SoDakMac Posted March 23, 2008 Report Share Posted March 23, 2008 My 07 SGT only has 580 miles on it and has been sitting in a heated shop since early November. About every month or so I cannot stand seeing the thing just sitting in the shop any longer so I will start it up and back it out onto the pad in front and listen to that great exhaust. Upon the start up I get a small cloud of blue smoke. If I shut it off and let it sit 10-15 minutes and restart it does not smoke or if you rev it up some it does not smoke either. I figure that sitting for a long period some oil is getting around the rings since the motor is not broken in yet. I have never had this experience with a new engine but I have never let one sit for over a month at a time either. I am assuming that I do not have an issue with this engine but was wondering if anyone else has had the same experience or if I should be concerned. Link to comment Share on other sites More sharing options...
69dejavue Posted March 23, 2008 Report Share Posted March 23, 2008 My 07 SGT only has 580 miles on it and has been sitting in a heated shop since early November. About every month or so I cannot stand seeing the thing just sitting in the shop any longer so I will start it up and back it out onto the pad in front and listen to that great exhaust. Upon the start up I get a small cloud of blue smoke. If I shut it off and let it sit 10-15 minutes and restart it does not smoke or if you rev it up some it does not smoke either. I figure that sitting for a long period some oil is getting around the rings since the motor is not broken in yet. I have never had this experience with a new engine but I have never let one sit for over a month at a time either. I am assuming that I do not have an issue with this engine but was wondering if anyone else has had the same experience or if I should be concerned. I drove my vehicle for about 950 miles and placed in storage for about a month. When I started it up there was no smoke. I then drove out west, about 2,000 more miles, and placed in storage. It is only started every 3-4 months and there is never smoke upon startup. Link to comment Share on other sites More sharing options...
mffarrell Posted March 23, 2008 Report Share Posted March 23, 2008 My 07 SGT only has 580 miles on it and has been sitting in a heated shop since early November. About every month or so I cannot stand seeing the thing just sitting in the shop any longer so I will start it up and back it out onto the pad in front and listen to that great exhaust. Upon the start up I get a small cloud of blue smoke. If I shut it off and let it sit 10-15 minutes and restart it does not smoke or if you rev it up some it does not smoke either. I figure that sitting for a long period some oil is getting around the rings since the motor is not broken in yet. I have never had this experience with a new engine but I have never let one sit for over a month at a time either. I am assuming that I do not have an issue with this engine but was wondering if anyone else has had the same experience or if I should be concerned. Bad valve guides? Link to comment Share on other sites More sharing options...
SoDakMac Posted March 23, 2008 Author Report Share Posted March 23, 2008 Bad valve guides? You might be correct. I went out and started it up this p.m. and it smoked again. It has only been a few days since it was started the last time. Strange, I never noticed anything prior to putting the car away. Guess I had better check with my Ford dealer. My last problem with valve guides was a new 1966 GTO. Perhaps I am reliving more of my youth than I counted for. Link to comment Share on other sites More sharing options...
ilmor Posted March 23, 2008 Report Share Posted March 23, 2008 I would say something is wrong - it does sound like valve guides. Link to comment Share on other sites More sharing options...
wmoore Posted March 23, 2008 Report Share Posted March 23, 2008 Mine does the same thing every now and then, not on every start up though. Hey, maybe it's a Dakota thing...LOL..It does get cold up here. Link to comment Share on other sites More sharing options...
07SHELBY GT Posted March 23, 2008 Report Share Posted March 23, 2008 My 07 Mustang GT smoked on startup on occasion,My Shelby GT never did,Bullitt doesn't either.Yours is not the first complaint of this type.No one has ever posted a repair .Check your breather to MAF inlet tube for oil,Seems I remember a post concerning this.This is a possibility especially if you drive it hard before you park it. Link to comment Share on other sites More sharing options...
twobjshelbys Posted March 24, 2008 Report Share Posted March 24, 2008 I noticed it too on cold starts. In fact, it takes several starter cycles to get mine running when it's been sitting weekend-to-weekend... Link to comment Share on other sites More sharing options...
TClark1976 Posted March 24, 2008 Report Share Posted March 24, 2008 I've noticed the same thing with my '08 SGT My Father owns an auto service shop and has been a gear head his entire life. He's said the same thing about it being normal for a motor that hasn't been broke in yet and the seals haven't seated. . . . and that I shouldn't be too worried about it right now. I've only got 180 miles on my SGT. I too go and start it once a month and let it warm up. When I start it up the next time I am home - I'll pay more attention to this and see if she coughs out some blue smoke. Link to comment Share on other sites More sharing options...
twobjshelbys Posted March 24, 2008 Report Share Posted March 24, 2008 I've noticed the same thing with my '08 SGT My Father owns an auto service shop and has been a gear head his entire life. He's said the same thing about it being normal for a motor that hasn't been broke in yet and the seals haven't seated. . . . and that I shouldn't be too worried about it right now. I've only got 180 miles on my SGT. I too go and start it once a month and let it warm up. When I start it up the next time I am home - I'll pay more attention to this and see if she coughs out some blue smoke. I plan on watching oil consumption, but there isn't that much usage that I would notice a few milliliters of additional oil. I'm more concerned about it taking multiple starts to get it going. I am driving the automatic. I fired up the five-speed this afternoon and I just reached in and turned the key and it fired right up. There is definitely something different (and they are sequential VINs). I'll be taking the auto down to the dealer after I get back from Vegas. Something isn't right (although I can't say it is bad - it's still an extremely fun car! I'm finally having some fun.) Link to comment Share on other sites More sharing options...
