Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
my name is Gary
i am sorry for the long wait
only 75 to 90 psi on all the cylinders are you sure ?
can you put a cap full or engine oil in a cylinder and do a compression test on that cylinder you put the cap full of engine oil into and will the compression still be 70 to 90 or will it rise up ?