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7500 onan diesel will not try to crank when I push start glow pug lights up

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 158 Answers

SOURCE: 1991 f350 7.3 diesel hard starting in am

you will find that it may be the glow plug timer is faultycausing the glow plugs not getting hot enough

Posted on Mar 18, 2009

  • 15 Answers

SOURCE: 2005 Ford F-250 6.0 PSD No Start

Seems like a low injector control pressure situation. You may see plenty of oil pressure on the gauge but the high pressure oil that opens the injectors is probably passing through a blown STC fitting at the back of the high pressure pump or something of that nature. Check for smoke out the tail pipe, if there's smoke, I could be wrong. If you checked the glow plugs (make sure you have 12 comming and going through the relay, just because it clicks does not mean it's working) than you more than likely have compression, the last thing you need is fuel. To get fuel you need high pressure oil. Your truck should have an ICP sensor on the right valve cover toward the front. You can back probe or make a breakout harness to pins... ok I don't know what two pins but there is only three. Anyway backprobe the sensor and see if you have more than .82V while cranking. If you do not, go to the IPR (injection pressure regulator) which is behind and below the turbo. It is a round solenoid valve sticking out of the high pressure oil pump. This valve will have the connector pointing down and toward the back of the motor in it's "weather protecting" position. You can rotate this valve by hand so the connector is easier to get to but don't force it and break it. You will then need to apply 12V and a ground to this valve. Do not supply the voltage for more than 120 seconds though or you could burn the valve up. with 12V to the valve see if it will start. If it will you may have a power supply problem to the valve. If none of this helps let me know, the rest of the troubleshooting is pretty involved.

Posted on Apr 16, 2009

juggernautxt
  • 145 Answers

SOURCE: 04 f250 diesel cranks but won't start

this is an oil pressure problem, either a sensor is not sensing enough oil pressure, or the high pressure pump is not building enough pressure(possibly leaking or head is leaking). this engine requires 450 psi minimum oil pressure at the injectors to actuate the injectors.

Posted on Apr 30, 2009

  • 832 Answers

SOURCE: 1997 VW JETTA DIESEL GLOW PLUGS

You have to replace the defective glow plug. You can test the glow plug without the test light. Just put a wire on the bolted end of the glow plug and connect this to the battery (+) terminal. Then, put a wire around the body of the glow plug and connect this to the battery (-) negative terminal. Hold at this position for a minute or less. Good glow plug will heat up.

As far as the wiring schematics, I will just describe
it. Your ignition switch is connected to the positive
terminal of the battery by way of the fuse in the fuse
box. From the switch it goes to a timing relay before
going to the glow plug terminals. The glow plug body
is screw mounted to the engine block which serves
as the negative terminal. So, as you switch your
ignition, it heats up the glow plug enough to give a
combustion of the atomized fuel in the cylinder piston
of your car causing it to run.

Posted on Nov 21, 2009

  • 5 Answers

SOURCE: Surf 1KZ-TE Diesel wont fire

check the ecu of your , it may control your plugs,
or check also your spill valve in the injection pump and the timing control valve also in the injection pump.

Posted on Feb 03, 2010

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2007 250D. Why doesn't it start?


Sounds like maybe air in fuel system, bleed fuel system and try.
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Try a battery with more cranking amps cannot hurt. If it is a diesel have an engine heater put on, there are also glow plugs which preheat the combustion chamber on a diesel try to cycle the glow plugs twice before cranking. a battery warmer is also a good idea and thinner oil for the cold season.

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Hi did you check the glow plugs if not get a small piece of wire plus 12 volt bulb connect it to the wire that connected to the glow plugs turn ignition on and see if it lights if not check the fuses plus the cold start relay after that you can fit a piece of wire from the battery to the glow plugs then try to start it. best of luck let me know how you get on

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I have a 1994 f 350 turbo diesel IDI when I try to


Don't just keep cranking if it don't start right away' Give the starter a break. It's getting hot because you just keep cranking on it. Any vehicle diesel has glow plugs to heat the fuel chamber to make it start fast. Be sure you are making use of the glow plugs and it will start fast. If your glow plugs are not working, find out why. Could be just the glow plug relay or connection to it. Or possibly the glow plugs are burned out. Either way, you HAVE to have glow plugs in use on a diesel upon initial start up till it's warmed up. Then will start without them. Most are automated system. You just have to wait till the glow plug light goes out to start cranking on it. I hope this helps you to more understand the workings of a diesel cold start system.

