Hey guys.

Ok well, I took out the spark plug wires and spark plugs, removed the proper fuse. Screwed on the end of the compression tester, did the cranks to get the psi on cylinder one and then went to unscrew the compression tester. One problem, it doesnt wanna unscrew! I only screwed it on hand tight, but now its just about impossible to unscrew off!

Anyone have any advice?

Thanks

 

Did you cross thread it maybe? I never had this happen to me before I guess keep trying to unscrew it. Maybe release the pressure if you didn't already.