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Hyundai Sonata 2006 V6 3.3l Very poor MPG

  #1  
Old 04-15-2019, 03:51 AM
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Thread Starter
Join Date: Apr 2019
Posts: 2
Default Hyundai Sonata 2006 V6 3.3l Very poor MPG

I just bought a 2006 Hyundai sonata, well managed and serviced
the bad thing is the MPG is killing, the car reads 11.7MPG CITY, and 12.2MPG
Highway. Am quite dissatisfied and disappointed. Please What can be
done, Am spending a lot of money on Fuel, please I need help
 
  #2  
Old 04-15-2019, 07:34 AM
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Join Date: Aug 2015
Location: Iowa
Posts: 186
Default

Is the check engine light on? What are the codes?
Even if there is no check engine light on please have the computer scanned for codes and pending codes.

Is the engine warming up correctly? A bad thermostat could prevent proper warm up. Are you driving mostly short distances with a cold engine?

Check if the brakes are dragging.
Have a look at the spark plugs.
Check the air filter.
Check the tire pressure.
Check the wheel alignment.

With the fuel consumption this high I suspect there is more than one reason for it.
 
  #3  
Old 04-18-2019, 02:51 AM
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Thread Starter
Join Date: Apr 2019
Posts: 2
Default the check lights are not on, I cleaned the air filter, I changed the spark plugs.

I took it to a mechanic, he changed all that you suggested, the car still reads 12.1MPG in the city.
Am yet to take the car for full diagnosis.





Originally Posted by allegretto View Post
Is the check engine light on? What are the codes?
Even if there is no check engine light on please have the computer scanned for codes and pending codes.

Is the engine warming up correctly? A bad thermostat could prevent proper warm up. Are you driving mostly short distances with a cold engine?

Check if the brakes are dragging.
Have a look at the spark plugs.
Check the air filter.
Check the tire pressure.
Check the wheel alignment.

With the fuel consumption this high I suspect there is more than one reason for it.
 
  #4  
Old 04-18-2019, 12:55 PM
Senior Member
Join Date: Aug 2015
Location: Iowa
Posts: 186
Default

Are you driving mostly short distances with a cold engine?
 
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