R Russell Gravel New member Feb 18, 2011 #1 my check engine light came on and i know it is because i need a tune up. What i don't know is what else i need besides spark plugs. I have a 2001 jeep grand Cherokee with a v6 4.0L engine. Thanks!
my check engine light came on and i know it is because i need a tune up. What i don't know is what else i need besides spark plugs. I have a 2001 jeep grand Cherokee with a v6 4.0L engine. Thanks!