large vacuum leak

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Sep 27, 2011 | 07:45 PM

chzhead4

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large vacuum leak

I have a 2003 jaguar x-type 3.0. My check engine light came on. I had the code checked and it came back as a large vacuum leak...where should I check for this. Unfortunately, there is no dealership nearby, so I am trying to fix the problem myself...thanks!

Sep 27, 2011 | 09:23 PM

mohrd

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Joined: Jun 2008

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From: Sylvan Lake & Playa del Carmen Mexico

Search the X-type section under vacuum leak or 0171 and 0174 codes or lean codes or PCV hose or IMT valves or brake boost hose. Those are your 3 likely culprits. Change them all if they haven't been done. On an '03 if your PVC hose isn't the new reinforced one, you will find a split on the underside. If your brake boost hose has the white check valve, it is the original and prone to deterioration. Undo an IMT valve and if the gasket isn't green, you'll need to get them. 99% it will be one or all of the three.