MY engine has been stalling frequently for a month or so. I was keep delaying on the fix. Now I have a buyer for the car and need to fix it right away.

Symptoms
- Hesitation/Loss of power- especially in high RPM.
- Hissing sound from engine bay- It seems like air leakage from somewhere. I don't know if this is normal. I haven't owned this car long enough.
- Engine stall- This is completely random. It happens at idle. Happens when RPM is falling from deaccelation/braking at a stop sign.

I have a week and half to fix this car.

Please help me out here!

 

sounds like a vacuum leak

 

yup, check the hoses, PCV, etc...

 

for vacuum leak, though if you have an intake, sometimes a struggling IAC will make a hiss...


ck for vac leaks first.

 

SOrry. I'm a Max noob. I owned wrx before. How do I check the vacuum leak??

 

same way as a wrx

 

no vacuum leak. I checked some hoses and there's nothing. But car didn't stall at all today. Can it be fixed by itself?

 

Do you have any mods done to the car? Maybe, if you have an intake, one of the vacuum lines is loose.

 

did you clean out your throttle body if you did then that's where the leak is coming from. You could have leak on the pressure gasket between the throttle body and the intake manifold.

 

is that all you did was ck for loose vacuum hoses? ck with brake cleaner or smoke test with the engine off...