Skip the auto shop - Our mechanics make house calls

Q: is one or more glow plugs not working

asked by on

When I'm driving the car if I accelerate it feels like the car is misfiring but if I get up to speed slowly it's hardly noticeable but then accelerate and the same again feels like misfiring car starts without any problems

My car has 110000 miles.
My car has a manual transmission.

Diesel engines are equipped with glow plugs to assist with cold starting. Diesel fuel is a bit thicker in cold weather and can make the engine difficult to start. The glow plugs warm the diesel fuel as it enters the engine to thin it out and help the vehicle start easier. Glow plugs play no role in engine performance once the vehicle is started. Since diesel engines do not have an ignition system(spark plugs, ignition coils,etc), they rely on proper fuel supply for each cylinder to fire properly. A misfiring diesel engine may have restricted fuel injectors, restricted fuel filters, or a failing fuel pump. Have a certified technician look into the misfiring condition as soon as possible. Continued misfiring can damage the engine.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. is one or more glow plugs not working

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Solenoid valve having trouble starting

This vehicle has a smaller separate relay in the dash panel fuse box that controls the bigger relay on the starter. The starter uses the big relay to get the starter moving. If the starter stays engaged after the vehicle...

Q: When I go turn my car off and pull out my key, everything shuts off and a few seconds later the radio turns on without the key.

Hi there. There is an issue with the ignition system in your vehicle. Check the wiring under the dash and see if any wires may have fell causing an to be stepped on or come in contact with other wiring....

Q: Front wheel not turning.

The part you describe is the tie rod end. I hope you were not driving to find this out. The tie rod is not a common failed part and would need to be inspected as to why it failed. The...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...