Recent content by gmtech68

  1. G

    6.9 quit

    My experience with a dead lift pump is it runs after the pump quits until it is turned off and will not restart. Good advice to start with a jerry can and eliminate that. Make sure the pump return line isn't blocked in the pump. Make certain the shut off has power like has been suggested.
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    7.3 ambulance First ever Deisel

    Tire shine can sometimes stop a squeaking belt. That assumes it is in good shape to begin with. We have a customer at work who has a 97 ambulance. I've gained a lot of wiring experience lately.
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    2003 E450 hard start after overnight or longer.

    Project has been back burnered again as the shop gets busier. I can understand the reasoning for what has been suggested though. Appreciate the help.
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    2003 E450 hard start after overnight or longer.

    Checked all glow plugs with a halogen headlight. Bad one is in #8. Will power that headlight through the glow plug harness. Looks like a compression test is next. Injectors all make noise during buzz test, some much louder than others. No codes set during test.
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    2003 E450 hard start after overnight or longer.

    Most engines won't fire without 500 psi injector oil pressure.
  6. G

    2003 E450 hard start after overnight or longer.

    Some cylinders are really loud when they fire. Lots of clatter.
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    2003 E450 hard start after overnight or longer.

    Tried to start this beast this morning. Rainy, 9C,(48F). Checked oil reservoir, normal. Cranked after glow plugs for 10 seconds. Tried to fire but died. Oil reservoir still good. 10 seconds more cranking. Still good. Didn't fire at all. Got scan tool from shop. No codes. ICP reads 2800...
  8. G

    2003 E450 hard start after overnight or longer.

    Body did not change 97 to 03. Cover will come off but it is a fight. Removing the downpipe helps.
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    2003 E450 hard start after overnight or longer.

    Electrically the engine passes all the tests. While running, it runs rough and settles into a constant misfire.
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    2003 E450 hard start after overnight or longer.

    Didn't check. Every time I have checked it it has been an inch or so from the top.
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    2003 E450 hard start after overnight or longer.

    So much for one theory. Oil reservoir is full after a 4 day sit. Cranked for 10 seconds after wait to start light went out. Fired a handful of cylinders then nothing. Gave up and let it sit.
  12. G

    2003 E450 hard start after overnight or longer.

    I'm a little baffled that 150 psi air would blow open the check valves but I guess back pressure isn't really a problem.
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    2003 E450 hard start after overnight or longer.

    I can barely get my head in there as it is. Van body. Also, I hope the computers will pick up on any electrical anomalies.
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    2003 E450 hard start after overnight or longer.

    I can check the reservoir Monday at work. This is a 7.3. I may have used the wrong term.
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    2003 E450 hard start after overnight or longer.

    Reservoir has always had the proper amount of oil when checked. Vehicle was driven about 20 miles after we worked on it to work out air. The longer this thing sits, the harder it is to start. Even after the drive it idles like it is only working on 7 cylinders at most. Customer just wants it...
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