Dorman 47076 Vacuum Storage Canister Compatible with Select Models

Work great for my application. Easy installment.

I had my vacuum pump come on every 30 to 40 seconds. So, I replaced the vacuum canister and check valve to the pump. The vacuum canister fit perfectly. With also replacing the check valve my vacuum leak was fixed.

No real issues for the money, it's smaller than most of them I've seen but I'm sure it's correct for its intended application. One of the two ports has a check valve but I'd use an external one just to be on the safe side.Good for adding to customs setups such as cruise control or for the HVAC system to deal with times of low vacuum.

The Dorman HELP! 47076 Vacuum Tank Unit was used to fix my van as the A/C only came out of the default defrost vents. It comes with its own internal check valve and no other parts are needed to make your AC run again. NO hose cutting is required. Thanks to the rednecks on Utube, you can disconnect the red line (wrapped) that is located just behind the oil filler neck. Remove the doghouse, run disconnected line back toward inside of van. Remove a bolt on the passenger side of engine cover near top. Use an awl or a small screwdriver through the bolt hole to push through the engine insulation. Peel back some of the black plastic insulation, which can be trimmed later. Pull off the connector on red hose and pull through the removed bolt hole. (It is tough to pull off, but it will come off, and then can be placed back on after threading through bolt hole). This end fits perfectly on the big port on the Dorman.On the passenger side inside the cab on the right are two hoses, a white and a black one. The black one goes through the firewall. Wiggle the bushing that goes through the fire wall and pull it inside a bit and unplug it from the ‘other’ side. This side will fit perfectly on the smaller connection on the Dorman. Fire that puppy up and notice the air now comes through the vents! The Dorman will fit up on the right side under the dash where you have to slightly push it past some wires, where it will now stay. Done! No cutting and no other parts used. Ignore the dead ends of the old hose. The hardest part was taking the doghouse off, which is made easier by the outside plastic housing on it just lifting off giving you more room to horse that pig out of the way.

My Chevelle had the original steel "bean can" and it was cracked. This is a good upgrade with the same bolt pattern

Lasted 5 years, but this happened idling in traffic when it was 92*. Not as heat tolerant as OEM

works well.

Jewelry RV Me on YouTube has a great video on this.search for this. Search for this title:Ford E450 A/C Vent distribution Problem and vacuum Canister bypass: Quick Clean Easy Fix :)So, our 2000 Ford E-450 6.8 liter chassis for our RV had the established issue of the vacuum canister going bad which means there is no vacuum to the vacuum switch in the top of the dash which actuates the doors inside the dash that route air to the AC / defroster and floor vents.When this happens the switch sticks in the position to make the defroster work and the AC doesn’t work.You need this, the video above and 5 feet of 1/8 inch vacuum line.I installed this inside the cab under the passenger side of the dash with a zip tie.I’m not sure if it matters, but I installed the big side going to engine with my new bypass vacuum line and the little side toward the existing line from the vacuum switch on top of the dash.