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Turned the ignition, glow plugs warm in about 4 sec., cranked for about 4 secs. Turned of the ignition and repeated, still no start. Did it again and busted right off on the third try. Is this normal? Or should I have cranked longer on the first try?
you need to let the glow plugs warm up more. at very least until wait to start light goes out. i go even longer cause I don't like smoke and romps at startup.
I start using mine when the temps get down in the 30's or lower. My truck doesn't like cold but seems to do okay without being plugged in for the week I am elk hunting in around 10* weather. That is what it usually gets down to at night sometimes colder. I have to cycle the glowplugs a couple times then it will fire up. We will see this year. I have new injectors and a chip. I'll find out in a couple weeks if it will like it or not.
glow plugs will stay on for a max of 2 minutes depending on engine oil temp and air temps are. I though when you said you let the glow plugs warm for 4 seconds you meant turn key on count to 4 and crank. The WTS light is a set time. it never changes but the actual glow plug on time does change any where from 0 to 120 seconds. I Plug my truck in when it starts getting harder to start with out it. consistant 30 degree weather usually.
I need a new glow plug relay, but it looks like a regular starter solenoid. Can I use a regular solenoid with 4 terminals, or is there a significant difference?
I've actually tested this 2 minute timeout by metering the glow plug side of the GPR on a cold startup.
I am thinking that I might install a small 12 volt light bulb to this connection and put the bulb in on my dash somewhere, so that I know if the GPR is working or not.
This still won't tell me how many amps are getting thru the GPR but it will tell me that it is working.
I've often wondered if the contacts get bad on a GPR, will they not pass as many amps to the glow plugs? It might not be as simple as a go/no go situation. Any mechanical contacts can get spotted or pitted over time and this could compromise the relay.