Skip the auto shop - Our mechanics make house calls

Q: It has a bad miss and back fires sometimes I have changed the spark plugs and fuel filter what else could it be

asked by on

It has a bad miss I have changed the plugs and the fuel filter still missing what else can I try it is a 1992 bmw 325i

My car has 280000 miles.
My car has a manual transmission.

A: Hello there, it is very common to have a mi...

Hello there, it is very common to have a misfire fault as vehicles age and go up in mileage. The most likely cause would be the ignition coils, fuel pump, fuel injector, MAF sensor, oxygen sensor, or a wiring fault. If you need some assistance with this, consider enlisting a qualified technician, such as one from YourMechanic, who will be able to diagnose your misfire fault and perform any repairs required.

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

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: Car not starting in temperatures over 80 degrees

Hi there. This can be a common issue that vehicles encounter when the temperature outside is warm or if there is a sticky starter solenoid. The solenoid will stick even if sufficient current is applied to its switch. I'd suggest...

Q: Brakes

One of the most common causes of the brake pedal going to the floor is a loss of brake fluid. Generally, this is easy to detect due to the fact that there is usually brake fluid leaking on the ground...

Q: How would i know that i need to replace the vanos?

The VANOS is a variable camshaft timing system that uses engine oil pressure to change the camshaft position. The VANOS solenoid is an electrically operated valve that diverts oil pressure to the correct devices under certain conditions. Usually the first...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.