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High idle in park

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Old 05-02-2015, 11:15 AM
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Default High idle in park

My 89 Cherokee Laredo idles at 1500 rpms when I put it in park. I replaced my map sensor, tps, iac, egr valve, O2 sensor, spark plugs, fuel injectors, and I can't find any leaks. Any ideas on what could be causing the high idle???? Thanks!
Old 05-02-2015, 12:02 PM
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Originally Posted by Scrawnson89xj
My 89 Cherokee Laredo idles at 1500 rpms when I put it in park. I replaced my map sensor, tps, iac, egr valve, O2 sensor, spark plugs, fuel injectors, and I can't find any leaks. Any ideas on what could be causing the high idle???? Thanks!
I would think TPS or vacuum leak, below is a link to a similar post, skip down to the last post at the bottom. That guy had eliminated vac leaks, like you I guess from your leak comment. Throw a tester on the TPS.

https://www.cherokeeforum.com/f2/high-idle-park-35497/
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