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Q: Is there a proper way to seat boots to plug / coil pack? Other possible problems? on 2002 Isuzu Trooper

stalls,rough idle, spark plugs wet, engine light (multple cylinder misfire), idle speed variation.
Replaced air filter, pcv cleaned, plugs, wire boots,oxygen sensors (upstream-due to lean condition,low volts), & fuel filter
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I had similar problems and had to replace the intake manifold gasket. The problems have stopped since. Hope this information helps.
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