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Impala While undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.

2014 Chevrolet Impala
Includes: Bel-air
Platform: B-body & W-body

2002 Impala Ls RPM

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Old November 26th, 2017, 1:48 PM
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Default 2002 Impala Ls RPM
My car has a rough idle in park. Tach fluctuates slightly. What is the normal RPM for a warmed up engine. Should I change my IAC?
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Old November 27th, 2017, 12:25 AM
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Originally Posted by Steverenio
My car has a rough idle in park. Tach fluctuates slightly. What is the normal RPM for a warmed up engine. Should I change my IAC?
Wouldn't hurt, but it could be lots of things. Low compression, bad injectors, ect. How many miles are on this vehicle?
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Old November 27th, 2017, 6:32 PM
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Originally Posted by oilcanhenry
wouldn't hurt, but it could be lots of things. Low compression, bad injectors, ect. How many miles are on this vehicle?
139000
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Old November 28th, 2017, 11:06 AM
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Also what is the maintenance record? How are the plugs, wires, fuel filer,.... etc?
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Old November 28th, 2017, 6:34 PM
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Default Rough idle
Already changed the fuel filter, ordered an IAC and will be changing my plugs and wires
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