Motorcraft YG429 Vacuum Control Valve

Worked perfectly

Found slow vacuum leak while in cruse control. Replaced check valve and trouble cleared. Very happy with new check valve.

Thought the prob. was in the hub but i tryd this part and workd great, no more grinding noise

Replaced the original control valve and works as described. If you are shopping for these, you are probably searching for the 'end all' to a sound you are hearing from the front end. This is to help fix the suction issues of the front wheel hubs for 4 wheel drive if the ($35) Ford solenoid is working fine. Now, with that said, if you replace both as I did, and the sound still persist intermittently. It may NOT be the 4 wheel drive suction...Let me explain. The bottom of the truck is like a tuning fork. At the right RPMs, it can cause a rattle for just seconds at a time due to possible loose skid plates and heat plates. I heard the sound from accelerating from a stop sign, or slowly driving uphill, especially pulling a trailer. The sound of a quick rattle or growl. The sound was near the front end, at the cross pipe of the exhaust running parallel to front bumper. There is a heat plate connected on top of the pipe. It is welded on one side, and a hose clamp is used on the other side of a foot long plate to attach it to the pipe. The hose clamp was missing...rusted off. That was it! I put a new hose clamp around the exhaust pipes heat plate and tightened down the other end. Whisper quiet accelerations from stop and driving uphill now. Still, if the vehicle's issue is a suction problem, this important $10 part is the answer to many! There is a tiny nickel piece inside that could get stuck in the open or close position over the years that causes the hubs to partially engage if not working properly. Good luck!

direct replacement hope it fixes issue