Q: Check engine light on a lot

asked by on November 03, 2015

The Check Engine light in my 2007 Subaru Forester (47k miles) is on quite a bit but just recently it has been on pretty consistently. I had it diagnosed and it was said that my gas tank may have a leak. I tightened the gas cap and i’ve done everything I can to try to find the leak or find some issue but I cannot. Is this normal, should I ignore it once I don’t find a problem?

Hello Jacqueline! Thank you for writing in with this question. This problem could be related to a bad gas cap o-ring, or something more involved like an evaporative emissions system leak, or canister purge solenoid problem. Since the Check Engine Light is illuminated, a professional from YourMechanic can scan the computer for codes to find the root cause of the problem. Ideally, a fuel pressure test would be performed as well as a visual inspection of all vacuum lines.

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

Blown engine, is the repair cost worth it?

My first question to you would be to ask you why the engine is being replaced. Did you already have the problem diagnosed and were told you need an new engine? I would need more information to properly diagnose your...

water is leaking from my radiator. I have to put antifreeze every other day. I put stop leak but it did not work and my A/C stopped working

If you are losing coolant from your radiator, the radiator will need to be replaced in order to stop the leak. When your coolant level drops past a certain point, the air conditioning will no longer work because the engine...

Car leaks coolant but not overheating

Engine coolant can leak externally through a hose, radiator, water pump, etc. or internally due to a leaking head gasket and sometimes a leaking intake manifold gasket depending on the engine design. External leaks are typically found by simple pressure...

My check engine light turned on and it also notified me that the traction control turned off

I do not recommend driving the vehicle until the car is diagnosed as to why the lights came on. The issue may constitute your vehicle to be unsafe to drive and should only be driven only to get to a...

Head gaskets leaking

These engines, if turbocharged, can have various problems; the system over-boosted and blew the head gaskets, or the engine overheated and warped the heads, causing the gaskets to leak. Either way, this may have damaged the heads, so the repair...

I have an exhaust leak

The exhaust manifolds are known to warp on these engines, causing an exhaust leak. This is typically most noticeable when the engine is cold, before the metal heats up and expands. The only solution is to replace the manifold(s). However,...

Intake manifold swirl flap leaking air and control bar as come off 2007 Saab 9-3

Hello - this "intake swirl runner" problem may require removal, and repair or possibly replacement, of the intake manifold. The "swirl flaps" are internal to the intake manifold, and work to keep air velocity high during low speed operation for...

Cant get brake caliper piston to release.

if you are trying to push back the rear caliper pistons and tried to push back the piston without rotating the piston at the same time then you may have damaged the parking brake mechanism inside the caliper. You should...

Heater not working properly, has oil leak.

It sounds like the problem could be with the blower motor resistor. If you only have one speed that the motor works on or the blower motor stops working all together you may need to have this replaced. A technician...

Related articles

P0077 OBD-II Trouble Code: Intake Valve Control Solenoid Circuit High (Bank 1)
P0077 P0077 code definition Intake Valve Control Solenoid Circuit High (Bank 1) What the P0077 code means P0077 is a generic OBD2 code that is shown when there is a problem with the Bank 1 intake valve control circuit....
P0552 OBD-II Trouble Code: Power Steering Pressure Sensor Circuit Low Input
P0552 means there is an issue with the power steering pressure sensor circuit often cause by failure of the steering pump or poor wiring/connection.
P0456 OBD-II Trouble Code: Evaporative Emissions System Small Leak Detected
P0456 code definition Evaporative Emissions System Small Leak Detected What the P0456 code means P0456 is an OBD-II generic code that the...