How to Check Engine Vacuum Hoses
Check each hose for bulges and swelling., Examine the hoses for tiny cracks and scratches.
Step-by-Step Guide
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Step 1: 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.
A swollen hose that is cracked and hard is often caused by heat damage.
These hoses can be too close to heat sources under the hood or it may be the result of overheating.
Bulging hoses can also be caused by electrochemical degradation when there's a coolant leak dripping onto hoses.
Sometimes you can feel tiny cracks or weak spots when you squeeze a cool hose near one of the ends. -
Step 2: Examine the hoses for tiny cracks and scratches.
Small parallel cracks in the cover of a hose can be ozone damage.
Scratches and other irregular injuries to the hoses can be caused by hoses rubbing against a moving part of the engine.
Detailed Guide
If a hose feels soft or spongy when you touch it, this can indicate damage caused by your car's oil.
A swollen hose that is cracked and hard is often caused by heat damage.
These hoses can be too close to heat sources under the hood or it may be the result of overheating.
Bulging hoses can also be caused by electrochemical degradation when there's a coolant leak dripping onto hoses.
Sometimes you can feel tiny cracks or weak spots when you squeeze a cool hose near one of the ends.
Small parallel cracks in the cover of a hose can be ozone damage.
Scratches and other irregular injuries to the hoses can be caused by hoses rubbing against a moving part of the engine.
About the Author
Donna Tucker
Enthusiastic about teaching practical skills techniques through clear, step-by-step guides.
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