RPM Fluctuation at idle

RighteousRoost

New member
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2010 Enclave CXL
2010 CXL...Needle bounces under 1k at idle, no "check engine"... no matter parked or at stoplight...will plug and coil pack change fix this?
 

MelsRegal

Full Member
Staff member
5,085
782
113
Regal GS 2017
How many miles on the plugs?
Changing things with no check engine light as a guide may be a waste of money.
 
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