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Why does my 2004 (Land cruiser) PRADO 3000 Turbo Diesel 5sp- have issues starting when it's cold? It turns over and over does nothing, then when it starts, I get a big plume of smoke, then it idles rough...


glow plugs are activated if look on the dash when you turn the ignition just before cranking and you should see a light that stays on for several seconds then goes out and then you should crank the engine ! sometimes when its really cold or the glow plugs are worn try turning the ignition on and off each time light goes out 2 or 3 times to get more heat on the plugs then start ! if this doesnt work then glow plus and system needs checking !

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What does a glow plug light look like?


The 2002 Crown Victoria was not offered in a diesel engine so there is no light for glow plug

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This is a diesel 87. I turn the key over to glow pug position and get no light. I have a block htr and the car starts instantly when I go to ignition. Today same situation but in the ignition position I...


All I can think of is:

1. Are the battery terminals clean? (even then it should probably still turn)
2. Are the connections clean/fallen off on the starter motor.

A quick way to test the battery is to switch on hgih beam and try and start the car. If they go very dim then the battery needs charging or one of the cells is gone.

Hope this helps.

Jan 19, 2011 | 1990 Mercedes-Benz 300 Diesel

1 Answer

This is a diesel 87. I turn the key over to glow pug position and get no light. I have a block htr and the car starts anyway when I go to ignition. Today same situation but in the gnition position I get...


Glow plug light indicates if the system is working as designed too. If you have one or two glow plugs out it will start but idle rough at first.

If the glows do not come on, engine will not start or do so after extended cranking and idle rough if temperature below 50F.

If glow lamp not coming on, the 80 amp fuse may be blown. There is a black box on the left inner fender just back from the headlamp. . Under the cover is a thick fuse held by two Phillip head screws.( IIRC.)

If the engine will not crank, try moving the shifter lever back and forward while you turn ignition to crank. If still no crank, it is often the electrical switch under the ignition switch burnt.

Are the other cluster warning lamps, Oil, Battery, Brake, etc coming on when you turn on the ignition.?

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I have a 2.4L diesel Toyota Hilux. Its was -30 and the battery died. I have since jump started it and it drove fine (when the battery was dead and tried to start it in very cold, my husband thinks it could...


diesel engine have small starter helpers called glow plugs that heat the combustion air so that it can self ignite the diesel fuel
reasons for hard starting are
slow cranking speed---battery not charged enough or not big enough to do the job
injectors squirting and nit atomizing--- take the car to an accredited diesel pump/ injector repair shop for tip replacement and adjustment
the check engine light could be from faulty glow plugs
keep the fuel tank full ,especially in cold climate as there is hot return fuel from the injectors that causes condensation in the tank--water -- and that promotes the growth of a fungus which damages the pump and injectors
use diesel fuel condition on a regular basis to prevent that condition or keep the tank more that 3/4 full to stop condensation occuring

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I have a 1998 1.8 diesel van, once its running its ok, but getting it started can be difficult (esp in cold/damp) Have you got any tips for starting, does this model have a heater plug, if so what symbol...


Sounds like the glow plugs are frazzled. There is one electrical wire going to a plug, then each plug is connected in sequence. The glow plugs are heating devices used to get the fuel up to temperature before ignition.

They are fiddly to replace, but are relatively inexpensive and the most common source of issues with cold-starting diesel engines (first thing to fail).

Some cars had a 'pre-heat' available with glow plugs, where you simply turn the key part-way to 'on' and you would see a glow plug light come on (looks a bit like a picture of a spring). If you see this light on your van, you can turn the key to turn on the glow plugs and they will pre-heat your engine slightly and make starting easier

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