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-   -   2002 Impala Ls RPM (https://chevroletforum.com/forum/impala-14/2002-impala-ls-rpm-87203/)

Steverenio November 26th, 2017 1:48 PM
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?

oilcanhenry November 27th, 2017 12:25 AM
Originally Posted by Steverenio (Post 348234)
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?

Steverenio November 27th, 2017 6:32 PM
Originally Posted by oilcanhenry (Post 348254)
wouldn't hurt, but it could be lots of things. Low compression, bad injectors, ect. How many miles are on this vehicle?
139000

Frank3 November 28th, 2017 11:06 AM
Also what is the maintenance record? How are the plugs, wires, fuel filer,.... etc?

Steverenio November 28th, 2017 6:34 PM
Rough idle
 
Already changed the fuel filter, ordered an IAC and will be changing my plugs and wires


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