Skip the auto shop - Our mechanics make house calls

How Long Do Glow Plugs & Timers Last?

Glow Plugs and Timer

The only way that a diesel engine will be able to fire off and run is by having a set of functional glow plugs. The glow plugs in a diesel engine perform a very specific job that is vital in the smooth running of the vehicle. When the car key is turned over, the glow plugs release an electrical spark that helps to start the combustion process. The timer that is on the diesel engine helps to ensure that the glow plugs fire at exactly the right time. Each time the key of the diesel engine is turned over, the glow plugs and timer will have to work.

Usually, the glow plugs on a diesel engine will last around 100,000 miles, but in some cases will wear out before then. The continuous use that these plugs get is a major factor in why they will usually burn out quickly. Due to the location of the glow plugs, it can be a bit difficult to check them. The timer on the diesel vehicle will usually not get a lot of attention until there are issues with it. It is your job to make sure that the issues with the glow plugs and timer are fixed in a hurry in order to reduce the amount of damage done to the diesel vehicle.

The internal components of an engine are put through the paces due to the heat that they are exposed. When the glow plugs and timer on a vehicle begin to wear out, you will usually have a fair amount of warning signs that you will notice. By taking notice of the warning signs that a vehicle gives, you will be able to get the glow plugs and timer fixed in a hurry. The following are some of the problems you may start to have when the glow plugs and timer on your vehicle are going bad:

  • The cylinders are having a problem with misfiring
  • An increase in the amount of smoke that is coming out of the tail pipe
  • The vehicle will start slowly or not start at all

Getting the issues with the glow plugs and time on a car will help to keep it reliable regardless of the conditions on the road. If you think you are having problems with your glow plugs and timer, have a certified mechanic replace your glow plugs and timer.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...
P0291OBD-II Trouble Code: Cylinder 11 Injector Circuit Low
P0291 code definition When your vehicle’s PCM registers the P0291 code, it means that a voltage reading came from the fuel injector circuit – for cylinder number 11’s fuel injector –...
P0359 OBD-II Trouble Code: Ignition Coil I Primary/Secondary Circuit Malfunction
P0359 code definition The P0359 code indicates that a fault has been detected in one of the vehicle’s ignition coils, generally the number 9 coil. This code can also be associated...


Related questions

Q: oil pan replacement

You have a two part oil pan and you are looking at the lower pan part. If this is the part that is damaged then you can get it out by disconnecting the motor mounts and lifting the motor to...

Q: My truck won't start on the key but will start straight up on a jump start I have changed the glow plugs and the deisel pipes

Hello. If your car will not start on its own, but will with a jump start, then the first thing I would check is the battery. If the battery is old or worn it may no longer have enough cranking...

Q: How Are Diesel and Gasoline Engines Different?

There are two main differences between gasoline and diesel engines. Gasoline engines use gasoline for fuel and spark ignition to ignite the fuel. Diesel engines use diesel fuel and compression for ignition to ignite the fuel. There are also many...