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Stalling at a red light or stop sign

Tiny
ZACKPIERSON81
  • MEMBER
  • 2007 SUBARU FORESTER
  • 2.5L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 228,000 MILES
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.
Wednesday, January 22nd, 2020 AT 8:32 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
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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Wednesday, January 22nd, 2020 AT 4:50 PM

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