tispco Posted March 24, 2008 Report Share Posted March 24, 2008 Mine does this as well and it is common. If my engine runs for a short time and then sits, it WILL smoke on the next startup. The general consensus on other sites I have searched think it's coming from the PCV system. Several have installed an air/oil separator to eliminate the problem. Now that I know what it is, I am not worried about it. Link to comment Share on other sites More sharing options...
SoDakMac Posted March 24, 2008 Author Report Share Posted March 24, 2008 Mine does this as well and it is common. If my engine runs for a short time and then sits, it WILL smoke on the next startup. The general consensus on other sites I have searched think it's coming from the PCV system. Several have installed an air/oil separator to eliminate the problem. Now that I know what it is, I am not worried about it. Thanks guys (or gals). I feel a little better now. I guess I'll hang in there and see what happens when I get a few more miles on the car. The weatherman indicated that this Easter was the coldest in 44 years so I will be glad when spring finally arrives and I can get the Mustang on the road. I still plan to contact my Ford dealer and see if they have had any GTs with the issue. Link to comment Share on other sites More sharing options...
Pastor Passum Posted March 24, 2008 Report Share Posted March 24, 2008 Mac, mine does that on occasion. I don't think there is a problem, rather I think it's because you're repeatedly starting the engine and allowing it to run for only a few minutes and then sutting it down without ever reaching full operating temperature. Because I sometimes have to move the Shelby out of the garage in order to move my motorcycle, it sometimes runs just a minute or so before being shut down. After doing this, it will sometimes smoke slightly on restart. It never smokes when it has been driven and allowed to heat up sufficiently. If it did, then I would worry. I think thats normal. Hope this helps. Jim Link to comment Share on other sites More sharing options...
bruces Posted March 26, 2008 Report Share Posted March 26, 2008 Picked up my SGT Feb 07 car does same thing on start up after sitting car has only 300 miles on it was told by Ford engine not broken in yet my 2002 M3 BMW did same thing until about 2000 miles now is fine Bruce Link to comment Share on other sites More sharing options...
GTSHELBY Posted March 26, 2008 Report Share Posted March 26, 2008 I had notice this same thing. So I did some testing results were this only ocurs if you don't let the engine heat up to normal temp. I have about 4k on mine. So this rules out anything that leaking in while car sits. Rick ASE Master Tech Link to comment Share on other sites More sharing options...
blueshawk Posted March 26, 2008 Report Share Posted March 26, 2008 Mac, mine does that on occasion. I don't think there is a problem, rather I think it's because you're repeatedly starting the engine and allowing it to run for only a few minutes and then sutting it down without ever reaching full operating temperature. Because I sometimes have to move the Shelby out of the garage in order to move my motorcycle, it sometimes runs just a minute or so before being shut down. After doing this, it will sometimes smoke slightly on restart. It never smokes when it has been driven and allowed to heat up sufficiently. If it did, then I would worry. I think thats normal. Hope this helps. Jim This is the right answer. My name is also Jim! Link to comment Share on other sites More sharing options...
SoDakMac Posted March 27, 2008 Author Report Share Posted March 27, 2008 I talked to my Ford service manager today and he said they had noticed the blue smoke with some new Ford vehicles. He indicated they checked out a F150 and could find nothing wrong with the engine. They really did not have an official explanation but was betting that the issue would go away when the Mustang was driven more and no more “cold” shutdowns. So, I guess there is some agreement on the probable cause and nothing to stress over. Link to comment Share on other sites More sharing options...
greaser Posted March 29, 2008 Report Share Posted March 29, 2008 mine also does this or did i havnt seen it lately but it was on the cold shut downs that it happened. Link to comment Share on other sites More sharing options...
avoeltz Posted March 30, 2008 Report Share Posted March 30, 2008 Brought home my '08SGT in mid Feb. and put it away with 200 miles. Backed it out a couple times and let it run up till the fan started. Got a huge blue cloud every time on a cold start. Called my salesman. He said all the new MOD motors do it. When he moves F-150's around the lot, he sees it all the time. Called it "Skeeter spray". Told me not to worry about it. We'll see. Link to comment Share on other sites More sharing options...
shelby dog Posted March 31, 2008 Report Share Posted March 31, 2008 My 08 does the same thing bought in december 07 have 3000 miles, does smoke everytime at start up in mornings I think it is going to get better! Link to comment Share on other sites More sharing options...
Redlinetoys Posted October 31, 2010 Report Share Posted October 31, 2010 Interesting and only a little reassuring that others have the same problem. Mine has 15,000 miles and still does it occasionally, and not just after a short cycle. Sometimes it does it after a lengthy drive. No matter what anyone says, I don't like it! Link to comment Share on other sites More sharing options...
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