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Truck dies when warm

Discussion in 'Daihatsu Hi jet' started by jody, Feb 10, 2013.

  1. jody

    jody Member

    My 93 hijet jumbo S83P is dying after it is warm. Runs great when cold but has been dying when it gets warm. Let it cool down and it fires right up. Problem is just getting worse. Run lots of seafoam through it but problem still exists. Seems like it is starved for fuel. Can't smell gas so I'm sure it is not flooding out, it just quits like there is a fuel blockage.
    Any ideas??

    Jody
     
  2. rst277

    rst277 Bronze Supporting Member

    Seems like it is running with the choke but after the choke opens up dies. Is the idle set high enough? Another option could be its running with the choke but you're not getting fuel to idle. Check that the idle stop solenoid is functioning. When the key is ON there should be an audible click signaling that the idle stop solenoid is open. There is a connector that could have corroded or the fuse is blown. You could also hot wire it on to check if the truck will idle. I eventually ran a seperate wire that was hot with the key in the ON position straight to the idle stop solenoid and problem solved. Ralph in Winnipeg
     
  3. jody

    jody Member

    Thanks Ralph.

    I'll have a look at that. The truck quits when I am driving it. Not just at idle. Does that make sense??
    Jody in Saskatchewan
     
  4. splauchs

    splauchs Member

    Hey Jody, Wanted to get involved in this discussion since I am having the same problem. You sound like you have narrowed it down to a fuel issue. So do I, but if you haven't ruled out electrical, this is how I did it. Bought a timing light and attached it to any and all hi tension plug wires. In my case I have spark all the way to the point where the engine quits turning. That ruled out (I assume) anything electrical except the plugs. Plugs seemed ok so I am moving on to the fuel. Any idea what the fuel pressure should be going to the carb? After reading this I will follow up on Ralph's suggestion. Wondering if I can measure the pressure immediately before hitting the carb. Rule outfuel pump and filter maybe. Steve
     
  5. jody

    jody Member

    Hi Steve
    Here is where I am at. Once the truck died again I checked the fuel coming out of the tank, Pulled the line off at the fuel filter. No fuel coming out from the tank. When I blow into it to clear the line fuel runs out then stops. My next step is to take off the tank and clean it. My thoughts are this. I think the fuel pump will pull fuel through the line until it gets hot then the pump fails. I also took a fuel tank and put it in the back of the truck, put a line into it to see if the warm fuel pump would pump fuel. No luck. So I will remove and clean tank, put another fuel pump and new fuel filter on and hopefully this will solve my problem. Major storm here so truck will have to wait few days. I'll keep you posted. Anybody else out there have any ideas, I'm all ears. Jody
     
  6. splauchs

    splauchs Member

    Hey Jody, Sounds like you are hot on the trail. Good luck with it and also with the storm. Steve
     
  7. muddy moose

    muddy moose Member

    Time is running good till it gets warm then the idle goes up. When i hit the gas it tries to.die. Just bogs out. If Im in gear and put.my foot to the floor it falls on its face and tries to die. Got good fuel. Filter everything. I can't figure it out. Ill try the timing light trick but Im sure its just some simple thing somewhere.......
     
  8. splauchs

    splauchs Member

    I spent the better part of three months trying to bug out a 4WD issue. In the end I went against the grain from what the manual was telling me and found the problem. Forest for the trees kind of thing. From my experience with that I just learned to not overlook the little signs. I'm kind of with you on your thoughts about it being fuel. Timing light did help me out, but I had different symptoms. It would run fine at idle for 10 minutes then die. But unlike yours mine would never die as long as I was moving at a slightly elevated pace. That's why I thought it was electrical. If it were just a hiccup, then with the higher rpm's it could sort of bounce back. Say an overheated coil or something. I'm kind of eying up the solenoids mounted on the carb. This coming weekend will be my first good weekend to spend time on it. If I find out anything I will let you know for sure. Did find out another thing. they have some smart cats on this forum. Best thing I ever joined. :)
     
  9. muddy moose

    muddy moose Member

    Hahaha yea they do. I discovered at about 3am that my fan is melted. Has been for quite some time by the looks of it. So Im hoping it is just something it does when hot. Trying to cool itself off. Good thing we are hovering around 26 deg f up here in Alaska. Could have been real bad. Good luck to ya. I am interested to know what yours is doing
     
  10. splauchs

    splauchs Member

    Sounds warm for Alaska, but cold for Louisiana. At least you caught it before it is too late. I'll let you know what I find, just hopefully not 3 months from now. :)
     
  11. DYNOBOB

    DYNOBOB Member

    In the USA our trucks may suffer from ethanol blend fuel eating up components in the fuel system. In Japan most fuel doesn't have any ethanol and it's limited by law to 3%. For sure 1990's vehicles were not designed for E10/E15. You might want to check rubber lines or something may have swollen in the fuel pump. Rubber on needle might be sticking to the seat in carb. Good luck!



