Bosch spark plugs

[Chris Hacker]

Hey all. Well my studdering problem continues. Custom Muffler says I need a tune up. However, I did a $450 tune up less than 6 months ago with top of the line everything. My only guess is that my plugs, which are Bosch Platinum 2, are acting up for my car. I've read where people have trouble with these. I pulled the three out on the right side and they were all pretty charred and black at the end, a friend said not too bad but that may be it. Any clues on those plugs. Car is 94 Cam. V-6. Thanks for any help

[hockeyman]

You can put the best plugs in the world in your engine, and if there is something wrong internally, they will still foul up on you. If they are charred, take a look at the coil pack(s), clean your intake, check your injectors, and fill the tank with premium gas.

-Marc

[Ian]

i have Platnium 2's, and they are fine. its the plat. 4's that suck.

[cassie]

yep. runnin plat 2 also

[ka50]

I'm about to put AC Delco Rapidfires. I heard too many problems with bosch plugs, so I'm not gonna put those in.