mekantor

Could someone please post info on where this valve is located and how to use it? Yes, I searched.

in advance

shardul

iTrader: (1)

Will look at the wis tonight. What are you trying to do so I know what to search for.

mekantor

I've been inside and out the WIS. It references it but I can't find specific details.

I may be replacing a head gasket soon, thats what I'm doing

mekantor

I went back to WIS, hoping a fresh look will help me find it, no luck.

In "Remove/isntall fuel rail with injectors" it just states "Release fuel pressure via service valve" and has a clickable number: 119589046300, but that just leads to torque specs for the fuel rail.

In "Remove/install cylinder head" it says "Release fuel pressure through service valve"

mekantor

119589046300 appears to be the part number of the hose which sits between the fuel line and the rail.

shardul

iTrader: (1)

What's wrong with your head gasket?

mekantor

The driver-side head gasket may or may not be leaking coolant into one or more cylinders. I haven't been able to reach 100% certainty on this, still investigating...

mekantor

I think I found the valve, I'm not by the car right now so I can't look, but I think its a hex plug at the end of the fuel rail, which would make sense.

shardul

iTrader: (1)

Hmm are you loosing coolant or is oil getting milky.

Let me know if you need a second hand while doing to work. Will be an interesting learning experience.

mekantor

There is lots of steam coming from one of the tail pipes. Idle steady, engine temp steady, check engine on, compression appears to be in spec. This started happening just after I replaced the driver-side valve cover gasket, but nothing about that job can affect coolant or the head gasket, and a coincidence is possible but extremely unlikely, which is why I've had my doubts, but there are few remaining causes for the symptoms.

I am going to read the check engine code today, and test compression on a cylinder I didnt have time to look at before.

If I am confident that the head gasket is the problem, and if I can get a hold of all the parts and tools soon enough... like at the dealer tomorrow, then I will probably start this work on Sunday, and take Monday off in case I dont finish. If I dont start on Sunday, then the repair will have to wait for two weeks because I wont have time.

If you're free, an extra pair of hands would be welcome.

shardul

iTrader: (1)

I will be free sat and sunday. I can help you. Call me at 832 264 0399
When you buy the parts from the dealership ask the parts guy if aldine collision has a shop account maybe you can get a discount.

Blacksport350

You can just "crack" the line to relieve the pressure as it isn't very high. It's not a bad idea to leave a rag over it when you crack it so that it doesn't spray fuel on surrounding parts.

mekantor

Thanks, good to know. I found it though:

xpl0sive

i need to release the pressure from my fuel rail... how would I go about using this valve? is there some special tool I need from MB? It looks to me like it works just like a valve stem on a tire... or should i just release the pressure via the inlet line?

xpl0sive

well i said **** it and unbolted the inlet.. there's really no pressure built up, just gas in the rail. i collected it with a rag and all is well

aghakauve

Edit: Saw your last post