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Hatch fails to restart in110 degree heat.

Discussion in 'General Tech and Maintenance' started by d.b.cooper, Jul 15, 2006.

  1. d.b.cooper

    d.b.cooper Mid-life Crisis Swap

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    Ive got a 92 EG. B18C1. Car Starts, runs fine, no codes. Occaisionally (4 times so far) it has failed to start, cranks, feels right just doesnt fire, as if no fuel or no spark.

    Each time it started fine the first time.

    Each time it was middle of the hot afternoon when the street or driveway temp is probably over 130.

    Each time I started it drove it a short distance, like just to the curb, while juggling cars in the driveway Or left on an errand and came back quickly. Then I turned off car.

    Within a few minutes I tried to restart, and nothing. It acts somewhat like a vaporlocked carburated car. I tried on a hunch spraying down the engine compartment especially fuel lines to cool them, while careful to avoid geting electrical, plugs dist etc wet. No help.

    If I leave it alone and come back in a couple of hours starts right up.

    Ideas? I'm wondering if fuel pump is getting weak? Fuel filter restriction some how blocked more with pressure from heat?
     
  2. lil_red_rex

    lil_red_rex i do body work!

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    because it is so hot...most likely your main relay is going out....if i was u i would try and replace the main relay....it is located above the hood latch popper inside the car....its tucked under the dash near the lever....replace it and it should start fine everytime....usually high heat causes the sauder in the relay to swell and then when it cools down they crack and lose connection...just replace it and ur good;)
     
  3. phyregod

    phyregod !!YTINASNI

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    :werd:

    Swap out your main relay and smile at you're fixed car.

    If you are mechanically inclined and can solder, you can just re-solder the stock unit.
     
  4. HackaX0rus

    HackaX0rus Landis HO!!!

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    Before replacing the MR have a freind flick it with his finger while you turn the key to trip the relay.
     
  5. d.b.cooper

    d.b.cooper Mid-life Crisis Swap

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    thanks. does the main relay send power to the fuel pump, the ECU, both or neither?

    new OEM Honda one? or does it matter?
     
  6. lil_red_rex

    lil_red_rex i do body work!

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    it sends power to the fuel pump.....get a nice oem honda one....its gunna be around 40-50 bucks but well worth it...check ebay if ur in no rush;)
     
  7. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    werd to MR...ive had to replace them in 2 hondas this summer....i coulda soldered new, but im lazy and i didnt like either person.

    monday was the only day it was below 100 on the way home from work.
     
  8. krut042303

    krut042303 Junior Member

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    What I don't get is why it only happens on a warm engine if its the MR. I have the same problem and I'm sure it's the MR...just wierd that it's ALWAYS on a warm engine.
     
  9. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    id say its more likely its the main relay now. The fuel pump doesnt need a LOT of power, so for some reason the relay will work until you turn off the engine. The second you try to start it again, itll just crank and crank, but no start.

    The heat from the engine easily penetrates the cabin and causes the solder to open up.
     
  10. HackaX0rus

    HackaX0rus Landis HO!!!

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    From what i have noticed of the main relays I have to swap out is the ones manufactured in mexico fail alot more than the japanise ones.
     
  11. pissedoffsol

    pissedoffsol RETIRED

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    really? japanesse products are higher quality than mexican? No............

    lol


    but yeah, this has main relay written all over it.
     
  12. hondarin

    hondarin Please enter a value using 50 characters or fewer. VIP

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    i don't mean to thread jack, but could a main relay cause the car to die and then not be able to start again?
     
  13. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    yes, its possible, but it usually just doesnt start once you turn off the engine. If you dont here the fuel pump kick on when you turn the key to on (not start) then thats usually a sign.
     
  14. d.b.cooper

    d.b.cooper Mid-life Crisis Swap

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    Thanks all.

    I am constantly amazed how easilly you guys troubleshoot. I always search and read a lot first, and I still feel like my symptoms are too vague and arent nearly enough information for anyone to have any idea. but no, Bam, you guys nailed it immediately. I would have fumbled around forever before I even thought of the relay.

    I always think of the worst most obscure problem first. Its an ADD thing.


    Definately is it. I can hear the fuel pump not turn on. havent gotten around to changing it out but I tried the flick it with the finger method suggested and darned if it didnt work!

    AMazing..

    Thanks again.
     
  15. VTECin5th

    VTECin5th Administrator

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    I didn't know we had another phoenix guy :D
     
  16. d.b.cooper

    d.b.cooper Mid-life Crisis Swap

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    Phoenix area..

    Technichally, Mesa, but I drive a lot, most of my work lately seems to be West Phoenix.

    That Champion White 92 EG you couldn't quite catch in traffic was likely me...j/k!
     
  17. sleepercivic

    sleepercivic Senior Member

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    OP : go to radio shack or some place similar and have the relay re soldered, you can save $60, the relay most likely has dry sockets. I was expierencing this with my B16a, had it resolderd and it hasn't happened since.

    who ever said car would die and not restart, to me this sounds like a coil going bad

    gl to all
     
  18. hondarin

    hondarin Please enter a value using 50 characters or fewer. VIP

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    yea, we ended up replacing the distributor. main relay was fine.
     
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