intake manifold gasket leak Mazda B3000

2000 MAZDA B3000
150,000 MILES
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ERICB3000
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  • 3 POSTS
rough idle shaking engine cylinder #4 misfire have has new spark plugs and wires new coil pack new EGR valve and used sea foam fuel injector cleaner
Dec 24, 2011 at 10:58 PM
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ERICB3000
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think it is a bad gasket on intake manifold would that cause these problems

Dec 24, 2011 at 10:59 PM
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RIVERMIKERAT
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Yes, it could.
Dec 24, 2011 at 11:06 PM
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ERICB3000
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I have tried spraying brake cleaner and wd-40 around the manifold and gasket and could not detect a leak but i know the gasket is broken in half
Dec 24, 2011 at 11:24 PM
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KHLOW2008
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If only one cylinder is misfiring, the possibility of a bad manifold gasket is not high, unless the leak is at the intake port of the cylinder.

Have you checked the compression?
Dec 25, 2011 at 12:00 AM
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RIVERMIKERAT
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Hey KH, Happy Holiday, man.

The user said he knows the gasket is broken in half.

EricB: Gap properly set on the new plugs? Like my colleague said, a compression test would be a good idea.
Dec 25, 2011 at 12:11 AM
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KHLOW2008
  • ✓Experienced Mechanic
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Merry Christmas , Mike.
Dec 25, 2011 at 8:47 AM
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