Glow Plug HELP!! not the usual culprit either
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Glow Plug HELP!! not the usual culprit either
ok, i have a stancor gpr with an led light wired to it to see exactly how long the glow plugs stay energized. here recently in some very cold temps, when my glow plugs should have been staying on for 30 seconds to one minute or more, it has started coming on for only about 10-15 seconds and then going out causing some very hard starts with lots of white smoke, never got that before. maybe a puff or two, but now i get a cloud of it. thinking the only thing it could be was a bad relay, i ordered a new stancor replacement gpr and installed it. same thing still happening. on 20-30 degree nights with engine dead cold, gp's only stay on for 10-15 seconds at best.
anyone else had this problem and if so what fixed it? what drives the timing of the gpr staying energized? i heard it was ambient air temp+oil temp+baro pressure? i also checked all of those and they seemed to be reading fine, at normal operating temps. any ideas on what to do next? any help or advice would be much appreciated.
anyone else had this problem and if so what fixed it? what drives the timing of the gpr staying energized? i heard it was ambient air temp+oil temp+baro pressure? i also checked all of those and they seemed to be reading fine, at normal operating temps. any ideas on what to do next? any help or advice would be much appreciated.
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thats a great chart andy, thanks! i will use this pm and try to get to the bottom of this. certainly frustrating.
Yes Les, Bob really seems to know his stuff!
hopefully just a bad EOT sensor and not a PCM baro problem. but if i read your chart correctly andy, pcm baro reading would only affect timing by 5 secs +/-??
based on the chart, mine should be staying on 110+ secs, and it might be on for 10-15 tops
Yes Les, Bob really seems to know his stuff!
hopefully just a bad EOT sensor and not a PCM baro problem. but if i read your chart correctly andy, pcm baro reading would only affect timing by 5 secs +/-??
based on the chart, mine should be staying on 110+ secs, and it might be on for 10-15 tops
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