RDX_indy

Reason #4 why these cars are POS.

My RDX has been slowly leaking coolant for almost a year. Failed the pressure test. Still No exhaust fumes getting into the coolant. I performed the exhaust gas test for the 3rd time with nothing.

It looks like the coolant is leaking around the head where it meets the turbo charger. I have heard of this happening. I'm probably gonna but it some type of head gasket sealer. Tired of this car. it's been nothing but problems.

I hope my cats aren't clogged because my car has had awful performance the last few weeks. I'm gonna lose my ass on this car.


Picture - embedding an image doesn't seem to work.
https://i.imgur.com/gPj3TPz.jpg

RDX_indy

Leaking all above exhaust manifold. I will try the hoses first.

RDX_indy

The leak is probably the entire exhaust manifold. just great.

DCS

Might be this o-ring, the guy in the video said the coolant leaks across the top of the exhaust manifold like in your photo.

RDX_indy

hey hey. you beat me to it. I saw this video earlier today. I am definitely leakking coolant from there. I hope it's the only place. i'm crossing my fingers because i'm not getting exhaust fumes into my coolant.

DCS

I hope it's just the o-ring and not something more serious. This is a tough high heat environment for an o-ring so I can see how this one can fail and start leaking over time. Looks like kind of pain to replace but a cheap part to replace and a much better problem to have than a failing head gasket or cracked exhaust manifold.

RDX_indy

O-Ring (13.5X3.5) - Acura (91311-PRB-A00)

that's the small o-ring that's leaking on the manifold. #14

DCS

Next time I place an order for a part I'm going to get one of these o-rings to have on hand.

RDX_indy

can't go wrong. only $1.90