Q: Minivan burning raw fuel and has rumbling noise - 1997 Ford Aerostar

asked by on

I think my minivan is burning up raw fuel because I have seen the mpg drop down and I can smell it. When checking the car computer, it read bad plugs. I performed a full change of the plugs again (less than 60,000 miles ago), plus the fuel filter, the wires, and a full change of the plugs. The car is still running with poor performance. When I'm driving, there is a rumbling noise. It sounds like it is not getting the normal speed and is not running on all six cylinders. Even after replacing the PCV valve and the air filter, it still isn't functioning properly and is having the same issues. Can you tell me how to fix these problems?

A: Hello. Is the Check Engine Light on? If the...

Hello. Is the Check Engine Light on? If there is a code set, then this will give the person diagnosing a starting point. Depending on what plugs that you put in your van, they could be due for a change in as little as 30,000 miles. It is possible that there may be a sensor or other engine component such as an ignition coil that is causing your vehicle to run poorly. The raw fuel smell and poor mileage may be due to a fuel leak somewhere. If you would like to have this diagnosed, a certified technician from YourMechanic can come to your home or office to inspect the decrease in mileage and suggest corrections for your specific situation.

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・Save up to 30%

Get a quote

What others are asking

Q: Broke vapor line on fuel pump assembly, could i still drive car without any issues?

You should not drive it this way. Did you know that gasoline vapor is more flammable than liquid gas? You should have it fixed before driving it to be on the safe side. If you need assistance with this, seek...

Q: Match powder smell of the engine

It's most likely gasoline. Go buy your gasoline someplace else. It's probably got high sulfur content that has burned and you are going to smell it. Occasionally, some oils also have a high sulfur content, so you might change the...

Q: BMW E39 has no response

Yes, it probably is the main computer. It's a really common problem. If you can't get any response from the scan tool, there are really only three things that can go wrong: the main computer could be bad, the wiring...

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...
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...
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.