1998 Acura CL 98 acura clv6 3.0

1998 ACURA CL
207,000 MILES • 6 CYL • AWD • AUTOMATIC
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KAYLACHAVOUS
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My acura has 207000 miles on it. I notice when i crank it up its idled kinda high like around 1200rpm and i have to wait like 3-5 mins before it calms down to may 1000-800rpm. and when i go to shift in reverse it shifts hard. Also when i come to a stop my Rpms gauge rises up and come back down and I feel a slight pull before i stop. What could be going on
Oct 6, 2010 at 12:41 PM
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KHLOW2008
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Hi kaylachavous,

For cold starting, the rpm is increased and the symptoms described are correct. However the idling speed should go down to 650 - 750 rpm after warming up.

The engine is surging due to the idling speed being higher than expected.

Possible causes are :
1. Idling speed adjusted too high.
2. Clogged coolant hoses to the IAC or lack of coolant in system.
3. Faulty IAC.
Oct 6, 2010 at 3:28 PM