|
|
|
|
Thread Tools | Display Modes |
11-18-2019, 07:47 PM | #1 |
Scooby Newbie
Member#: 112799
Join Date: Apr 2006
|
Identifying a leak - 2002 WRX Impreza Wagon
Hi all, I have a 2002 Impreza WRX with a leak that I'm trying to identify and repair***8230; perhaps you can help!
At stop lights, I've been seeing white smoke coming from under my hood and there's an acrid, burnty smell - not what I'd call sweet - and it's bad enough that I use recirculating air now to keep it out of the cabin. I thought it was power steering fluid at first but not sure. What does ATF Dextron III smell like when it boils off? I looked under the hood looking for wet spots and found this hose. The hose itself looks wet as is what's underneath it (the wet stuff is actually grease and collected dirt - I just wiped some of it off). My guess is that it's dripping onto something hot - can something perhaps be spraying onto this area, or drips boiling and condensing on these things? Any eagle-eyes know what this is? (I already looked through the service manual but the line drawings are a bit hard to follow - wish there was an interactive point-and-click "what is this thing" on the web, you know?) I took some pictures -* Also, notice the white splatters? Coolant spray, right? Looking at the splatter pattern***8230; Maybe it originates from this hose area - it might be from washing the car - perhaps it's coming from somewhere else? It's possible there are multiple things going on. Hopefully it's checking a spring clamp or some other easy repair!
* Registered users of the site do not see these ads.
Last edited by drtofu; 11-18-2019 at 09:20 PM. |
11-18-2019, 08:42 PM | #2 |
Scooby Guru
Member#: 50586
Join Date: Dec 2003
Chapter/Region:
BAIC
Location: Chiraq
Vehicle:64 Impala |
those hoses are part of the pcv system, you should probably check the pcv valve and see if it's stuck and replace it...that's where that hose is going to
|
11-18-2019, 09:23 PM | #3 |
Scooby Newbie
Member#: 112799
Join Date: Apr 2006
|
Thanks - I was really wondering what these hoses were but wondering if that's the leak I'm smelling. It definitely has the more acrid smell of power steering fluid.
I added some more info above***8230; basically, not sure these are actually leaking oil, just that they're oily/caked with grime. Also, no rough idle, etc. symptoms currently. Another possibility is something dripping or spraying onto this area***8230; power steering fluid? The power steering has started to whine a bit. Last edited by drtofu; 11-19-2019 at 03:07 AM. |
11-19-2019, 01:17 PM | #4 |
Scooby Guru
Member#: 50586
Join Date: Dec 2003
Chapter/Region:
BAIC
Location: Chiraq
Vehicle:64 Impala |
If the hoses are original on a 2002 wrx they need to all be replaced, they become hard and brittle with age and will start to leak all over. The most common leak is the hose from the oil return line underneath the turbo, it will drip down onto the uppippe and smell really bad...
|
11-19-2019, 10:42 PM | #5 |
Scooby Newbie
Member#: 112799
Join Date: Apr 2006
|
Hmm... yeah, pretty sure they're original hoses (had a short block replacement at 80k about 10 years ago - killed from oil starvation) - I think they used the old hoses.
I wonder how much that'll all cost... |
11-30-2019, 12:47 AM | #6 |
Scooby Newbie
Member#: 112799
Join Date: Apr 2006
|
I think I've confirmed it's the PCV system at an autocross day - Smoking when use the turbo a lot, not much smoking when I don't.
|
11-30-2019, 02:39 PM | #7 |
NASIOC Supporter
Member#: 132
Join Date: Jul 1999
Chapter/Region:
Tri-State
Location: Cold in winter, hot in summer
Vehicle:GDA- D, GDA-A, VAG-A GDA-A - ShinjiTuned |
I've never seen a PCV hose leak to the point that you are seeing smoke coming from under the hood.
You have another issue for sure. Get looking. It likely smokes more after using the turbo because whatever it is dripping on is getting much much hotter when you are into the boost(exhaust, head, turbo, etc.). Common "smokey" culprits include: Valve cover gaskets/grommets/spark plug seals/half moons/breather gaskets Front main seal Oil cooler gasket Power steering lines Coolant lines/hoses: Virtually any of them. |
12-02-2019, 12:03 AM | #8 |
Scooby Newbie
Member#: 459312
Join Date: Dec 2016
Chapter/Region:
MWSOC
Vehicle:2004 WRX Wagon Hybrid 6MT Swapped WRB |
It’s oil blow by on that wet tube
Every hose in your bay started life as nice rubber now it’s brittle and should all be overhauled As far as the smoke check valve cover gaskets and the turbo drain aswell as the power steering pipes that lead to the rack from the pump they can leak at multiple connections some of which cause it to simply just need replaced |
12-03-2019, 08:15 PM | #9 |
Scooby Newbie
Member#: 112799
Join Date: Apr 2006
|
Yeah, I think it's time to get all these tubes replaced.
The car's about 150K miles - I was hoping that the tubes were replaced when the short block was replaced, but thanks to everyone here, it's pretty clear they're probably all dried out. Also, found that my inner CV joint's boot came off, so possible splattering of grease as well. |
12-04-2019, 12:25 AM | #10 | |
Scooby Newbie
Member#: 508031
Join Date: Nov 2019
Location: Calgary, AB, CAN
|
Quote:
I did this on mine and found a couple bolts for manifold to tgv were loose. |
|
Thread Tools | |
Display Modes | |
|
|