 Does fuel pump (injection) cut off if clogged?, YES i searched and read all 20 pages |
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| jsayre914 |
  Nov 15 2009, 11:56 AM
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Speed Up !!!  Group: Members Posts: 3,188 Joined: 10-February 08 From: Timonium MD 21093 Member No.: 8,696 Region Association: MidAtlantic Region  |
On a bosh fuel pump (3 tit) does it cut out if it cannot get fuel?? I realize if it is intermittant it is probably a loose connection, loose or bad relay, loose pin on board, or dirty fuse on board, etc.
i am at work, and i am not so sure i will make it home tonight, i have a few tools, but no electrical stuff with me. i was wondering .... what would the pump do with good power and a clogged line?? i made it half way to work and the pump cut out 3 times within 1 min, then dead. i pulled over checked the pump and all connections tight. i tried to start it 4-5 times, heard the pump run for 1 sec then dead. crawled under and shook the filtre and banged on the pump. it started but would not idle. i then loosend the clamp holding the pump and turned it upside down. car started and kept strong at high idle but started to choke below 3500 rpm. I risked the drive into work, and made it idling between 3500 and 4500, it would start to cut out and i would downshift jump the rpm and it was ok again. welcome to my life |
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| r_towle |
Nov 17 2009, 07:23 PM
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Custom Member Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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Here is what I would do.
remove the power lead from the positive side of the coil. Attach a 12 vdc lightbulb, or a test light to the end of that line, and then ground out the other side. When you turn the key to run, the light will light up. Now, once you get that working, you can leave the key on and you wont ruin the coil. Now, I would shake, pull and wiggle the wiring harness in the engine bay that goes from that lead to the relay board...keep at it. If the light stays lit, back up...its the relay board...tap it... If that is ok, wiggle the wiring harness that goes from the relay board into the front of the car..its right at the bottom of the firewall...wiggle it. From there, the next place you can reach it is up under the dash where it comes out of the middle tunnel..wiggle it. All the way back to the key. From there, it comes back from the key to the battery. Remove, clean and check the positive leads on the battery...one might be broken or loose. Rich |
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Posts in this topic
jsayre914 Does fuel pump (injection) cut off if clogged? Nov 15 2009, 11:56 AM
jsayre914 without tools and time i cannot trouble shoot so m... Nov 15 2009, 12:56 PM underthetire ok, not sure I can help but...
If it won't idl... Nov 15 2009, 01:10 PM
jsayre914
ok, not sure I can help but...
yes you can, thank... Nov 15 2009, 03:00 PM jsayre914 Hey,
does anybody have a fuel filtre to drop off ... Nov 15 2009, 03:06 PM underthetire Ok, L-jet makes more sense. I think those have a l... Nov 15 2009, 04:22 PM Cap'n Krusty Clogged filters are rare on our cars. They will N... Nov 15 2009, 04:24 PM jsayre914
Clogged filters are rare on our cars. They will ... Nov 15 2009, 05:14 PM underthetire i have the idle screw all the way in and i can idl... Nov 15 2009, 05:54 PM jsayre914
i have the idle screw all the way in and i can id... Nov 15 2009, 05:58 PM r_towle
i have the idle screw all the way in and i can i... Nov 15 2009, 06:11 PM jsayre914
[quote name='jsayre914' post='1239056' date='Nov ... Nov 15 2009, 06:20 PM r_towle
[quote name='jsayre914' post='1239056' date='Nov... Nov 15 2009, 06:25 PM jsayre914
Ljet pump test.
Pull large rubber hose off the ... Nov 16 2009, 10:32 AM ericread I recenty had some significant fuel pump issues. ... Nov 15 2009, 06:21 PM Vacca Rabite You home yet?
Zach Nov 15 2009, 08:20 PM underthetire Could be the sock in the tank. Have you changed it... Nov 16 2009, 10:35 AM r_towle Its either the fuel pump, or the fuel pressure reg... Nov 16 2009, 06:07 PM jsayre914
Its either the fuel pump, or the fuel pressure re... Nov 16 2009, 06:17 PM underthetire Not if what Rich says, rising rate regulator. I do... Nov 16 2009, 06:20 PM jsayre914
Not if what Rich says, rising rate regulator. I d... Nov 16 2009, 06:35 PM r_towle The regulator is pretty simple...this happened to ... Nov 16 2009, 06:56 PM r_towle Start reading here.
http://manuals.type4.org/ljet... Nov 16 2009, 07:00 PM jsayre914 i am reading...thanks Rich.
test one. check vo... Nov 17 2009, 08:22 AM Millerwelds I recently went through some fuel pump issues on m... Nov 17 2009, 08:36 AM jsayre914 i just tried the jumper test. + to coil and - to b... Nov 17 2009, 10:53 AM r_towle
i just tried the jumper test. + to coil and - to ... Nov 17 2009, 07:13 PM ericread Since you have now determined the pump is good, it... Nov 17 2009, 11:37 AM jsayre914 i got frusterated last night, looking for the prob... Nov 18 2009, 11:48 AM Vacca Rabite If it ran great, maybe you fixed the problem?
Zac... Nov 18 2009, 12:26 PM jsayre914
If it ran great, maybe you fixed the problem?
Za... Nov 18 2009, 04:00 PM ericread :wacko: Nov 18 2009, 12:29 PM r_towle I am confused.
If this is a fuel pump issue or an ... Nov 18 2009, 04:43 PM jsayre914
I am confused.
If this is a fuel pump issue or an... Nov 18 2009, 05:50 PM underthetire ooooh, i can answer this one, lost my pump on the ... Nov 18 2009, 05:53 PM jsayre914
ooooh, i can answer this one, lost my pump on the... Nov 18 2009, 05:58 PM underthetire
ooooh, i can answer this one, lost my pump on th... Nov 18 2009, 06:02 PM r_towle So, are you home again?
Do you have a multi meter?... Nov 18 2009, 06:40 PM |
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