Question about 1992 Ford F250

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Glow plug light stays on for a long time - 1992 Ford F250

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This will happen as it gets colder.. preheater needs to reach temperature before starting..in really cold weather we used to turn the key on and off a half dozen times in order to get these glowplugs really warm enough to start these diesel trucks..

Posted on Dec 25, 2013

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Hi, 2007 Santa Fe pre heat light stays on for about one second which I've timed and won't start. Connected test light at plug to glow plug light on for 1 second


Sounds like a faulty glow-plug controller.
I have wired the glow plugs directly, and it worked fine until my brother held the button too long and burned them out.

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What is the problem ? I have a 1993 ford f 250 7.3 liter diesel. New Glow Plugs. Glow plug light comes on and goes out very quick , engine cranks excessively , before starting


I think you nailed it with the amount of time you glow plug light. It should stay on until you engage or it should be timed to stay on longer.

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Mercedes class 200 cdi. when i start the car the glow plug lights stays on for couple of mins then goes of?????


This is normal, the glow plugs are building heat in the cylinders to help ignite the diesel. They should cycle off and on until the engine warms up.

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2004 landcrusier 100 series. glow plug light stays on all the time, although the glow plugs are not being supplied power. starts and runs ok.


THIS COMES ALL FROM "WAIT TO START" DO YOU WAIT TO START? IF NOT,THEN THE GLOW PLUGS ARE BUR'NT OUT,WHICH YOU WILL NOT NEED UNTIL FALL. OR MAYBE YOU'VE GOT IT HOOKED ON EITHER,STARTING FLUID,IN WHICH CASE,I SUGGEST YOU REPLACE THOSE GLOW PLUGS NOW.OR ELSE YOU'RE MOVING ON TO EVEN WORSE ISSUES.LET ME ASK YOU THIS,WHY ARE'NT THE GLOW PLUGS BEING DENIED POWER? AFTER ALL THEY START THE ENGINE? AFTER YOU INSERT THE KEY INTO THE SWITCH,WAIT TO START,LIGHTS UP.IF YOU'VE NOT WAITED UNTIL THAT WAIT TO START LIGHT GOES OFF,,,YOU'VE BURNT THE GLOW PLUGS UP.THE ONLY THING TO DO IS REPLACE THEM ALL.IF YOU'VE BEEN USING STARTING FLUID OR EITHER TO START YOUR ENGINE FOR A LONG PERIOD OF TIME,FORGET REPLACING THE GLOW PLUGS,BECAUSE YOUR ENGINE IS ADDICTED TO THE BOTTLE(EITHER) YOU MAY BE ONE OF THE LUCKY ONES,REPLACING THE GLOW PLUGS MAY RESOLVE YOUR ISSUES.BUT,WAIT TO START,,AIN'T NO JOKE. BEST OF LUCK TO YOU & YOURS!

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Why is glow plug light flashing after boosting in very cold weather?


hi.
in very cold weather, the glow plugs may stay on for up to a minute after starting the car to assist until the engine starts to warm up. the light flashes to tell you that the plugs are still on.
the time the light stays on can vary due to the temperarure.

Feb 26, 2011 | 2000 Volkswagen Jetta TDI

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Could a faulty coolant temp sensor make the glow plugs run all the time on a 1983 Mercedes 300CD?


No the glow plugs circuit is separate. They actually are on a timed delay shut off. Check the glow plug relay module behind the driver side headlamp assembly. If the light on the cluster is staying on all the time it's simply letting you know there is a fault in the glow plug circuit. Doesn't actually mean that the glow plugs are staying on all the time. You might just have a bad glow plug which is breaking the circuit therefor the glow plug light stays on. To check this use a test light and have someone turn on and off the ignition to see which plug doesn't light up.

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VW passat glow plug problem


Yes you have a defective glow plug relay if you have your owners manual you can find it and replace it, the unit also has a timer on it, if you don't have a book look for the glow plugs and follow the wires from the glow plugs to where they terminate there you will find the relay unit and replace it, to test the glow plugs you remove the wires and test each plug by pulling off the wire and with a cheep ohm meter touch one end to the glow plug and one end to ground if it swings almost al the way over it is ok, if it dos not move then that glow plug is bad. if you find 2 or more bad then replace them all, and if a glow plug has shorted and caused this problem you will have to replace the glow plug relay. Good luck.

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I just replaced the glow plug relay dur to hard starting


HAVE YOU REPLACED ALL YOUR GLOW PLUGS RECENTLY? EVEN THOUGH THE GLOW PLUGS APEAR TO BE WORKING I FIND WITH AGE THEY NO LONGER HEAT UP QUICKLY ENOUGH BEFORE CONTROLER TIMES OUT. THEREFOR CREATES A HARD OR NO START CONDITION.

Jan 17, 2009 | 1992 Ford F250

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Glow plug light


Thats not good, if the glow plugs are being charged the whole time They will burn out quickly if not already. Even if the glow plugs are burned out the engine will still start unless your in a really cold region. Sounds like the GP (GP = glow plug) relay is fused in the open position, its located above the fuse panel refer to your owners manual to its exact location above the fuse panel. Just pull this relay out and your light should go out while engine is running. If this works simply replace the relay from your local Volkswagen dealer, but the bad news is I would highly recommend pulling the GP's out and checking to see if theres anything left of them. There not built to be on constant. Good luck Hope thats your problem just a relay.

Dec 19, 2008 | 1991 Volkswagen Golf

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