    .
     
    Last edited: Mar 6, 2013
  12. splauchs

    splauchs Member

    In my case, because of this crazy corn blend, I plan on replacing all of the fuel lines like I did with the vacuum hoses. But never considered the fuel pump. Good point! Wondering if I should forego the mechanical fuel pump in favor of an electric? I have easy access to ethanol free and use it in everything I own. But maybe the previous owner (I've only had it a few months) wasn't as concerned as I am. Would probably be cheaper than a new mechanical.
     
  13. muddy moose

    muddy moose Member

    I just found out my problem today!! On my choke there is a little tiny spring that hooks onto the choke arm. There is a plastic gear that rides on a metal geared arm. As the engine warms up it.melts the way i. The carb. That causes the geared arm to move in turn moving the choke open but the tiny spring keeps a small amount of tension on the choke. It the choke opens too much or not enough it causes serious problems.all that said my plastic gear was stuck to the pin it is on as well as the spring not being on the choke arm. I got it all free and back together. Just havnt got the correct tension on the choke yet. Maybe check that out. I had to remove the cover in the bed of my mini as well as the side of the bed to get my head in the right spot to see it. And had a bright flash light. Hope that helps....as for our weather.....yes we have been enjoying a very odd winter up here. Usually 40 below right now not 40 above. But i don't mind hahaha. I went to Louisiana a year Nd half ago. Just before madi gra and ended up with heat stroke at 3 in the a.m. Hahaha on a better note i did get to catch a 14 foot gater on a little line with a big hook!!! Gater is awesome!!! Love the stuff hahaha
     
  14. splauchs

    splauchs Member

    Good find, congratulations. In my case when I got the truck I did a lot of (attempted) tuning on the carb. Fupabox has a good video on You-Tube that explains that procedure pretty well. In that video he talks about that same mechanism you found. Atthe time at least it seemed to be working okay. The fellow I bought the truck from had the problem too and told me about it before I paid him. But it certainly warrants another look at now. I messed with it when I got back from work yesterday evening. You know all this talk about low speed cutoffs and 25 MPH limiters? I am concentrating on that right now cause it acts just like I turned the key off. The book illustration shows the low speed cutoff solenoid as a one wire element going into the carb at an angle and the 25 mph thing as a 3 wire element that goes in straight up and down. Mine is different I think, but I need to look the book over again today to be sure. 40 below??? Oh my goodness. I been watching all of your reality shows (Yukon Men etc). Beautiful country up there. Sure that gator wasn't on Bourbon street right? Lol.. Where did you take a swamp tour at?
     
  15. muddy moose

    muddy moose Member

    Mine was doing the same thing. Hit the gas and it was like ya shut it off. I reached around the carb and fiddled with the choke with one hand while messing with the gas pedal with the other. That's how i figured it out. Believe me just the smallest tiny little movement made huge differences. Its worth a try. We went to hammond and visited the kleberts gater farm. I know i spelled it wrong. Sorry. Any way they had a couple gaters that escaped and asked if we wanted to help wrangle them back. It was a kick in the pants. T mike is pretty cool. Still talk to him from te to time. That's how i get my gater sausage and gater tail hahaha. He was trippin on me though. I was out there in flip flops shorts and a tank top thrashin threw all sorts of pokie visciousness hahaha. Don't believe everything ya see on those shows. Im surprised they havnt killed anyone yet. I have commercial fished all over Alaska. Done it all. Trust me those shows are going to be the end of someone
     
  16. muddy moose

    muddy moose Member

    Now Im goin to go back put and see if i can guess where to set my choke.........again........hahaha.
     
  17. splauchs

    splauchs Member

    Hey, get on you-Tube and find setting a carb on a diahatsu by Fupabox. Pretty informative and of curse includes visuals.
     
  18. muddy moose

    muddy moose Member

    Right on. I will. Can't be much different than the suzuki
     
  19. splauchs

    splauchs Member

    Wouldn't think. Good luck with it, I'm going home!!!
     
  20. muddy moose

    muddy moose Member

    I already watched this one hahaha. I know for a fact its my choke adjuster. I have to reset it every time i run it
     

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