Skip the auto shop - Our mechanics make house calls

Q: Can an electric fuel injected engine like my Toyota Tundra backfire while driving?

asked by on

Driving to work at about 40 MPH and heard loud bang like a shot gun. Tires were ok, under hood was normal, no dents in top of cab, spare tire ok, battery not exploded.

My car has 40000 miles.
My car has an automatic transmission.

A: Hey there, thanks for your question. I’d be...

Hey there, thanks for your question. I’d be happy to provide insight. While this is possible, it is probably not likely to happen with your 2014 Toyota Tundra. An engine backfire is typically caused by a spark plug, or multiple spark plugs, igniting the fuel in their cylinder out of turn, in a part of the combustion process where the exhaust valve is open on that cylinder. The modern electronic fuel injected engines have multiple sensors that monitor and activate most ignition and fuel flow functions on your truck. However, it may be possible that one of these sensors was faulty for a brief moment, causing a backfire. If this occurred, it would have triggered your Check Engine Light. Keep an eye on the truck and if you hear that noise again, contact one of our certified mechanics for assistance diagnosing and repairing the backfiring issue. Hope this helps and best of luck!

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!

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 Light On - System Too Lean.

Hi there. Check the mass air flow sensor (MAF) and see if it got unplugged. When the oil change was done, most likely the air filter was checked and the MAF sensor was disturbed. Also, check all of the vacuum...

Q: My car backfires at 50 mph.

Hi there. There is a timing problem with your engine. Check the vacuum advance to see if its advancing when the engine is at a higher rpm. Also check the spark plugs and wires for if they are burned but...

Q: My engine is overheating.

Hi there. Check the condition of the coolant and see if its full and new. I recommend putting a new radiator cap on and putting in a new thermostat. Once a thermostat is introduced to the atmosphere after being submerged...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...