Why is my glow plug light staying on?
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.
How long does a glow plug relay last?
100,000 miles
Glow plugs should last for as long as 100,000 miles; they will gradually deteriorate due to wear and tear over this period. The good news is that not only are glow plugs incredibly long-lasting, they’re also amongst the most cost-effective car parts to replace.
What do you do when your glow plug light comes on?
You can probably drive safely with the Glow Plug Light on as long as you take it easy. But you do need to get it checked out. Always remember, your warning lights are trying to tell you something, and determining whether the message is serious or of little consequence is best left up to a qualified mechanic.
Do glow plugs stay on after ignition?
The glow plugs are controlled by a timer and that time varies and is going to be determined by the computor using sensors, generally an oil temperature sensor. It will also remain on after the engine starts based on that oil temp, sometimes as long as 5 minutes, in order to keep the combustion chamber temps up until the engine begins to warm enough to heat the intake air on its own.
Is it safe to drive with the glow plug light on?
You can probably drive safely with the Glow Plug Light on as long as you take it easy. But you do need to get it checked out. Always remember, your warning lights are trying to tell you something, and determining whether the message is serious or of little consequence is best left up to a qualified mechanic.
How to tell if glow plugs are working?
Part 1 of 1: Testing your glow plugs Determine the multimeter’s resistance value. Before testing the terminals, you must determine the resistance value of your digital multimeter. Locate the glow plugs in your engine. Most glow plugs are installed in the cylinder heads and will have a heavy gauge wire, similar to a regular spark Disconnect the glow plug wires.
Can leaving the glow plugs on damage them?
Leaving the igniter on will make the glow plug go bad faster and will damage them. Another sign of damage of the glow plug is when the coils do not glow. If that happens, then understand that you need to replace your glow plug.