06 equinox rough idle at startup only

[[email protected]]

startup idle rough for 15-20 seconds.....then idles and runs fine.....no CEL

 

[prheaume]

I'll go with the spark plug wires first... simple test.. spray them with water at night and check for sparks

 

[[email protected]]

06 rough idle

ty...I did change plug wires...spark plug...additive to clean injectors...better grade of fuel....

 

[prheaume]

what brand of wire you installed? I heard some stories about GM and aftermarket wires. And OEM wires as well.

In Canada, at the dealership, we have delco and delphi wires. delco are problematics, delphi a little more expensive but they kick ass!

 

[[email protected]]

they used delco wires....it ran well for a day and a half...then the roughness started...

 

[prheaume]

ask for delphi's wire... should solve the problem