Rough and noisy at startup
06-24-2010, 08:08 PM
#31
I've got the rough starts as well. 1,200 miles so far, but it's been like that since I took delivery. I'm thinking it is normal since it appears that a whole lot of folks have the same issue.
In comparison, my 07 did not do it. It purred when started no matter what temperature. It's a slightly different engine, but is it that different?
In comparison, my 07 did not do it. It purred when started no matter what temperature. It's a slightly different engine, but is it that different?
06-24-2010, 09:47 PM
#32
Registered User
To me, it slightly resembles the sound of a big block starting up that has an advanced camshaft. No really, it sounds fine to me. Pennzoil Ultra and it sounds fine.
Last edited by TinsleyC; 10-17-2010 at 11:07 PM. Reason: correct spelling
06-24-2010, 09:50 PM
#33
Registered User
No high idle? Mine sits at 1,200 for about 15 seconds, then 1,100 for 10, and down below 1,000 after about 25 seconds. That's when I hit "R".
06-24-2010, 10:15 PM
#36
I'll make a point of checking my tach, when I start it up in the morning.
06-24-2010, 10:59 PM
#37
Registered User
exit9: Exactly my sentiments. Mine's two weeks old, 400 miles, it has been that way since delivery. I figure its normal as others have said. Different than my 07, but the engine "sounds" different than the 07 in all respects. I too wait the 20-30 seconds before driving off, the idle slows down in that time. It HOT outside, let's see how she performs in the colder weather....
06-26-2010, 02:18 PM
#38
You'll start to learn and just accept that the G makes a lot of strange noises that are supposed to be "normal"....
never had this with any other car (lexus, benz, acura)
never had this with any other car (lexus, benz, acura)
06-27-2010, 03:43 AM
#39
The sound is normal. When the engine is cold, the exhaust make a lot of noises that maybe mistaken with "valve noise" or "dry start". The sound is loud with clatters characteristic of a helicopter and some hissings, but most of it is not from the engine mechanical; it is from cold exhaust. There may be some valve train ticks but that is normal. My neighbor M3 does this too, much worst.
If is not "oil" issue, if it does then you should hear this start up noise when the engine is at its normal operating temperature.
If is not "oil" issue, if it does then you should hear this start up noise when the engine is at its normal operating temperature.
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