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.
There are other things that can damage a hose
( z1 possible :ARG1 ( z2 damage :ARG0 ( z3 thing :mod ( z4 other ) ) :ARG1 ( z5 hose ) ) )