EVAP connecting hose to PCV valve Collapse?

This problem is very common on many car models.
In this case the hose connecting between Evaporative Emission Canister Purge Solenoid Valve to the PCV valve PURGES.
Basically in most of cases replacing the hose resolves the problem,but in some cases the hose purges again n again still after replacing.Also car surge is noticed too.
If the hose collapses then it is not vacuum rated and it will not work. YOu need proper vacuum line.
Take care when you put the lines back on, you don't mix them up? Do it one for one swap .Because if you mix it up the system will pull fuel vapor all the time from the tank .
Also in some cases the evap sol valve and the pcv valve needs to be replaced/.

This will help.Thanks.

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