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H4-2.0L

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How many miles per gallon does my car get?
Hi there, thanks for writing in. Maximum fuel economy is typically in the 45-65 MPH range. Above 65 MPH, fuel economy falls off dramatically due to wind resistance. Below 45 MPH, engine gearing is not conducive to maximum efficiency but...
Question
My car is only yielding 11km/liter - what should I do?
Hello. A 2016 Impreza 2.0 should yield 28 mpg city 37 mpg highway. If it is only yielding 11 KM/L at 120 KM/PH then there is likely an issue with the vehicle, as it should be yielding close to 15...
Question
Exhaust spacers
Hello - this is not a good idea for several reasons. Yes, exhaust fumes can really be pulled into the cabin by a window that is down, or through a rear hatch. In addition, the leaked exhaust, which is still...
Question
I want to put an exhaust system on my car but it is not street legal, what can I do?
When it comes to this type of exhaust system, there is no workaround that will make it legal. If these exhaust components do not have the air quality resource tag on them, then they cannot legally be used on the...
Question
Clutch whining and the car stalls when the clutch is in - 2013 Subaru BRZ
Hello. There are 2 possibilities for this whining: the clutch throwout bearing (as you suggest) or the pilot bearing. If either of them are failing, they can both whine or cause a rotational noise, and they put additional drag on...
Question
Knock when I turn the steering wheel
Hello, thank you for writing in. You will want to do a full inspection of the steering and suspension components. The CV joints can get damaged from sudden impacts such as you described. The axles, hubs, and steering components can...
Question
P0018
Sensor output has to be directly tested (or the data/waveform viewed on a scanner) and determined to be faulty prior to replacement. If the sensor happens to test good then, the cause lies elsewhere. Code P0018 can set due to...
Question
2013 Subaru Impreza. Speedometer not working. Abs light on check engine light on and brake light on what could be going on?
Hello, thank you for writing in. The multiple lights coming on is a sign that one of the major components in the vehicle is failing. Considering the lights all seem to be related to the ABS or wheel speed sensors,...
Question
my 2013 scion FRS is haaving a rough idle and it almost feels like its just going to shut off what can it be?
Hello, thank you for writing in. If you are receiving a code for the camshaft position sensor, it is likely causing your loss of power. The vehicle must know where the camshaft is to calculate other engine functions accordingly. A...
Question
Can I install a LT1 engine and a T56 transmission into a Subaru BRZ?
Hi there. This application would not be possible without some significant fabrication and full system alternations being completed. If you're going to consider any engine upgrade, stick with the same size and motor mount configuration - as it will have...
Question
Hi I have a 2012 Subaru Impreza when I got in the car this morning the check engine light was on every light was on blinking so I
Exhaust leaks are a high priority to fix due to the dangers of carbon monoxide. Also, dependent on leak location, exhaust leaks can throw off the proper operation of otherwise good oxygen sensors. To request identification of where the exhaust...
Question
i've been told it's very difficult to ge to the spark plugs on a Scion FRS (boxer engine). Is it possible to replace at my home
I am not 100 percent sure that our mobile mechanics are able to provide this service on your Scion. In order to receive a quote, you need to request a spark plug replacement service by clicking this link. Once we...
Question
My catalytic converter is gutted, with no engine lights on. Is this bad for performance?
Hello, thank you for writing in. The catalytic converter is there to remove certain emissions like CO and NOx before your exhaust is pumped into the environment. While this is the practical and "environmentally responsible" thing to do, your vehicle...
Question
Rough idle and Misfire
Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...
Question
Car lights come on brakes are stiff not sure electrical on military base but it won't start.
If the lights were on and burning up fuses even up to 30 amps, then there is a major short in the vehicle's wiring system. Check to see what the lights were tied into when the aftermarket lights were installed....
Question
Q: Jumper cable hooked up wrong.
When reversing the jumper cables is the same as reversing the battery cables. It burns up the fuses, relays, electronic circuits and possibly the computer. If the fuses were replaced and everything in the car is working, then either the...
Question
My car won't start, not even let me inside the car- unlock it, where do I tow it? What do I do?
Hi Dani. Thanks for contacting us today. If you are a member of AAA, you should call them and they will send over a tow truck. Even if the vehicle can't be opened, they can usually get the vehicle on...
Question
I accidentally tapped the battery with a wrench and it sparked. now car won’t start, it doesn’t click, and radio won’t start.
Fuses and fusible links may have opened due to the short circuit. Inasmuch as the vehicle does not start, the simplest thing to do is diagnose the starting circuit first as, in the course of that, other fundamental failures (for...

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