Stalling at a red light or stop sign

2007 SUBARU FORESTER
228,000 MILES • 2.5L • 4 CYL • 4WD • AUTOMATIC
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ZACKPIERSON81
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I have the vehicle listed above that i just picked up. I was told the head gaskets were replaced about 6,000 miles ago. if i press the brake down at a light and hold it until the lights green the car will stall.
Jan 22, 2020 at 8:32 AM
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KASEKENNY
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Does the engine run poorly at all?

If holding the brakes down causes the engine to stall it is either a vacuum leak or the IAC is failing. It could be other things but we need to start here. I doubt it is related to the head gaskets but we need to check for a vacuum leak as maybe a line came off or is leaking.

Let's start with these things and go from there.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

https://www.2carpros.com/articles/idle-air-control-valve-service
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Jan 22, 2020 at 4:50 PM