One was #53 and the other #54 on my 2018. Fill the cup with coolant and have someone hold it higher than the engine.Ħ. Connect the other end of the hose to the bottom of a disposable plastic drinking cup.ĥ. Connect the fitting to a two foot long rubber hose.Ĥ. Remove one of the two intercooler vent plugs.ģ. Rube would have been proud, but it works!įigured out a much simpler, more effective and less expensive way to fill and bleed our intercooler system this evening.ġ. If you have the Trifecta tune, you can run the coolant pump with the engine off. So there you have it, fill with the head of coolant in the funnel, periodically pull a vacuum, then admit more coolant into the system. You will also need a rubber plug, mounted on a stick, to block the fill valve to allow the vacuum to build. As you pull a vacuum, the bubbles will expand and move out of the system. 3/8" vinyl hoses go over the bleed valves and are sealed (sort of) with rope caulk. This way, the coolant collects there and does not get vaporized into the air by the evacuator. I made an accumulator out of a capped piece of 2' x 4" pvc pipe. I guess you could also use a ShopVac as a vacuum source. I used an air driven A/C evacuator to pull the vacuum. Problem is, some of the system will collect air that will not vent out on it's own. Open the vents, fill the funnel and use that head to push the coolant into the system. You will also need a stick to push on the pin of the fill valve. You will also need to steady the funnel, I used a small box with a cut out to fit the funnel. (cut the funnel so the hose fits tight inside, tape with electrical tape.) You can clamp the hose to the fill connection and get it leak free. I used a funnel, adapted to a 6" piece of 3/4" heater hose. It is possible to bleed the system without the special equipment. I *really* don't like the idea of not being able to easily check the amount of fluid in the system. I've considered adding a sight glass to the fluid manifold at the front of the intake just to be able to keep an eye on the intercooler fluid level and to make sure there's no trapped air. But if your intake temps are sitting at 150F+ chances are there's an air bubble or no/low fluid in the system or possibly a dead pump. However, without an external reservoir you can't easily verify that it's moving the fluid. If you barely crack one of the little brass bleeders and you don't get a drip of coolant immediately there's a good chance your fluid level is low or there's air trapped in the system since the brass fittings are not the highest spot in the system and should always have fluid there they're actually there to allow air into the system so you can drain it.Īs far as if the pump is functioning, they can cycle the pump on and off through GDS2 and listen/feel for it running. If you try and crack the little brass bleeders on the intercooler fluid manifold at the front of the upper intake manifold you'll introduce a little air into the system, but at this point you might not have anything to lose. Unless there is an obvious leak leaving dribbles of coolant on the ground there really isn't an easy way to check the fluid level, you need the vacuum filling system and the special quick connect fitting. Also, there's 2 revisions of the quick connect fitting for filling and bleeding, a -30 and a -30A make sure you or the dealer uses the newer -30A as the earlier -30 can damage the fitting on the intake manifold. To fill it and bleed it properly you need a vacuum filling system and a special $175+ quick connect fitting for the fill port. it's a sealed system with no separate reservoir for easy filling or for checking fluid level. The intercooler system is one of the things I wish was more user friendly on this car.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |