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Reid Walkenhorst (Runningmule)
New Member
Username: Runningmule

Post Number: 15
Registered: 05-2003
Posted on Saturday, November 15, 2003 - 06:19 am:   Edit Post Delete Post Print Post

I'm at a total loss on this one. Every so often I get an orange/red sludge sitting on my left valve cover, I have cleaned it off a couple times now, yet I can't see where it's coming from. It seems to collect around the vent tube and under the throttle body. I've removed the ducting to the throttle body and everything appears to be clean inside. Any input or suggestions on things to check would be appreciated. The sludge sort of smells like coolant but its oily and almost crystalline. Beats me.
 

david summers (Texmoto)
Member
Username: Texmoto

Post Number: 84
Registered: 12-2002
Posted on Saturday, November 15, 2003 - 07:52 am:   Edit Post Delete Post Print Post

It is coolant. I just had the same thing happen on my 99 D2. I believe the problem was a leaking throttle heater gasket, or something like that. I tried tightening the clamps on the coolant hose that comes out of the left valve cover, but I would still get some sludge. I can't tell you how to change the gasket or cost, as I had it repaired under warrenty. Hope this helps.
David
 

OLIVER CLOTHSOFF (Everythingleaks)
Senior Member
Username: Everythingleaks

Post Number: 326
Registered: 10-2002
Posted on Saturday, November 15, 2003 - 09:15 am:   Edit Post Delete Post Print Post

The coolant you are seeing is coming from the throttle body de-icer area. Check around the two hoses and the de-icer gasket itself, all are common leaks. You should be able to see the coolant trail with the naked eye without pressure testing the system.

The de-icer gasket, part number MGM000010k, is a simple repair. Remove throttle body, turn over, remove three 5.5mm bolts.

The short hose involves removing the A/C compressor. Just remove the belt, unbolt compressor, and move out of the way. You should be able to see the end of the hose now.

The longer hose that attachs to the plastic tubing, part number PCH000420, is as simple as it looks. I suggest cutting the plastic tubing or pulling the hose off to get it out from behind the compressor. On install don't worry about getting it back behind the compressor again, just lay the hose between the compressor and the inlet manifold. I have never seen a problem from this.

Another area to inspect on the 50k+ D2 is the top radiator hose. They tend to start swelling by the intake manifold outlet and either split or get big enough to rub on the belt. Part number is PCH000460.

P.S. - don't use the same clamps over again on the two de-icer hoses. They tend to loose tension after removal.

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