Cincinnati Guy
Registered User
Yup just loose nuts....
When i onl yhad 6 autolite plugs in mine it would heat 5 seconds still enough to fire my engine, after i put all 8 autolites in it, then it heated anywere from 8-20 seconds when real cold, always fired, autolite1108's never burned out on mehey they were free
maybe that was a good set of plugs 
that's great news.... I have a few loose nuts on my truck as well - biggest one is behind the steering wheel...
