Hydroboost issue

[Kraftwork69]

Yes, the rear check valves were removed when I I installed the new brakes and new 9in rear end. I also just installed all new lines with a new power steering pump as well. I thought that may have been the issue. I actually used a Y AN connector instead of a T connector.

From what I've read I feel your "Y" is way too close to the Hydroboost Unit. Return fluid from the steering gear could be entering the Hydroboost.Looks like if a "Y" or "T" adapter is to be used it should be as close to the power steering reservoir as possible. For the best installation, putting it directly back into the reservoir is widely recommended. I disassembled the pump assembly, drilled a hole for a bulkhead fitting, and dumped it right back into the reservoir. Wasn't hard just gotta make sure everything is perfectly clean prior to reassembly.