The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-59 Power Brake Oddity

**1project2many** · 10-17-2020, 02:24 PM

This problem intrigues me. I expect you will find the issue is in the booster. I'm curious though. Does the pedal have plenty of assist if you press it after the engine is off? How about if you wait for a period of time? An hour? Overnight?

What happens if you shut the engine off with the brake pedal released then press and release the pedal shortly after the engine is off? Does the pedal return or hang up on release?

Was there an OE application for this booster and master?

10-17-2020, 02:24 PM	#9
1project2many Senior Member Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,217	Re: Power Brake Oddity This problem intrigues me. I expect you will find the issue is in the booster. I'm curious though. Does the pedal have plenty of assist if you press it after the engine is off? How about if you wait for a period of time? An hour? Overnight? What happens if you shut the engine off with the brake pedal released then press and release the pedal shortly after the engine is off? Does the pedal return or hang up on release? Was there an OE application for this booster and master?