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Extremely high rpm's in neutral

The engine runs fine, revs and lowers rpms with no problem. The check engine light is constantly on. I use it for a while and when i reach my destination and begin lowering my speed, no problem until that point. When i put it in neutral then the rpms sore up to 3,500 and i have to turn the engine off for a while. After it cools down for 30 minutes or so, back to normal operation. And it does this every single time i run it for a while. What could it be? hat's causing this problem? Please give me light. Thanks.

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Maybe the idle speed needs to be decreased, or check for engine overheating since you said that this happens after you have had the engine on for a while, this too can hcause strange rpms.

Good Luck!

Posted on Jun 23, 2009

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