The proportioning valve balances the front to rear brakes. Under hard to moderate braking the car will nose dive or the rear brakes will lock if the valve is incorrect. If you feel even braking front to rear, your are fine.
Some times the whole gauge cluster needs to be grounded. Simply connect a wire from a screw in the cluster to a solid place on the dash or firewall. Also check the ground on the sending unit at the tank. From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, July 15, 2010 7:11 PM To: [email protected] Subject: Re: [Chevelle-list] brakes/fuel gauge In a message dated 7/13/2010 9:30:57 PM Central Daylight Time, [email protected] writes: heck the ground to the dash for the gauge. Sounds like your booster has failed, do you have a check valve in the booster? Run the car and pull the valve out it should be under vacuum. Jim Well, Kim was right, my booster was jusk, replaced it and now every thing seems ok, i did not swap the porportioning valve over from the donor car, should i do that? (this is the block on the framewhere all the line run correct?) i assumed the porportioning valve was the round valve that i swapped over that was right under the master cyl that was about 3-4" long. also i checked the fuel gauge connections at the dash and in the back, all seems ok, when i ground the wire in the back the gauge drops down to "E" so what does this mean? a bad sender?
