Gap and Change spark plugs in 98 Monte

I have a 98 Monte 3.1. Anyone know what the plugs should be gapped to and whats the best way to get at the rear plugs.

Unbolt the dog bone front upper mounts and rock the engine forward, use one of the bolts thru the lt bracket access hole to hold the engine in that position. Gap is .060, check your emissions label or owners' manual.. Use oe type AC plats or iridiums.

i bought plugs for my 98 lumina 3.1 yesterday and spoke to bosch today. they said torque =- 12 to 15 lb.

bosch platinum 6241 .

Bosch platinums are not a good choice. Research the forums and you will see where they don't play well in GM engines.

bosch platinum 6241 .

I foresee a P030X code in your future:uhoh:

Quality on those puppies went away years ago.

Bosch platinums are not a good choice. Research the forums and you will see where they don't play well in GM engines.i,ll definitely return them . i got enough bad stuff happening already without inviting more. the advice is appreciated.

No problem. Stick with AC-Delco or Autolite Double Platinums. Excellent quality and longevity.

No problem. Stick with AC-Delco or Autolite Double Platinums. Excellent quality and longevity.rich did you get the pm i sent to you about my lumina problem ?

No I didn't James, resend please.