Another NO start - help!
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Another NO start - help!
Truck hasn't been running quite right lately, so about 3 weeks ago I replaced the fuel filter. Has been doing ok since then. This morning, fired up and then died...will not start back up. I have checked for visible leaks, can't find any. Getting pressure from the valve on the fuel filter...when I crack open the injector line - I get nothing, no fuel, nada <-- does this point to the IP? I have scanned as many posts as I could, not really concerned about GP since I don't appear to be getting fuel...plus it's about 95 outside.
Thanks for any help,
Bryan
Thanks for any help,
Bryan
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From: Marietta, OH/Weirton, WV
Sound like you need to check the fuel shutoff solenoid on the IP. Turn your engine to the run position and on the top of your IP pull the wire connector that is closest to you and listen for a click. If you dont hear a click then the solenoid quit working or the wiring from the ignition is shorted or broken wire. If it is working then you should try to give it a squirt of WD40 to get it running. Running little an the WD40 might make it pump the fuel through the system. Let us know how it goes.
Jeremy
Jeremy
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From: Rocky Hill , CT
Try open the fuel line before the injection pump....either before or after the filter. then crank to see if you get fuel through supply pump. If not,then it's either the supply pump , or supply line clogged.
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Well...I'm getting plenty of fuel to the IP, pulled the supply line leading into the pump(lots of diesel). I also checked the return line(?) that leads into the top of the pump..getting fuel there also. Still nothing at the injectors themselves. Where to next? Thanks again for all the help...keep it coming, motorcycle is fine to ride when the weather is nice, otherwise I need my truck LOL.
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From: Marietta, OH/Weirton, WV
Wow man it should have at least fired on the WD40........strange. maybe u didnt give it a big enough squirt heres what to do. Take off your air cleaner the whole thing not just the filter, then take an old but clean rag with no strings and soak it with WD40 i mean saturate it and lay it over the intake screen. then crank it over with half to full throttle and see what she does. If still no go then i suspect more is wrong than just the IP.
Jeremy
Jeremy
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I tried the soaked rag method - nothing. I started poking around in other areas since I'm at a loss. I got under 2ohm resistance on all glow plugs, average about 1.6(I've read anything under 2 is still good - do you guys agree?). I also did a few tests on the GP controller - it appears to be bad or a ground issue, work on that more tmrw. Do you guys think that a bad controller would keep it from firing completely? Still have the fuel issue, just looking in all directions.
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Hey Buzzcutt2,
Your problem sounds alot like air in the fuel system to me. You have started out on the right path by looking for leaks and checking the shutoff solenoid. With all the injection lines loose at the injectors, how many times have you cranked the engine over and for how long each time? When installing an injection pump on the engine it can take 4 or 5 tries to get fuel out of the lines, cranking for 10 seconds each time. Another question is how fast is the engine turning over? Too slow and the injection pump will not put out any fuel. Worst case you may be looking at a rebuilt pump.
Your problem sounds alot like air in the fuel system to me. You have started out on the right path by looking for leaks and checking the shutoff solenoid. With all the injection lines loose at the injectors, how many times have you cranked the engine over and for how long each time? When installing an injection pump on the engine it can take 4 or 5 tries to get fuel out of the lines, cranking for 10 seconds each time. Another question is how fast is the engine turning over? Too slow and the injection pump will not put out any fuel. Worst case you may be looking at a rebuilt pump.
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From: Marietta, OH/Weirton, WV
Thats what i said about it not turning over fast enough thats why i tries to get him to get it staryed with WD40 and hope that gets the fuel through. But he didnt even get a chug out of it i think it might be a more complex problem with the engine. i think he may need a diesel mechanic to look at it.
Jeremy
Jeremy
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Update - finally got it started. Not sure if I have really addressed the problem though. I charged both batteries, cleaned all the terminals. Disconnected the glow plug circuit, opened up one of the injector lines, gave her a shot of starting fluid - it fired up. I shut it down - cleaned all the connectors on the GP controller...it started after sitting overnight, I'm still thinking maybe have air intrusion - just not sure where. I appreciate all the help, hopefully it keeps running. In the meantime - I think I'll add a few clear fuel lines in a few spots. Thanks again.
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From: Rocky Hill , CT
On the return line from the injection pump (fitting on top of ipump housing) should have a piece of black hose running toward the filter bracket,then connects to a metal line running over the valleypan towards rear of engine,where it picks up injector return lines. If you remove this piece of black hose ( it's only about 6 inches long), and replace it with a piece of clear tubing. Start vehicle and look for airbubbles in the tube. Minute bubbles are normal,anything more means an airleak.