spank.806

i have a 2001xlt every so often my sparkplugs tend to loosen making the truck run rough. dose antone know what causes this to happen. after tightening the truck runs fine.

thanks

pickupsrule

If someone put oil or anti-sieze on the plugs or threads or oil got into the threads it will cause them not to torque properly and they will work their way loose. I would clean the threads and plugs with a gentle spray of automotive fuel cleaner such as gumout throttle body cleaner (don't over do it, just a little bit) to get rid of any oil. That might help. Unfortunately the cylinder plug threads might be stripped ie: the now infamous plug blowout on the V8's which is a known manufacturing defect. Also use a torque wrench to make sure the plugs are tightened to specifications.
Other than those, I have no ideas.
Good luck.

bobkyle2

yah...most people add way to much anti seize... or none at all... i would clean the threads really well and get a good set of plugs add a very thin coat of anti seize... torque plugs to 7-14ft/lbs..i beleive