Thread: preheat light
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Old 05-29-2002, 05:07 PM
JimSmith JimSmith is offline
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Join Date: Jul 2001
Location: Old Lyme, Connecticut
Posts: 3,596
gnolo,

That sounds like you have a single or maybe two glow plugs that are not performing correctly, or are on their way out. If they are burned out the system usually causes the glow plug indicator lamp on the dashboard to light up oddly. If they are getting poor electrical connection to the system, they will just not get hot enough in the allotted time. I do not think the timer circuit is "smart" enough to notice whether or not the electrical connections are good or bad as long as they are not open or short. I would check the connections, clean them and put them back carefully, then check the performance again. If it is still bad, maybe you have some bad plugs, in which case, take them out and check them with an Ohmmeter. Jim
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