Have a Hino dutro 2006 hi grade .The clutch and brake pedals get hard to depress overnight. Is there a problem.The pressure releases once the engine starts
Hi I'm Wayne, I will help you with this,
This sounds to me that your loosing vacuum over night, and that explains the hard pedal, when you start engine, vacuum pump rebuilds the tank, and all works normal
It's very,very hard to find a vacuum leak, best thing to do is tighten all fittings on tank and lines
How do I fix the problem and is it damaging any thing . Paul
Where approx is the vacuum tank
Are you still there Wayne ?
Vacuum Tank is normally on the frame rail of truck, some time times Curb side........
Will it hurt any thing.....NO.....just have to wait and rebuild Vacuum
Fix the problem, Like I said, finding a Vacuum leak Very hard, Air leak easy, soap bubbles. can not do that with this