2003 Ford Ranger How do I check for a vacuum leak

Tiny
CYBERK30
  • MEMBER
  • 2003 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 155,000 MILES
I am missfiring in cylinder 6. I have replaced my spark plugs twice and replaced the wire's. My engine light is on. I took it to Autozone and they told that cylinder 6 is missfiring. They said it could be a vacuum leak. It idles rough. How do I check for a vacuum leak.
Friday, April 25th, 2008 AT 11:46 AM

2 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
A very simple way to do it is, get a can of brake clean, and gently mist it around all of the intake manifoled and vacuum hoses. If the idle changes or wants to conk off then you have a leak in that area.
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Friday, April 25th, 2008 AT 2:47 PM
Tiny
CYBERK30
  • MEMBER
  • 2 POSTS
Thanks. I'll give that a try.
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Friday, April 25th, 2008 AT 4:02 PM

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