Question about 2000 Ford Focus
Sounds like a vacuum leak. Vacuum leaks can cause backfires. Check all your vacuum hoses, some of these can appear to be connected, but can have a crack in the top. If you see this, replace the hose-most do not have a hose clamp to secure them.
Posted on Jun 29, 2009
There is a pcv hose at the backside of the engine that hooks into intake manifold. They will fall apart at the 90 degree bend and will need to be replaced. You will have to get this from a dealer. It may make the check engine light come on also. This happened to my car. You can reset engine light by removing battery cable for about thirty minutes.
Posted on Jul 01, 2009
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Posted on Jan 02, 2017
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