Does fuel pump (injection) cut off if clogged?, YES i searched and read all 20 pages |
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Does fuel pump (injection) cut off if clogged?, YES i searched and read all 20 pages |
jsayre914 |
Nov 15 2009, 11:56 AM
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#1
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Speed Up !!! Group: Members Posts: 3,199 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 |
r_towle |
Nov 17 2009, 07:23 PM
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#2
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Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
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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