jefflock said The heat will loosen up the rust. Then shocking it with cold water will help loosen it up by shrinking it. I work maintenance in a salt plant. We deal with lots of severely rusted up fasteners every day. Click to expand...
demonmike70 said hey if has a cracked exhaust manifold new o2 sensor will not work correctly due to exhaust leaking out before sensor can read correct conten of o2 Click to expand...