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idles too fast ?

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Old 12-10-2016, 09:10 AM
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Year: 98
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Engine: 6 cyl.
Default idles too fast ?
just started today, start it idle jumps to 1800 rpm , within 15 seconds drops to 1500 & stays there ? whats up , any ideas. 98, 4.0 w/ auto trans, engine is stock w/ 140 k miles. thx
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Old 12-10-2016, 09:46 AM
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Check for vacuum leaks.
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Old 12-10-2016, 12:35 PM
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Check TPS.
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Old 12-10-2016, 12:37 PM
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Check the TPS.
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Old 12-10-2016, 12:38 PM
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Check your TPS. That's what mind did & TPS was the fix.
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Old 12-10-2016, 01:20 PM
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Originally Posted by z28
Check TPS.
Originally Posted by z28
Check the TPS.
Originally Posted by z28
Check your TPS. That's what mind did & TPS was the fix.
You may want to check your TPS.
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Old 12-11-2016, 09:47 AM
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Originally Posted by CurrySoSpicy
You may want to check your TPS.
LOL.

I wonder if the OP ever cleaned his throttle body and IAC:
http://cruiser54.com/?p=60
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