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Shutting off after start, while idling and stopped, code P0300

Tiny
WSOWERS
  • MEMBER
  • 2005 VOLVO V50
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Car is shutting off when idling or stopped. Or when backing up or going forward car wants to shut off. I have to accelerate the gas a bunch to keep it from shutting off. Car does okay for the most part if I manual shift it the whole time I drive it. Stalls out less with manual shift.
All fluids are good. Ran codes got a po300 on a code tester. Where should I start?
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Thursday, March 8th, 2018 AT 11:31 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
Hello,

It sounds like you have an air intake tube that has fallen of or you have a large vacuum leak. Here are two guide to help us get started:

https://www.2carpros.com/articles/replace-an-air-intake-boot

and

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

Please let us know what you find.

Cheers, Ken

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Monday, March 12th, 2018 AT 1:20 PM
Tiny
WSOWERS
  • MEMBER
  • 2 POSTS
Hello Ken,
Thank you so much for your help! The oil breather tube was cracked. Replaced that, also replaced all five spark plugs. Found three bad coils and replaced them also. We are good to go! Thank you again!
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Saturday, March 17th, 2018 AT 10:20 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
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Monday, March 19th, 2018 AT 10:45 AM

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