So I had some spare time and thought that I might throw on a new set of wires and plugs ('91 4x4 V6 pickup). I was putting the last spark plug in when I noticed that it only went in three or so threads before becoming too tight. I messed with it for an hour or so before realizing that I didn't want to mess it up too bad.

I'm hoping I can fix it for a reasonable price, does anyone one have some suggestions?

It's Ironic, I put a whole new exhaust system as well as downey headers on a couple months ago and had nothing this bad, it's rather ridiculous.

Any help would be greatly appreciated

-k

 

-Do the threads on the spark plug look they've begun to get cross-threaded?

-Have you tried a different sparkplug in that particular port to see if its the sparkplug?

-Worst case scenario, get a tap and die set of the correct size and run it through the hole, maybe the threads just need to get cleaned out a bit.

Hope this helps!