Subaru Forester

**dreamur** · July 13th, 2016 08:36 PM

Could it be the compressor?

Sent from my SM-N910C using Tapatalk

**MR_BIG18** · July 13th, 2016 09:11 PM

Parang i notice it in the mornings.

**number001** · July 13th, 2016 09:34 PM

Did the check-light come on?

At only 7,0xx kms, one morning I experienced rough/weak idle. Idle was around 800-900 rpm instead of the usual 1100 rpm. But with noticeable vibration. Later in the day, the C-E-L and traction control indicator came on with the cruise control lights blinking. If you drive the vehicle in this condition, it goes into limp mode and fuel consumption higher.

Brought it to M.I. casa, they cleaned the throttle body. That cured the problem.

First time to encounter a vehicle that needed throttle body cleaning at this age and mileage.

2012 Forester SH 2.0 XS. 2.0 FB20

**variable** · July 14th, 2016 11:31 AM

Originally Posted by number001

Did the check-light come on?

At only 7,0xx kms, one morning I experienced rough/weak idle. Idle was around 800-900 rpm instead of the usual 1100 rpm. But with noticeable vibration. Later in the day, the C-E-L and traction control indicator came on with the cruise control lights blinking. If you drive the vehicle in this condition, it goes into limp mode and fuel consumption higher.

Brought it to M.I. casa, they cleaned the throttle body. That cured the problem.

First time to encounter a vehicle that needed throttle body cleaning at this age and mileage.

2012 Forester SH 2.0 XS. 2.0 FB20

Nope, the CEL did not turn on.

On one hand, I'm glad to know that other people have noticed it too, but on the other hand, I'm a bit more wary about the build quality.

Did the casa charge the cleaning of the throttle body to the warranty?

**number001** · July 14th, 2016 10:57 PM

Originally Posted by variable

Did the casa charge the cleaning of the throttle body to the warranty?

Yes they did. BTW, its out of warranty already.

But you are very correct about the concern regarding the build quality. Lets say its not that great (at least for my unit). In fact, I never encountered these kind of problems with other japanese brands that are made in Thailnd. Anyway....

**variable** · July 15th, 2016 11:48 AM

Originally Posted by number001

Yes they did. BTW, its out of warranty already.

But you are very correct about the concern regarding the build quality. Lets say its not that great (at least for my unit). In fact, I never encountered these kind of problems with other japanese brands that are made in Thailnd. Anyway....

Thanks for the replies, guys.

I guess the next question really is: are the fluctuating RPMs bad for the engine or the car in the long run?

**Egan101** · July 15th, 2016 03:38 PM

Fellow XT owners, what oil does Motor Image use on the FA20DIT? I heard from Subaru BGC folks that you can bring your own motor oil in time for your scheduled oil change. What would be the best options available? Thanks in advance.

**variable** · July 14th, 2016 11:34 AM

Originally Posted by dreamur

Could it be the compressor?

Sent from my SM-N910C using Tapatalk

It's possible. I'll try idling without the A/C on and see if the fluctuations happen.

**Egan101** · July 14th, 2016 11:40 AM

No variation in idle rpm speed on my XT. The normal idle rpm speed is between 700-800rpm. from a cold start, it starts out at around 1500 rpm then gradually goes down to around 1000 rpm when the blue cold temperature light turns off.

**MR_BIG18** · July 14th, 2016 06:35 PM

Originally Posted by Egan101

No variation in idle rpm speed on my XT. The normal idle rpm speed is between 700-800rpm. from a cold start, it starts out at around 1500 rpm then gradually goes down to around 1000 rpm when the blue cold temperature light turns off.

Same here...