how do you change a brake booster valve to a 1998 Pontiac transport
Sounds like it could be a vacuum leak at the power brake booster Check the lines to booster and the check valve at the booster Could be a defective brake booster also
Perhaps a vacuum leak check power brake booster for leak and also inlet check valve on booster
Might be a vacuum leak Also check the check valve on the power brake booster
Perhaps a vacuum leak check power brake booster and check valve at booster
Yes, it is typically in the fitting on the booster where the vacuum line is attached.
Perhaps a vacuum leak at the power brake booster or the check valve on the booster.
The cause of hard brake pedal is malfunctioning brake booster. Check the hose from the intake manifold going to the brake booster for cracks or leakage, replace if necessary. Check the one way valve located in the middle of that hose, make sure the valve opens when you put pressure on one port.. If all those mentioned are ok, the booster itself needs to be replaced....
check vaccuum hose for blockage . also check egr valve if both are good, replace vaccuum booster
Could be a vacuum leak Could be a defective power brake booster Could be a bad check valve on booster
Check for a vacuum leak Check the check valve on the power brake booster
The check valve in the vacuum supply hose is faulty.The seal between the check valve and the booster is faulty.