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Jim
Grant has been working in the automotive industry for over twenty
years. In addition, Jim is an ASE Master Technician with advanced
L/1 certification. He works as manager and technician in his
family's automotive business in New Hampshire. He writes weekly
automotive consumer columns and is editor of an automotive newsletter
that is circulated throughout North America. |
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Jim Grant's Tech Tips
95
Chevy Impala, Cold Exhaust Leaks
Q: I have a '95 Impala SS. It sounds like it
has an exhaust leak, when the engine is first started. After driving for
about 10 minutes or so it goes away. Can you help?
A: If
it sounds like an exhaust leak, it probably is. While the engine is cold,
closely inspect the exhaust manifolds primarily near the rear of the engine;
that's where the problems most commonly are found. Usually you'll find
that a bolt has loosened up allowing the exhaust manifold to pull away
from the engine. As the engine heats up the exhaust manifold expands closing
the exhaust leak. I would recommend having the problem corrected before
it gets worse or requires additional parts and labor.
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