How to check engine vacuum hoses<br>Check each hose for bulges and swelling. If a hose feels soft or spongy when you touch it, this can indicate damage caused by your car's oil. [substeps] A swollen hose that is cracked and hard is often caused by heat damage.
Your hose feels differently if there is damage to it.
( z1 feel :ARG1 ( z2 hose :poss ( z3 you ) ) :ARG2 ( z4 differ ) :condition ( z5 damage :ARG1 z2 ) )