Skip the auto shop - Our mechanics make house calls

Q: Engine problems.

asked by on

I replaced the spark plugs, spark plug wires, distributor cap and rotor. I can feel that it has all the power it needs but it doesn't want to give it. If I get on the throttle to much it back fires continually. It also has a rich fuel mixture. I just can't figure it out.
My car has an automatic transmission.

Hello.

From what you describe it would appear likely that the backfiring and performance issues are a result of the fuel problem. A rich fuel mixture can be caused by a wide variety of issues. A few things I would look into are the fuel pressure regulator, the fuel pump, and the injectors. If the Check Engine Light is on, I would also retrieve the trouble codes, as a sensor issue can also cause the engine to run rich. As engine performance issues can sometimes be difficult to diagnose, I would recommend having the vehicle diagnosed by a professional technician, such as one from YourMechanic, to diagnose the loss of power with your car.

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: How do I shift out of PARK?

In order to shift from PARK to REVERSE or DRIVE (in an automatic transmission), you have to have your foot firmly pressed on the brake pedal. This ensures maximum safety when you operate your vehicle.

Q: Loss of power

You should have the fuel pressure checked to see if it is in specifications. If it is then problem is going to most likely be carbon build up on the injectors and intake valves. You can run cleaner through fuel...

Q: Car won't start

There are several issues that could be related to your car not starting: Faulty crankshaft sensor Faulty camshaft sensor Burnt engine valves Blown head gasket No spark getting to the spark plug Lack of fuel pressure from the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...