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Old 06-23-2011, 02:01 PM
djt88ranger djt88ranger is offline
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Default high idle once engine is operating temp

The idle is a bit rough when it first cranks up. After letting it run fe wmins. it levels out. Does fine until it get to the top of the operating temp and then it goes crazy..between 2500 and 3000. I can turn on A/C and that slows it down some, but the freon is low so I don't run it that much. Changed IAC. Air filter, checked for vacuum leaks..
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1988 Ranger.. 2.3 FI.. 5-speed
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Old 06-25-2011, 04:55 PM
ddunfee ddunfee is offline
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Default Re: high idle once engine is operating temp

When this happened to mine I pulled the wire to the temp sensor and it settled down, replaced temp sensor and all is OK now. This temp sensor is the one with two wires
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Old 06-27-2011, 08:17 AM
djt88ranger djt88ranger is offline
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Default Re: high idle once engine is operating temp

Where would this be located? I was told on the block, drivers side, but I don't think that is the one I need.
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Old 06-28-2011, 07:10 AM
ddunfee ddunfee is offline
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Default Re: high idle once engine is operating temp

Not sure on a '88, mine is a 95 and it was right next to the thermostat
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