Skip the auto shop - Our mechanics make house calls

Q: My van is misfiring. Can I drive 400 miles before changing them? I'm traveling home now

asked by on

Can I drive 400 miles to get to my house? AutoZone shows the check engine light is reading as a misfire on my spark plugs. Am I able to drive that amount of distance without having an accident? Can I have this fixed when I get home? Or is it something I have to do

Hi and thanks for contacting YourMechanic. If the Check Engine Light says that your vehicle has a misfire, then you will need to check the spark plugs and wires. I suggest replacing the spark plugs if they have hot spots, burn marks, on them. If a spark plug has fuel on it, then the spark plug is not working. If the spark plug has oil on it, then I would check the cylinder for any possible oil leakage.

The oil will most likely be coming from the valve guide seals. If the spark plug is good and has a good strong blue spark, then check the injector to see if it is firing by unplugging the harness to the injector and listen for the engine to change. If there is no change to the engine, then the injector is not working. If you need assistance the troubleshooting your misfire condition, then seek out a professional, like one from YourMechanic, to inspect the misfire and follow through with repairs.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • My van is misfiring. Can I drive 400 miles before changing them? I'm traveling home now

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: Engine? New car? Greedy mechanics? What's the real deal?

Hi there: We strive to take the high road here at YourMechanic.com. Without being there to inspect your 2004 Dodge Intrepid, it would be irresponsible for us to assume what might be wrong. However, if you're looking for a fair...

Q: My car has been diagnosed with a misfiring cylinder 4. Will it be safe for me to drive it home 100 miles ?

From the description you have provided, it is advisable to have your vehicle's #4 cylinder misfire fixed before taking the 100-mile trip home. Depending on the cause of the misfire, consequential damage could occur to the cylinder wall, piston, and/or...

Q: check engine light on

Hello. To turn off the light you would need to use a scan tool. Using a scan tool give the technician access to the computer to be able to reset the light since there is no issue with the vehicle....

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.