MadeInJapan Posted February 8, 2009 Report Share Posted February 8, 2009 So I Seafoamed my car yesterday...second time. First time was last summer and it made some difference but didn't smoke a whole lot.Yesterday, as it has really warmed up here in the last few days, I decided to Seafoam my car again. When I did it, I probably sucked in more than 1/3 of the can (but not much more) into the intake from a vacuum hose, let it sit for 20 minutes+ and then went out to crank my car. I first got misfire codes and the car almost died (CEL but I turned it off later- no biggie), but I kept my foot on the gas pedal and really got a ton of smoke out of my exhaust....like it's suppose to be. BUT WHAT CONCERNED ME was that I was also getting the stinky smoke coming up from behind the engine in my engine bay- a pretty good amount. Once everything was burned off, there was no more exhaust coming from this area. The car drives fine- actually, much better after these cold months and I'm getting no sound like I have a leak from behind the engine in the downpipe, exhaust manifold, gasket, flexible pipe, etc.So, my question is, is this normal from Seafoam? Do I need to look for a leak, or just forget about it and chalk it up to some kind of freak incident? I'm sure that if I have a leak back there, it's going to rear its ugly self eventually anyway and I'm going to have to deal with it. If anyone has had the same thing happen, or know what could possibly be going on, please post back. Thanks in advance, MIJ Link to comment Share on other sites More sharing options...
Yosser Posted February 8, 2009 Report Share Posted February 8, 2009 I had the same thing happen when I Seafoamed my 98 V70 T5, but it was a small amount of smoke from the rear of the engine.I couldn't find anything obvious at the time, but a couple months later I discovered the downpipe was loose at the turbo so I *guess* that was my problem.People tell me that these cars are known to shake the exhaust manifold mounts loose after time too. Link to comment Share on other sites More sharing options...
AlvinL Posted February 8, 2009 Report Share Posted February 8, 2009 +1 on retorquing the exhaust manifold nuts. Link to comment Share on other sites More sharing options...
Oreo931 Posted February 8, 2009 Report Share Posted February 8, 2009 It could also be that your exhaust manifold has a small crack in it. That is not uncommon. Or that the flex pipe in your downpipe is leaking. Link to comment Share on other sites More sharing options...
MadeInJapan Posted February 8, 2009 Author Report Share Posted February 8, 2009 Thanks guys...I'll check it out...I'm doing a transmission flush today anyway so I'll be down under there. Link to comment Share on other sites More sharing options...
dublin14 Posted February 8, 2009 Report Share Posted February 8, 2009 Thanks guys...I'll check it out...I'm doing a transmission flush today anyway so I'll be down under there.I used it a few times before my DP and racecat install, is it safe to use with a Magnaflow racecat?? Link to comment Share on other sites More sharing options...
MadeInJapan Posted February 8, 2009 Author Report Share Posted February 8, 2009 I don't see why not.Btw, I took the heat shield off (what a pain- the turbo hose has to come off at the turbo to reach that last screw ) to take a look... I put a torque wrench to every bolt related to the exhaust and everything is tight as it should be. I may have a crack but it's not visible. While I was in there, I figured out why I had 2 T-botl Clamps left over from letting a shop install my silicone turbo hoses (I was in Japan at the time and didn't have time to do this and a few maintenance items). They used regular clamps there...oh well, a bit of a pain but since I had the turbo hose off anyway, I changed them out with the T-bolts. I guess I'll wait and see if I develop any exhaust issues. The only thing I can think of is, if it's not the manifold itself then maybe the seafoam saturated the gasket and decided to burn off from the heat. Link to comment Share on other sites More sharing options...
mmmmmmm Posted February 8, 2009 Report Share Posted February 8, 2009 If you seafoam a turbo car, you can expect some white smoke to escape from the places where the turbo makes to the exhaust mani and the DP. Mine smoked from those places. I'm pretty sure it says that on the can? I could be wrong about that though. Link to comment Share on other sites More sharing options...
khax Posted February 8, 2009 Report Share Posted February 8, 2009 this sounds like the scariest procedure ever. Link to comment Share on other sites More sharing options...
HayaCruza Posted February 9, 2009 Report Share Posted February 9, 2009 this sounds like the scariest procedure ever. :lol: Link to comment Share on other sites More sharing options...
MadeInJapan Posted February 9, 2009 Author Report Share Posted February 9, 2009 :lol: If you seafoam a turbo car, you can expect some white smoke to escape from the places where the turbo makes to the exhaust maniI don't see how...that area was really good and tight!All is good...flushed my tranny again today too...smooth as butter at 170K miles!Car runs sooo smooth, I really don't care now that it smoked in the engine bay w/ the Seafoam.Btw, if you've never Seafoamed your car- you're missing one of the highlights of owning a car- Volvo or not! :blink: Link to comment Share on other sites More sharing options...
RSM(GA) Posted February 9, 2009 Report Share Posted February 9, 2009 I don't see how...that area was really good and tight!All is good...flushed my tranny again today too...smooth as butter at 170K miles!Car runs sooo smooth, I really don't care now that it smoked in the engine bay w/ the Seafoam.Btw, if you've never Seafoamed your car- you're missing one of the highlights of owning a car- Volvo or not! Just bought a 98 S70 T5 last week. 91k miles on it (I stole it a $1000.00). Do you think I should Seaform it? I am kind of leary after reading some of the posts.ThanksRob Link to comment Share on other sites More sharing options...
dcovey Posted February 9, 2009 Report Share Posted February 9, 2009 I don't know if it's related, but I've had my engine out a couple times in the past year and when I put it back in and start it for the first time, I always get some exhaust leak from the turbo area that goes away after it warms up the first time. Link to comment Share on other sites More sharing options...
mmmmmmm Posted February 9, 2009 Report Share Posted February 9, 2009 I think that you should seafoam that volvo. especially if it was sitting for any period of time. Link to comment Share on other sites More sharing options...
MadeInJapan Posted February 9, 2009 Author Report Share Posted February 9, 2009 I think that you should seafoam that volvo. especially if it was sitting for any period of time.+1 Link to comment Share on other sites More sharing options...
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