Q: what can cause high fuel consumption in a 4AGE 1.6GLI
Spark Plugs has a black velvet soot,with a black smoke from exhaust which smells petrol.(incomplete combustion)
My car has 210000 miles.
My car has a manual transmission.
Recommended Services
| Car is getting worse gas mileage Inspection | $94.99 - $114.99 | Get a Quote |
Hi there:
The black soot on your spark plugs indicates that you’re most likely experiencing a inefficient combustion that is creating more particulate matter (unburned fuel). This could be caused by a vacuum leak, a bad mass air flow sensor or most likely, damage to the EGR valve or other emissions control components. The best way to determine what’s the cause of your poor fuel economy issue, you should have a professional mobile mechanic complete a car is getting poor fuel economy inspection; so they can pinpoint the source of your issues.
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
What others are asking
What features are included for the rear seat entertainment?
If the truck is equipped with the Rear Seat Entertainment (RSE) system, which is an option on trucks that have a rear seating area, then there are a few interesting features to take advantage of: The screen that is made...
How do I read the speedometer in a 2012 Chevrolet Equinox?
The speedometer is on the right side of your instrument control panel. It tells you how fast you are driving at. The speedometer is a semicircle with numbers on it; the numbers represent the speed in either mph or km/h....
Braking causes steering wheel to vibrate
The front rotors are warped, most likely, but an inspection of your brakes and front suspension is a good idea to ensure that no other problems are present. You should have a thorough diagnostic inspection of the steering wheel vibration...
Car has intermittent acceleration problems - 2001 BMW 325
There are a couple of places to start looking. The proper fuel pressure is required for good performance and a technician can check fuel pressure to see it if is low which will point to a clogged fuel filter or...
Cooling fans not working. Replaced sensor, relays, thermostat and radiator fan.
Hello there, many different faults will cause the fans on your 1995 Chevrolet Camaro to not turn on. You have replaced many of the common failure points, but there are a few other potential causes. The most likely is the...
I've just had my car aligned and new tires put on, and my car when at highway speeds feels loose, and wanders from side to side.
Hi. It sounds like there may be some loose suspension and steering parts in the front end of your car. There is a possibility that the steering parts that were loosened to do the alignment were not tightened all the...
Brake pedal hit the floor. Very hard to stop car.
First thing is you do not have any brakes and should not attempt to drive the vehicle until the brakes are repaired. The brake pedal is going to the floor (https://www.yourmechanic.com/services/brake-pedal-is-lower-than-usual-inspection) due to a major brake fluid leak from the...
eva PO597 engined coolant thermostat heater control circuit from obd diagnostic tool
Hi there. For the code P0597 (https://www.obd-codes.com/p0597) to appear, there is an issue with the engine cooling system. Check the harness to the thermostat housing and a good connection and make sure that there is corrosion. Check for any coolant...
Battery voltage is low.
Hello. If the battery voltage reads low on the gauge then that is a sign that the charging system is not functioning correctly. If the alternator is brand new then there is little chance that it is the source of...
Related articles
The Best Used Cars to Buy If You’re a Photographer
If If you are a photographer, and you’re considering buying a used car, the big thing to consider is the type of photography you do. Thanks to the advances in digital photography, chances are you’re not hauling around a lot...
How to Get Toyota Dealership Certified
Toyota car dealerships offer automotive technician jobs to mechanics who are certified through the Toyota Professional Automotive Technician program.
Industry News for Automotive Techs: October 29 - November 4
Toyota and Getaround's smartphone key, future McLaren cars, DMCA car hacking, a fire at Ford's headquarters, and Chevrolet's SEMA 2016 show cars.
Browse other content
Estimates
Cities