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Old 30 Jul 2013, 11:32 pm
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Default 1997 Honda Accord- Car has alot of problems, please help!?

I recently came into possession of a 1997 Honda Accord EXR w/ Manual Transmission. Overall the car is in fair condition, but is suffering from a couple mechanical problems. The car has an issue where it idles rough at 400-500 RPM after the engine warms up. I tried to clean the throttle body with TB cleaner, that has improved it so that it idles at 700-750 RPM, but as soon as the cooling fan for the radiator kicks in it goes back down to 400 RPM... and then stays there. Sometimes it jumps around between 400-750 RPM. Also there is a strong smell of raw gasoline coming from the exhaust, could it be a low compression or misfire issue? I pulled the spark plug wires and 1 has a bit of white crusty stuff, another one has a little bit of oil on it. I also found out recently that the previous owner Seafoamed the car.. I heard that stuff can really scew up an engine... do you think that could be the cause? Really worried about possible engine damage from driving it now.... What do you guys think is the problem? Will it be expensive to fix it? Thanks in advance.
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Old 30 Jul 2013, 11:49 pm
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The decrease in engine speed when the fan comes on is likely due to the additional electrical load the fan puts on the alternator. The raw gas smell might be from one of the cylinders not firing, perhaps due to a fouled plug. Try new plugs, with the correct gap.

I don't think the Seafoam made a difference, or harmed the car. It indicates the previous owner thought there was something wrong and tried an inexpensive fix.
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