I have never had any luck in a car getting these out with heat unless I had a Oxy torch to use, and even then you need to use foil to keep stuff from catching fire.
I find that a big flat nose tapered punch that is just small enough to fit in the square and a good size ball peen hammer is the way to go.
6 to 8 hard it’s will distort the plug enough to jar the threads free and then they come out.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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