I just installed new AC plugs in my '90 2.5L Grand Am and now during
acceleration it hesitates and then backfires. I am 100% positive I did not
cross any wires and the plugs are properly gapped. I did not torque in the
plugs. Is this necessary, and if so, what should they be torqued in at?
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.