.
keith |
JRust |
Apr 6 2011, 11:00 PM
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#4
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914 Guru Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest |
Is it getting power from the ignition? Does it click or anything when you turn the key? How about the fuse on the relay board?
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Bartlett 914 |
Apr 7 2011, 05:18 AM
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#5
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
It could also be a bad relay board. Happened to me.
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914coop |
Apr 7 2011, 12:38 PM
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#6
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Member Group: Members Posts: 214 Joined: 5-September 08 From: Minneapolis Member No.: 9,514 Region Association: Northstar Region |
Is it getting power from the ignition? Does it click or anything when you turn the key? How about the fuse on the relay board? Ignition has power coil and the Crane ignition all have power. Hear a click when turning the ignition off. Did not check the fuse on the relay board thoroughly, just gave it a quick look and it seemed to be good. I will pull that out and give it a good look. Thanks Irv |
sww914 |
Apr 7 2011, 12:41 PM
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#7
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
A bad ground at the multiple ground point on top of the engine case can do it too.
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SUNAB914 |
Apr 7 2011, 12:53 PM
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#8
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Senior Member Group: Members Posts: 698 Joined: 29-December 08 From: Fredericksburg VA Member No.: 9,880 Region Association: South East States |
Irv, is the ground wire connection at fuel pump clean. Double check. Good luck!
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JeffBowlsby |
Apr 7 2011, 01:05 PM
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#9
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914 Wiring Harnesses Group: Members Posts: 8,533 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Go through this testing procedure to be sure yuor bases are covered Irv.
http://members.rennlist.com/pbanders/FPChecklist_frame.htm |
rick 918-S |
Apr 7 2011, 01:16 PM
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#10
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Hey nice rack! -Celette Group: Members Posts: 20,489 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
Go through this testing procedure to be sure yuor bases are covered Irv. http://members.rennlist.com/pbanders/FPChecklist_frame.htm That's nice! I book marked that one! |
914coop |
Apr 7 2011, 03:28 PM
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#11
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Member Group: Members Posts: 214 Joined: 5-September 08 From: Minneapolis Member No.: 9,514 Region Association: Northstar Region |
Go through this testing procedure to be sure yuor bases are covered Irv. http://members.rennlist.com/pbanders/FPChecklist_frame.htm Thanks Jeff, that is great information. I now know what I am doing tonight..... (IMG:style_emoticons/default/biggrin.gif) Irv |
r_towle |
Apr 7 2011, 04:24 PM
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#12
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Go through this testing procedure to be sure yuor bases are covered Irv. http://members.rennlist.com/pbanders/FPChecklist_frame.htm That's nice! I book marked that one! read the whole site....more than once. Rich |
jasons |
Apr 7 2011, 05:58 PM
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#13
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
When my car sits for more than a few weeks, my pump sticks. I tap it with a wrench and it starts working.
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Chris Pincetich |
Apr 10 2011, 04:26 PM
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#14
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B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
When my car sits for more than a few weeks, my pump sticks. I tap it with a wrench and it starts working. I am trying to get my 914 started after is sat and got real wet and ripe this winter, and have narrowed it down to the fuel pump as one item not making its normal sound. I will to give it a tap and a smack! Paul's site on troubleshooting is not working on my internet. BUMMER! I am using Firefox, maybe try IE?? It looks like a slide show or something and I can't get past the intro page (IMG:style_emoticons/default/sad.gif) |
poorsche914 |
Apr 10 2011, 05:34 PM
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#15
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T4 Supercharged Group: Members Posts: 3,091 Joined: 28-May 09 From: Smoky Mountains Member No.: 10,419 Region Association: South East States |
Paul's site on troubleshooting is not working on my internet. BUMMER! I am using Firefox, maybe try IE?? It looks like a slide show or something and I can't get past the intro page (IMG:style_emoticons/default/sad.gif) Yes, try it in IE. Didn't work for me in FF or Chrome. (IMG:style_emoticons/default/driving.gif) |
914coop |
Apr 14 2011, 08:06 AM
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#16
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Member Group: Members Posts: 214 Joined: 5-September 08 From: Minneapolis Member No.: 9,514 Region Association: Northstar Region |
Thanks guys,
Mine is running again, However I do not know why???? Just went through the problem isolation steps in the flow chart and everything tested out okay and when I got to the end fuel pump ran. (IMG:style_emoticons/default/WTF.gif) Well I am not going to complain, guessing it is a relay ready to go so I have extras with me. Now on to the other spring things to get it ready for the road. Thanks Again Irv. |
rick 918-S |
Apr 14 2011, 09:55 PM
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#17
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Hey nice rack! -Celette Group: Members Posts: 20,489 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
Thanks guys, Mine is running again, However I do not know why???? Just went through the problem isolation steps in the flow chart and everything tested out okay and when I got to the end fuel pump ran. (IMG:style_emoticons/default/WTF.gif) Well I am not going to complain, guessing it is a relay ready to go so I have extras with me. Now on to the other spring things to get it ready for the road. Thanks Again Irv. (IMG:style_emoticons/default/aktion035.gif) WTG! |
jasons |
Apr 14 2011, 11:26 PM
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#18
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
I will to give it a tap and a smack! I jump the relay, then tap the pump and it starts whirring. Sometimes it starts but runs slow and the car stumbles. Same thing, tap the pump and that familiar whirring comes back. BTW mine is relocated to the front so its easy access. |
Bartlett 914 |
Apr 15 2011, 08:30 AM
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#19
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
You are living on borrowed time my friend. Sounds like the brushes are worn.
I will to give it a tap and a smack! I jump the relay, then tap the pump and it starts whirring. Sometimes it starts but runs slow and the car stumbles. Same thing, tap the pump and that familiar whirring comes back. BTW mine is relocated to the front so its easy access. |
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