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.
Heat can damage other areas of the car
( z1 possible :ARG1 ( z2 damage :ARG0 ( z3 heat ) :ARG1 ( z4 area :mod ( z5 car ) :mod ( z6 other ) ) ) )