why my 2007 Subaru Outback has high pm while driving when I shift to Neutral. ?

Asked by Apr 02, 2017 at 03:09 PM about the 2007 Subaru Outback 2.5i Basic

Question type: General

I don't have problem to start the car
While I am driving it, the rpm are usually on 1500 when I shift to Neutral
The car has burning lots more gas then usual for Subaru

7 Answers

52,625

Is the check engine light lit?

79,645

If the idle is high I would suspect a vacuum leak or a dirty/faulty IAC (Idle Air Control).

5,710

Spray-clean the throttle body thoroughly; gummed up one won't throw a CEL.

Thanks for all answers so far. No- I don't have check I gone lights at all. I reaped a bad air filter today, but remain the same.

Sorry, the car has no check engine lights

I drove after checking vacuum hoses and stuff but the car still with high RPM while driving and shift to neutral, probably the idle control valve Ned's adjustment or replace? Any idea? Appreciate all answers.

22,335

OK, maybe it won't trigger a check engine light, but, that doesn't mean you don't have one.

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