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Idles fine then shuts off right when it starts to warm up

Tiny
MATTHEW NELSON2
  • MEMBER
  • 1985 SUBARU GL
  • 1.8L
  • 4 CYL
  • 4WD
  • MANUAL
  • 200,000 MILES
It was not getting fuel and I replaced the fuel pump now it idles just fine maybe a little low but then shuts off as soon as it warms up to the exact bottom line of the temperature gauge. As if it is some kind of signal to something.
Wednesday, October 3rd, 2018 AT 7:20 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Hello,

It sounds like you have a vacuum leak. Here are two guides to help us get started finding and fixing the problem:

https://www.2carpros.com/articles/stall-at-idle

and

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

Please run down these guides and report back.

Cheers, Ken
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Saturday, October 6th, 2018 AT 3:37 PM

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