Cold start not as "WTF" loud anymore.
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Cold start not as "WTF" loud anymore.
I just noticed that when I cold start my car (after even leaving it overnite), it doesn't have that loud "WTF" bark anymore. It sounds like a regular start as if the engine has been running awhile prior. Does it start up differently when you are within 20 days of service? Or is it affected by the ambient temp of the motor or oil? The inside of my garage is quite hot now that it is summer. This is the first year of ownership for me and I hardly drive it (just hit 2100 miles) so I am not intimately familiar with all of it's characteristics. The first oil change is due because of time and not mileage.
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I say ambient temperature. I'm sure when winter comes for you you'll start hearing the loud roar again...or you could always leave a fan running in front of your engine or have an ac installed just for your car 
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I just noticed that when I cold start my car (after even leaving it overnite), it doesn't have that loud "WTF" bark anymore. It sounds like a regular start as if the engine has been running awhile prior. Does it start up differently when you are within 20 days of service? Or is it affected by the ambient temp of the motor or oil? The inside of my garage is quite hot now that it is summer. This is the first year of ownership for me and I hardly drive it (just hit 2100 miles) so I am not intimately familiar with all of it's characteristics. The first oil change is due because of time and not mileage.
I want to know what the ramifications are on a car when you leave it stored for sometime or not drive it besides battery dying and the tires going flat and deforming?
Carbon build up in engine?
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From: Vegas and Vancouver, BC
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I drive my 190e daily. I wonder if this is service related? When the reminder started at 30 days I still got the roar and the 16th day, yesterday, and 15th day today, the roar is gone. I guess I need to start it in the AM when eveything is cooler? Summer heat in Vegas sucks!
Last edited by Sincity; Jul 12, 2010 at 08:28 PM.
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I just noticed that when I cold start my car (after even leaving it overnite), it doesn't have that loud "WTF" bark anymore. It sounds like a regular start as if the engine has been running awhile prior. Does it start up differently when you are within 20 days of service? Or is it affected by the ambient temp of the motor or oil? The inside of my garage is quite hot now that it is summer. This is the first year of ownership for me and I hardly drive it (just hit 2100 miles) so I am not intimately familiar with all of it's characteristics. The first oil change is due because of time and not mileage.
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higher ambient temps will tame that bark a bit, as others mention. I'd also expect that, as the engine and exhaust hardware continue to "break-in" it'll mute some of that tone as well.
Still a beast you've got there, though.
Still a beast you've got there, though.
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From: Melbourne, Australia
2011 Ultima GTR
2100 miles in a year? DAMN. I've had the car since April 22 (nearly 13 weeks), I've just clocked over 10,000km (6250 miles)
But yes, I've also noticed my cold start is not as barky some times too. Don't know why, oh well, it still drives fine.
But yes, I've also noticed my cold start is not as barky some times too. Don't know why, oh well, it still drives fine.
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I think it has to do with ambient temps and oil temp too. I would agree with the 80F as the point where the startup sound changes a little.
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I've noticed this effect also but I think it's rpm-related. The car surprises me sometimes with how aggressive the initial bark is on startup but I frequently catch myself thinking that it revved a little higher too.
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SIN even has a cooler in his garage, I have nothing and the temp this time of year is never below 85 and during the afternoon its close to 100 with the DOOR closed. But I agree the growl is missing due to the ambent temp being so high. Performance even suffers a little; forecast 112 for Friday, ugh.
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SIN even has a cooler in his garage, I have nothing and the temp this time of year is never below 85 and during the afternoon its close to 100 with the DOOR closed. But I agree the growl is missing due to the ambent temp being so high. Performance even suffers a little; forecast 112 for Friday, ugh.
BTW-I'm over 100 with the door closed in the afternoon and I my garage faces north.
Time to drive to LA to hear the cold-start growl again.bhamg: Yours bark with the headers.
Last edited by Sincity; Jul 12, 2010 at 11:29 PM.
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I just noticed that when I cold start my car (after even leaving it overnite), it doesn't have that loud "WTF" bark anymore. It sounds like a regular start as if the engine has been running awhile prior. Does it start up differently when you are within 20 days of service? Or is it affected by the ambient temp of the motor or oil? The inside of my garage is quite hot now that it is summer. This is the first year of ownership for me and I hardly drive it (just hit 2100 miles) so I am not intimately familiar with all of it's characteristics. The first oil change is due because of time and not mileage.
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http://www.youtube.com/watch?v=jofNWZGIy1Q
And one from behind, courtesy of BeltFedBob:
http://www.youtube.com/watch?v=MQA4h...eature=related
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From: Central Florida
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It is absolutely temperature related. The colder the ambient air the louder the cold start is and the longer it roars above 1000 rpm before settling back down to idle. In Florida it is like having two different cars.
