Engine is loping at idle

2001 MAZDA 626
161,000 MILES
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BNWG23
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  • 1 POST
I have a V-6 2.5. I recently discovered that i had a vacuum leak after trying to discover why my engine was loping at idle. I discovered that the check valve and one of the vacuum chambers underneath the intake manifold had both had a nipple busted off them. i ran a new vacuum line bypassing the vacuum chambers and it is still loping at idle. is this because i'm bypassing the chambers? How important are these chambers?
Feb 12, 2012 at 2:01 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
You need to hook the vacuum line back up to the chambers
Feb 12, 2012 at 2:06 AM
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