Question about 2008 Mazda 3 2.0

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2008 mazda 3, huge drop in gas mileage, what could cause this?

In the past 6 months my car has a huge loss in gas mileage. What could be the cause?

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Posted on Jan 02, 2017

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SOURCE: mazda 6 ts 2.0 diesel

Bro, you can check this by removing the front upper cover of your engine. If you see a chain, then it's chain driven but if you see a rubber belt that has gear like teeth on its inner surface then, it's a belt.
Bro I really don't kow how much it costs, kindly check the website of your car manufacturer and go to costumer support.

Posted on Nov 06, 2008

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SOURCE: mpg not right

You could have a bad O2 sensor which is either giving to much or to little oxygen to your fuel system, also you could check your spark plugs and see if they are fowled. your car could be running very lean which means your using more gas then your suppose to. normally if your running lean and are used to cars you can smell the excess fuel in the air. Try checking some of these things and see if anything is wrong.

Posted on Aug 11, 2009

roniecon
  • 6826 Answers

SOURCE: Losing power

Check the output from the alternator to the battery,with everything on,lights,and ac,high blower motor setting.It should read 13.65 volts,to 14.25 volts,if it is lower than this,then the alternator is bad,just because the battery maybe starting the vehicle good,and seems strong,does not mean the alternator is working correctly.No days,vehicles ignition/computer systems need a good bit of voltage to run the car,and charge the battery.

Posted on Jan 23, 2010

  • 2 Answers

SOURCE: mazda millenia 6 cil 1999 gas tank size

I think its about 14-15 gallons. I get 21 per gallon and about 300-325 per tank...same car. I would check your O2 sensors too. When mine was messed up the mixture changed and my mpg dropped to about 16. You should see a CEL light on your dash telliing you your off. Changing plugs and wires also could be an issue

Posted on Feb 10, 2010

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SOURCE: hi .....my mazda 3 2008 gas pedal not responding

I don't know if your Mazda is all electrically ran, but it sounds like it. It may be as simple as a fuse, but mine ended up being the entire fuse block had to be replaced. Also there may just be a loose connection, especially after an accident.

Posted on Mar 04, 2010

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1 Answer

Where is the throttle body located?


old post , and great question

the TB is a thing that contains the AIR throttle, the body holds

that TV throttle valve (or some call it a TP throttle plate)

this car has 6 engines, and varies by country. what country>?

what engine? (USA cars have a hood EPA tag, it states the engine)



sure cleaning it can help and for sure with throttle by wire.

the body gets full of EGR/PCV crap. (called GUNK) and if not

removed on high mileage cars, it jams the silly throttle by wire

motor. (and related\'s)

why not scan the PCM and SEE ALL DTC errors.

that be first. !!!



loose power has many causes, up to 50.

why not scan it first, (the CEL lamp to me is useless , unless stuck on)

scan it first.

this engine has many limphome modes (suzuki failsafe)

and will run slow. in limp mode.

scan it.

the TBW , throttle by wire has it\'s own limp mode.

the transmission too, and others.



The TBW has up to 4 TPS sensors. 2 on the foot and 2 in the TB

if ANY of the 4 , do not AGREE, you go to LIMP HOME MODE>

or end up like a Toyota and huge class action lawsuits.



loss of power, not transmission caused, (slips or skips gears)

is engine power loss.

cause by (top ones of 50)

1: never getting a tuneup. and for sure the 60k mile.

2: misfire, caused by 3 major things. ask.

3: flooding.

4: bad spark see #1

5: clogged air filters see #1

6: clogged fuel filter.

7: weak fuel pump.

8: and the big one is loss o f engine compression for huge list of causes.

9: not scanning the PCM and believing what it told you. !!!

Jun 21, 2014 | 2007 Suzuki Forenza Sedan

1 Answer

2004 chevy trailblazer power loss, high rpms, low ppms


Check the timing chain. Some times the chain will shift with worn teeth and get out of synch. This will cause the engine to lose power and back fire. Sometimes with a flame through the carb. I did that one once. Easy fix if it is the problem.

Oct 28, 2013 | 2004 Chevrolet TrailBlazer

1 Answer

What could cause gas mileage to go down on mazda b-2000


air flow air filter dirty feul filter bad injectors bad spark plugs bad wires to spark plugs loss of compession

Jan 04, 2013 | 1992 Geo Metro

2 Answers

What causes the AC line to frost-up om 2004 Mazda 6?


Condensation. If its happening to the larger of the two lines on a hot humid day this is normall.

Sep 11, 2012 | Mazda Cars & Trucks

1 Answer

04 mazda 3s 2.3l. the emgine misfires randomly but frequently. does have power loss and poor gas mileage. there is no check engine light and had recent sparkplug change with motorcraft platnums and oil...


I have changed plugs using the platinum plugs and the problem don't go away. These plugs can make a car run worse in some cases. I have found it best to use the OEM or a step above on 4 cylin and 6 cylin engines. The Plats work fine in 8 cylin engines. You could also have a bad plug wire. The plug wire could be jumping spark. At night, open the hood, start the car with lights off. Look around the plug wires for sparks jumping. If a wire is bad, the spark is leaving the wire and grounding itself to the nearest metal causing rough engine idle and misfire.

Jun 16, 2010 | 2004 Mazda 3

2 Answers

Mazda millenia 6 cil 1999 gas tank size


new plugs,plug wires,air filter,keep air in tires at 35psi,

Dec 18, 2009 | 1999 Mazda Millenia

1 Answer

Mpg not right


You could have a bad O2 sensor which is either giving to much or to little oxygen to your fuel system, also you could check your spark plugs and see if they are fowled. your car could be running very lean which means your using more gas then your suppose to. normally if your running lean and are used to cars you can smell the excess fuel in the air. Try checking some of these things and see if anything is wrong.

May 26, 2009 | 2005 Mazda 3

1 Answer

Poor gas mileage on my jeep liberty


Did this happen overnight or was it a gradual loss? Did you do any kind of repair before you lost the gas mialage? Is there a check engine light on or did it come on and go off? Did anything weird happen before the jeep got bad gas mileage? It's hard to diagnose a problem like this without actually touching the car.
Any other info might help me steer you in the right direction.

Nov 24, 2008 | 2005 Jeep Liberty

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