I believe it's shown below (item # 11?). I've never done this work myself, and never pulled an M119 intake manifold off, so I'm not 100% certain.

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Dave
Boise, ID
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Removing the upper intake and fuel injection plumbing to get to the EGR tube (which is nestled between the upper and lower sections of the intake manifold) looked like a lot of work.

The flexible cable I used went in pretty far - looked like it should have gone far enough to reach the end of the tube; but the EGR tube was still mostly plugged.

I was able to finally clear the EGR tube after repeated applications of carb cleaner (cat safe) and some compressed air.

400E runs great, passed SMOG, and is once again "legal".

And my wife is happy because I won't be using her SUV (as much).

- Forrest
1992 400E

Forest,

So you just pulled the EGR off and worked what into the hole as a flexible cable?? So was it mainly the repeated soaking to loosen things up with carb cleaner or was it the rodding action which did the trick.


Michael

Michael,

The repeated soaking with carb cleaner and the application of compressed air resulted in clearing the blockage.

Looking at the diagram that Dave provided, the flexible cable was not getting far enough down the tube (part # 11) to do the job. The tube extends beyond the lower flange and I didn't take that into account.

- Forrest