Maverick glow plug light wont come on - Cars & Trucks

glow plugs dont last for ever
have them visually inspected

they need to heat up to spec or motor wont start

what motor or vehicle ?

possibly depend what you mean by first time a few turns after glow plugs light turns off should start it straight away people have this habit of turning the car over before the glow plug light goes off do it a few time s to make sure the plugs are warm if its realy strugaling to start its probably the glow plugs there a bit expensive but not pocket braking

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

Is It Safe to Drive With the Glow Plug Light On? ' YourMechanic Advice

https://www.yourmechanic.com/article/is-it-safe-to-drive-with-the-glow-plug-light-on Glow plug light wont go out Google Search

glow plug light and glow plug are not on same system
check at gow plug conection (top of valve cover both side
follow from relay front valve vover right side silver box)
power 12 volts on all 4 wires in both conector left and right
if not replace relay if 12 volts relay ok (test light clip on ground)
then check glow plug (test light clip on positive ) touch wires going
to glow plug should light up if ok (quick test ) if any fail replaced
if all seems ok look at the oil injection system most common
problem with these motors I have yet to replaced a glow plug or relay

sounds like a glow plug problem,if it starts o.k. when warm,but not when cold,does it smoke a lot when trying to start it cold,if so i would say your glow plugs are either burned out or theres no power to them when you turn on the key,do you see the glow plug light on the dash,it may light,but that doesn,t mean the glow plugs are getting power

your glow plugs are probably bad change your glow plugs

Bulb or relay fault.

Has glow plugs --check them. you can use a 12v test light or an volt/ohm meter to test each plug. Disconnect the connector on the glow-plug ,then and touch with a 12v test light --one lead to a12v supply.If the test light lights up that plug is good. or with a volt/ohm meter ,one lead to ground and the other touching the tip of a glow-plug--that's on the ohm's scale --if it reads --showing continuity,then that plug is good.
If all check good you may have a bad glow-plug controller.

sounds like a glow pug fault.it will flash if one glow plug has a fault.

Your problem sounds like the glow plug relay is faulty. It sees to be stuck in the closed position. It is mounted on the fuse board.
John