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> Random Misfires Only When It Warms Up... Why?
hawkeye217
post Sep 6 2008, 06:48 AM
Post #1


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Group: Members
Posts: 4
Joined: 14-August 08
Member No.: 62,725
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Location: USA
Drives: 2000 Galant DE
My 4G64 2000 Galant misfires only when it warms up. The first few minutes of driving everything is perfect. Then about 10 minutes into the drive, when the engine temperature is about normal, it begins to misfire and just get worse and worse.

I just replaced all the plugs and wires and the coils, so I can''t imagine its an ignition issue because everything seems totally fine when it''s cold or warming up.

I removed the exhaust before the cat converter thinking the engine might not be able to breathe, and it still misfired.

Any ideas what might be causing it? The temperature specific aspect of it is what''s so confusing to me...
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