Cold start chatter
#352
I'm on LI, you'd be hard pressed to find a slope of anykind. ;-) I park on a dead flat driveway and parking lot at work. My data shows only one thing: COLD temperature. 95% of the time, it must be lower than 30 degree's and the colder it is, the more likely it is to occur.
#354
Definatly sounds like oil starvation to the upper engine regions.
Another thing which I have NOT seen in this thread is "other things" that get lubricated at the top of the engine: The TURBO!!!! I dono if its being fed by the same upper cyl system but if its not getting oil it will fail quickly, especially if people are driving while the engine it clacking.
Maybe oil pressure is bypassing the cylinder head through the turbo??
Does anyone remember of a product called "Marvel Mystery Oil"??? Its a special top cyl lubricant which is readily available and was 'advertised' to be effective for overhead cam'ed engines. I used it in many of my cars for years without any pro/con effects but since stopped after engines went to Synthetic formulas. Perhaps we should add a few ounces to the engine oil?
Also, I just read this entire thread, ALL 15 PAGES, and I have not seen a confirmation on a model your 2008 Mini having these issues. Only 2007 S models (and I guess the 207c peugots).
Another thing which I have NOT seen in this thread is "other things" that get lubricated at the top of the engine: The TURBO!!!! I dono if its being fed by the same upper cyl system but if its not getting oil it will fail quickly, especially if people are driving while the engine it clacking.
Maybe oil pressure is bypassing the cylinder head through the turbo??
Does anyone remember of a product called "Marvel Mystery Oil"??? Its a special top cyl lubricant which is readily available and was 'advertised' to be effective for overhead cam'ed engines. I used it in many of my cars for years without any pro/con effects but since stopped after engines went to Synthetic formulas. Perhaps we should add a few ounces to the engine oil?
Also, I just read this entire thread, ALL 15 PAGES, and I have not seen a confirmation on a model your 2008 Mini having these issues. Only 2007 S models (and I guess the 207c peugots).
#355
You're right...no reports on 2008 models having this issue, but that is because the first 2008 models were delivered in very late December '07 and early January '08. Most folks here report the issue at a few thousand miles into their driving. Folks with 2008 models don't have many miles on their vehicles yet.
#358
#359
You're right...no reports on 2008 models having this issue, but that is because the first 2008 models were delivered in very late December '07 and early January '08. Most folks here report the issue at a few thousand miles into their driving. Folks with 2008 models don't have many miles on their vehicles yet.
PS- What is "celcius"?
#360
Cold Start Chatter
I've got an 08 MC on order and wonder...
Anybody out there with an 07 base cooper with this same problem? I know that some have said that the MCS versus MC engines are different enough that it's not (not right now anyways) a problem with the MC-nonS. I've got to say, it's got my attention.
Greg
Anybody out there with an 07 base cooper with this same problem? I know that some have said that the MCS versus MC engines are different enough that it's not (not right now anyways) a problem with the MC-nonS. I've got to say, it's got my attention.
Greg
#361
Please refer to this thread: https://www.northamericanmotoring.com/forums/showthread.php?t=121761
I have heard that some MC owners have heard this noise before. However, it is much more prevalent in the MCS.
I have heard that some MC owners have heard this noise before. However, it is much more prevalent in the MCS.
#362
#363
Sbutler,
Did you purchase your MCS at Niello as well?
update on my cold start
I just had the high pressure fuel pump replaced and have not had any problems/stuttering/sounds etc.,. I will keep you all posted, but so far so good. Also seems like I am getting better MPG avg as well even with my heavy foot.
Did you purchase your MCS at Niello as well?
update on my cold start
I just had the high pressure fuel pump replaced and have not had any problems/stuttering/sounds etc.,. I will keep you all posted, but so far so good. Also seems like I am getting better MPG avg as well even with my heavy foot.
#365
Sbutler,
Did you purchase your MCS at Niello as well?
update on my cold start
I just had the high pressure fuel pump replaced and have not had any problems/stuttering/sounds etc.,. I will keep you all posted, but so far so good. Also seems like I am getting better MPG avg as well even with my heavy foot.
Did you purchase your MCS at Niello as well?
update on my cold start
I just had the high pressure fuel pump replaced and have not had any problems/stuttering/sounds etc.,. I will keep you all posted, but so far so good. Also seems like I am getting better MPG avg as well even with my heavy foot.
On the other question, they said they were getting irregular pressure readings and did not measure up against some standard measurement of fuel flow.
However once my car was warmed up, I couldn't tell anything was wrong. It was only when it was cold (temps external or internal).
#366
#367
So I'm taking my car in Friday because the CEL came on the other day with sputtering during start up. The CEL is gone now, but I was going to talk to them about this rattling problem since when I brought it in, I had already changed the oil with 0w-40 and have not had the problem since. Should I point them to the motoringfile article and mention that they probably couldn't reproduce it because I had changed the oil with 0w-40 or will they kill me for doing that?
I"m still very much so on the fence as to what to do about this whole thing. I had it twice before I changed my oil, now I'm wondering if I should just keep using 0w-40 or change back to reproduce the problem. We've had negative temperatures since I changed my oil and no sounds. For those who have rattling pretty consistently, maybe a quick oil change is all you need, at the very least it will shut down one of the theories/fixes.
I"m still very much so on the fence as to what to do about this whole thing. I had it twice before I changed my oil, now I'm wondering if I should just keep using 0w-40 or change back to reproduce the problem. We've had negative temperatures since I changed my oil and no sounds. For those who have rattling pretty consistently, maybe a quick oil change is all you need, at the very least it will shut down one of the theories/fixes.
Last edited by mataku; 02-27-2008 at 02:31 PM.
#370
To all affected by Cold Start Noise, please go to NAM "COLD START DATABASE" https://www.northamericanmotoring.co...d.php?t=130308 and register so there is a single bank of info for MINI to see and use hopefully to all our mutual benefit to fix the problem(s). Thanks.
#371
After hearing it today for the first time, first-hand on my car, I'm changing my vote to a complete lack of top-end lubrication.
Holy crap.
Holy crap.
Dang-it!!!
It happened to me for the first time this morning. The recordings don't do it justice.
6/07 build 2007 R56Sa with 19,600 miles.
The noise lasted for about 10 seconds and I turned off the engine in horror. I pulled out the keyfob, counted 5 Mississippis, and restarted. I was rewarded with the normal ticking.
I've had 2 oil changes already at the 8K and 15K mile-marker; I used stock oil and filters. Done by Harrison Mortorsports.
It was 22 degrees outside but 47 degrees in my garage.
It happened to me for the first time this morning. The recordings don't do it justice.
6/07 build 2007 R56Sa with 19,600 miles.
The noise lasted for about 10 seconds and I turned off the engine in horror. I pulled out the keyfob, counted 5 Mississippis, and restarted. I was rewarded with the normal ticking.
I've had 2 oil changes already at the 8K and 15K mile-marker; I used stock oil and filters. Done by Harrison Mortorsports.
It was 22 degrees outside but 47 degrees in my garage.
#372
#373