Why does my Subaru stall at low idle?

Anyways, the car no longer stalls, and the rpms don’t sporadically dip when at an idle. The idle itself is a little rough, but i’m sure theres other reasons for that. Just wanted to share my experience since it seems a little more common then I thought.

Why does my Subaru Impreza stall at stop lights?

Usually at stop lights or when i would let off the gas and the car would try to find an idle. When it did idle, it idled low and was unstable often dipping to just a couple hundred RPM. I took the advice of Zecher here and cleaned out the TB.

What to do about low idle in Subaru Impreza GC8?

I simply removed all of the plastic intake bits leading up to the TB, held open the butterfly, and used a soft rag to scrub the TB walls where the butterfly lays at rest. I couldn’t believe how much black carbon goo came out – and the car only has 93,000 miles on it!

What causes a Subaru Outback to run rough at idle?

These packs are fired by the engines computer at exactly the right time to provide the optimal ignition timing. If a coil pack goes bad, it’ll cause a misfire and rough idle condition. Really, your Outback will be running rougher at any RPM, but a misfire will be most pronounced at idle.

Why does my Subaru Impreza stall at low rpm?

So, I’ve just barely installed new plugs (OEM) and new wiring (at the same time I installed a new timing kit, I just hit 100,000 miles) – the hesitation is gone and the power is back, but a new problem has emerged: The car idles at an EXTREMELY low RPM when started (less than 500) and barely stays alive.

What’s the idle speed on a Subaru Impreza GC8?

We cleaned that and the air box out and everything is running much more smoothly now, a steady idle at 750 RPM’s. Thanks again for your response, shaz. Not a problem, cleaning anything completely spaced my mind.

What causes an Audi A4 to idle rough?

A super lean running engine will often idle rough. The fuel injection systems job is to atomize the fuel into fine mist. If a fuel injector has an issue with this process, it will either let too much or too little fuel into the combustion chamber relative to the amount of air.

What causes a Subaru Impreza GC8 to stall?

All the sensors were appearing fine, we pulled out the throttle body and it was pretty gunked up. We cleaned that and the air box out and everything is running much more smoothly now, a steady idle at 750 RPM’s. Thanks again for your response, shaz. Not a problem, cleaning anything completely spaced my mind. Glad you figured it out though.

What to do if your car stalls while idle?

On the other hand, if the engine gets stalled while your vehicle speed is idle, you cannot steer it to the roadside. At that time, let’s turn on the hazard light and call the roadside assistance or the police. It doesn’t absolutely get out of your vehicle. Don’t push your car while you are on a busy road.

What causes a Subaru Outback engine to shut down?

(You may have to both drive a clone to compare AND have others experience your phenomena to rule out naivety wrt to CVT sound correlation weirdness. YET, Subie’s modern CVT is especially smooth and almost intuitive, so you might indeed have an out-of-box failure (bad torque converter or its brain) that will get swapped out.

Can a single cyl cause an engine to stall?

One cyl isn’t gonna cause the engine to stall; it’s barely noticeable to most ppl (just as you indicate with your poor mans injector test; you should notice a difference in idle but it won’t stall because it’s only one cyl) The whole engine is cutting out; it’s not like one missfire…

Why does my Subarus engine keep cutting out?

Had the complete motor redone 2 months ago, both heads redone, new head gaskets, new gasket set on the entire motor, new water pump, new radiator, spent heaps on the motor, and still have the cutting out issue.. Hello everyone, new here and new to Subarus, need some advice. my 97 Legacy outback 187,000m, I think it is the 2.5 Litre. quite running,

When does a Subaru boxer engine start to have problems?

Consumer Reports says the older Subaru models using this engine will typically start to have head gasket issues around 90,000 to 150,000 miles. The reason the Boxer engine seems to be more prone to have this problem is because of the engine design.

Why do head gaskets fail on some Subaru models?

Why do head gaskets fail on some Subaru models? The Subaru EJ25 2.5-liter Boxer is the engine that has experienced the most problems for the Japanese automaker. The gasket material they used in this engine was unreliable and Subaru attempted to correct the issue in 1999 with an updated multilayered metal shim gasket.

What does it mean when your car Idles smooth?

Smooth idling indicates that your engine’s fuel and air are mixing just right. What is rough idling? If your vehicle’s idle is rough, possibly rising and falling, or having difficulty maintaining a steady rate of rotation, you may have a problem that needs fixing.

What to do when your car won’t idle properly?

Your engine computer notices these tiny, gradual changes and compensates for them. As a driver, you don’t notice these small changes, but they keep your vehicle idling smoothly as the miles pile up. By going back to the default settings, your engine can no longer idle properly. You have a problem. Get it diagnosed by a professional

What to do when your car won’t idle?

Start it up and let it sit about 10 minutes at idle so it can relearn idle. If it still doesn’t work you will probably have to clean the throttle blade on the throttle body cause it is probably gunked up and won’t allow the blade to come to full “seat” position letting it relearn the idle.

How often do you change the idle on a Subaru?

Wait 10-15 seconds so the electronic throttle body or IACV has time to go to the factory programmed home position. 6) Every 20 seconds or so the idle will be adjusted up and down as the ECU tries to adjust it towards a stoichiometric fuel / air mix.

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