Question about Ford F-250
Wait to start light wont go out we start the truck and the light stays on we unplugged the glow plugs light is still on at all times that the key is on we changed the ECM and the glow plug relay we checked power at both ends of the relay we key on next we are changing the ambient temp switch to make sure it wasn't a instrument prob
Your diesel vehicle is equipped with glow plugs, and also with a Glow Plug Light that will either come on and stay on, or flash or blink when a fault is detected by the ECU (engine management unit). When the Glow Plug Light comes on, the ECU stores information about the condition that has caused it to come on.4 Jan 2016
Glow plug light wont go out Google Search
Posted on Oct 25, 2017
Very common problem in our shop. I bet you it is the main power relay located under the dash on the driver's side. That relay failure is consistent with your symptoms.
Posted on Aug 17, 2008
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.
Posted on Feb 10, 2009
Have you checked all of your vacuum hoses for leaks? Any vacuum leak, even intake manifold or throttle body gasket, will cause an engine stall right after starting. Likewise with a fuel pressure problem. If you aren't getting voltage, maybe whatever switch starts your glow plug cycle(either turning ignition on or opening driver door, depending on model) is defective, or any of the wiring of the circuit. It's a cheaper guess.
Posted on Feb 26, 2009
the glow plug relay is a little black box normally located in the fues box, the relay regulates power to the glow plugs, if the relay is not functioning correctly the plugs will not heat enough or, you will have to allow a longer time to let them heat up, it acts like a switch as such, when you turn on your ignition it switches over to make a contact inside, which inturn starts the heating prosess of the glow plugs when they are at the correct tempreture or the onbored computer detects they are it then switches back , without it , say just using a fuse instead, your glowplugs will just get hotter and hotter till they melted, and no you dont have to change the glow plugs hope this helps, ime not good at explaining stuff in writing lol
Posted on Jan 30, 2010
Testimonial: "Good advice, I understand the concept of what i need to replace, now i can sort the problem out myself. CHEERZ u guys save us ppl money and time. "
SOURCE: 85 ford 6.9 diesel, the
Have you checked for power on the fuel shut-off solenoid on the injection pump? There are two wires to the pump. One is the fuel shut-off the other is the cold advance. Both should be hot with the key on when the engine is cold. Do you hear the glow plug relay clicking when you turn the key on?
Posted on May 17, 2010
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