 New issue: Fuel pump prime on key on 3sec then air bubbles in Tank, Hard start/no start ran OK once started |
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| rfinegan |
 Apr 30 2025, 05:15 AM
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#1
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Senior Member  Group: Members Posts: 1,070 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region 
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I drove my Djet 2.0 75 to the dr 10 -15 away. Came out 30 in later and car would not start.
Cranks Fuel pump prime Clear flood (crack peddle to the floor) Just hitting occasion on a cylinder or so Battery almost dead trying and I got it to start and get home(no tow bill) Ran OK, but did not let it idle not wanting it to stall at home I turn it off and would not start again Symptom: I can hear the fuel pump prime for 3 secs followed by a rush or air bubbles in the Tank out of the blue, the fuel pump prime seems to prime normal and no bubbles and start and shuts off as normal Sound like vapor lock? But I have never had this issue and only mild temp about 75-78 Gut makes me think fuel pressure regulator or fuel pump? NO check valve to hold pressure right? I need to get a gauge on it and make it strand me again.... May not be related: To get it started before the battery went dead I swamped the advance curve on the 123 to the one that came with the distributor ( more max advance) At home to hear the bubbles better I pulled the fuel cap to see the bubbles and here them better In a Forest Gump voice: And just like that, it got better! |
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Replies(1 - 4)
| emerygt350 |
Apr 30 2025, 06:13 AM
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#2
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Advanced Member Group: Members Posts: 2,865 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Vacuum built up in the tank? Evap plugged? Not sure about the symptoms of that.
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| rfinegan |
Apr 30 2025, 07:18 AM
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#3
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Senior Member Group: Members Posts: 1,070 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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QUOTE(emerygt350 @ Apr 30 2025, 08:13 AM)  Vacuum built up in the tank? Evap plugged? Not sure about the symptoms of that. Yeah, I was thinking plugged vent too. With the cap off NO plugged system? EZ to test with and without cap. IF it acts up again with the cap on and fixed with the cap off. We have a place to start...I just do not want that to happen on the side of the road or in a parking lot away from home. A fuel pressure gage will help with the test too 1) Pull the engine lid 2) Add a fuel pressure gauge 3) Tape gauge to back window 4) Test drive with tools, (Starting fluid, vise grips, spark tester etc) AND a Charge Cell phone |
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| rfinegan |
Apr 30 2025, 10:16 AM
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#4
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Senior Member Group: Members Posts: 1,070 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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Wow that is a small hole for the expansion chamber tube to filler neck....but open and no obstructions all the way to the charcoal can or no leaks
Oh BTB: when it was acting up at home and the loudest bubbles, when I removed the filler cap no woosh noise for pressure of vacuum Looking for leaks and kinks next... |
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| ClayPerrine |
Apr 30 2025, 05:35 PM
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#5
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Life's been good to me so far..... Group: Admin Posts: 16,294 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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Sounds like either a kinked hose under the tank or a clogged fuel filter.
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