I have a 02 chevy monte carlo LS 3.4 and was wondering if anybody in here has used a different type of spark plug inside their monte carlo. I purchased bosch IR 4 fusion spark plugs. I want to know if it will mess up my motor or anything else. If anyone has used this type of plug or any other type of plug inside 01-05 chevy monte carlo please give me some feedback. It would be greatly appreciated. Thank you.

Jimmy

 

Jimmy welcome to the MCF.

 

My experience with BOSCH spark plugs is that they are JUNK! I've used them first hand in the 3100/3400/3800 engines (and know others that did the same). They either are crap out of box OR about 6 months later you begin having bad mis-fires and end up replacing them.
I try to stick with AC Delcos (I just recently used NGK's in my wife's Impala only to find the FACTORY installed AC Delco's also had NGK branding on them).

Personally, I would remove the BOSCH plugs you put in and go Delcos. For almost ALL uses of the car, Delco's will do the best for you.

 

i dont like bosch either, welcome to mcf!

 

Welcome to the Forum! I'd say ACDelco as well.

 

Stock for ignition parts is always the best idea.

 

I have an 05 3800 sc, recommend OE iridium Delco plugs or other Delco plugs? ?

 

U remember I had a bosh o2 sensor, that crapped out on me less than a year, anything engine I'd stick with delco

 

Mine did the same on my 02, Waste of money for sure man

 

Welcome, and like most others have stated go with OE ACDelco.