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For all the readers that are tired of helping people diagnose Hard Cold Starting
I may be the only person with a diesel truck that is having this problem.
I noticed that these forums are loaded with tips on how to fix hard cold starting issues. How about this for a change..... I have to crank my motor for an extended amount of time in order for it to start, but only when it is up to temp.
Cold starts are a breeze, without fail this motor starts when it has been sitting overnight.
It cranks over plenty fast, fuel pressure is good, glow plugs are working. When it is up to operating temp it has to crank for about 4-5 seconds before it will fire. It always starts, but that is just too long to crank.
Let me know what you all suspect.
I had a thought.... When the engine is up to temp my glow plugs don't turn on. Not even for a second (the light comes on but that is it) I checked with a voltmeter. Now I was told that the PCM decides whether or not to turn the plugs on based on engine oil temp. Is there something I can do to get the plugs to turn on even when the engine is warm? Even if it is just for 10 seconds of so? (NO Im not interested in wiring a switch into my dash). Or...... should I not need them to turn on at all? In which case I need you all to help me with some ideas about what could be the problem