Q: Car cut off file injectors miss fire after driving 46mi.

asked by on

When I drive for 40 to 50 min. car engine heats up and cut off. The fuel injector miss fire. The won't move until car cool down
My car has an automatic transmission.

Hi there. You will want to start by testing the fuel injector that has tested bad. This can be done using a multimeter. If the resistance of the injector is out of specifications, you will want to replace it. If upon inspection the resistor looks dirty or clogged you can clean it using a fuel injector cleaner.

Judging by the fact this happens when the vehicle gets warm, there is a strong chance the issue is electrical and the injector needs to be replaced. Make sure the related wiring for that injector is inspected as well. You must consider the options that may have caused the problem in the first place. At least visually inspect the wiring and make sure it is not burned, frayed, or damaged. If you need help with this, have a certified professional from YourMechanic diagnose the misfire and assist you with the appropriate fix.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Car cut off file injectors miss fire after driving 46mi.

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: it misses and when it change gear some time it cuts out like it not getting gas and when you gt in overdrive it misses bad

Hi there, thanks for writing in about your 2005 Dodge Durango. Based on the information you gave, I suspect that you have a problem within the ignition system. Although you didn't mention it, I'm sure your Check Engine Light will...

Q: My truck is burning oil and the engine is hot when your outside of the truck

Hello. If your truck is telling again that you need an oil change too soon then there is either something going on with the engine, or the system was not reset when the oil was changed. Most of the time...

Q: Starting Issue - 2006 Jeep Comander

Hey there. A starter, like any other mechanical and electrical part, is subject to failing sometimes for no apparent reason. However, sometimes this is misdiagnosed as well and often times mistaken for something much more simple like a fuse, relay,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...