RPM drop when letting of throttle - Corvette C6
06-01-2019, 07:54 AM
#1
RPM drop when letting of throttle - Corvette C6
HELP! ( videos below (post number 5) to describe what i experienced)
I'm in the market to buy a C6. I test drove it the other day, and i noticed something when driving slow. Let's say i'm doing 20 mph and it's in (D)rive. As soon as i let off the throttle, the RPM's drop to idle at about 850 RPM. As soon as i give some gas to maintain my speed, the RPM's go up to maybe 1500-2000 RPM and stay there as long as i give it a little throttle. Is this normal? Is this normally how autos behave? I have driven another auto car before (not corvette) that did the same thing. The Corvette is a 2006 Auto. HELP!
I'm in the market to buy a C6. I test drove it the other day, and i noticed something when driving slow. Let's say i'm doing 20 mph and it's in (D)rive. As soon as i let off the throttle, the RPM's drop to idle at about 850 RPM. As soon as i give some gas to maintain my speed, the RPM's go up to maybe 1500-2000 RPM and stay there as long as i give it a little throttle. Is this normal? Is this normally how autos behave? I have driven another auto car before (not corvette) that did the same thing. The Corvette is a 2006 Auto. HELP!
Last edited by Kristian Petrovski; 06-01-2019 at 12:17 PM.
06-01-2019, 10:54 AM
#2
Team Owner
Member Since: Aug 2006
Posts: 23,198
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C6 of Year Finalist (appearance mods) 2019
Something is wrong with that car. You DEFINITELY do not need to buy a Corvette.
06-01-2019, 11:00 AM
#3
Safety Car
It’s normal to RPM to drop without any throttle
06-01-2019, 11:17 AM
#5
I found some videos that match exactly what i mean.
On this top video you can see in the 00:03 mark how the RPM's drop to idle as he lets off the throttle
On this bottom video the same happens at exactly the 01:05 mark, notice how the car's RPM's go down to idle as he starts coasting without throttle.
These 2 videos represent the behaviour I'm experiencing, do all vettes do this? Is it something to worry about?
On this top video you can see in the 00:03 mark how the RPM's drop to idle as he lets off the throttle
On this bottom video the same happens at exactly the 01:05 mark, notice how the car's RPM's go down to idle as he starts coasting without throttle.
These 2 videos represent the behaviour I'm experiencing, do all vettes do this? Is it something to worry about?
Last edited by Kristian Petrovski; 06-01-2019 at 02:30 PM.
06-01-2019, 11:27 AM
#8
You can check out the 2 videos i posted above at their respective time-stamps. Imagine having a manual car and you press and hold down the clutch when you let go off the throttle. The RPM's drop down to idle within a second, whereas it will take some time if you're engine braking.
06-01-2019, 11:33 AM
#9
Le Mans Master
Member Since: Jan 2017
Location: Morris County New Jersey
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Kristian, maybe the best thing to do is test drive a couple more C6's. That way you can judge for yourself what is normal or not. Good luck.
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SPSandman (06-01-2019)
06-01-2019, 02:07 PM
#10
Should we tell him, guys?
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Bruze (06-01-2019)
06-01-2019, 02:39 PM
#12
Race Director
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Narddog (06-01-2019)
06-01-2019, 03:28 PM
#13
Pro
I'm apologize to the OP. But guys, this is not a way to treat someone (especially a newbie) that comes to the Corvette Forum looking for help. We were all newbie's at one point or another may have asked a question seemingly something to silly or obvious to everybody else here. That's how you learn. By asking. 
06-01-2019, 05:59 PM
#14
Burning Brakes
You can check out the 2 videos i posted above at their respective time-stamps. Imagine having a manual car and you press and hold down the clutch when you let go off the throttle. The RPM's drop down to idle within a second, whereas it will take some time if you're engine braking.
The first video he is going super slow. What does the Vette do after revving it high and at a high speed? Would need to see a bit more from the Vette in question to see if it is out of ordinary.
06-01-2019, 06:01 PM
#15
Burning Brakes
I'm apologize to the OP. But guys, this is not a way to treat someone (especially a newbie) that comes to the Corvette Forum looking for help. We were all newbie's at one point or another may have asked a question seemingly something to silly or obvious to everybody else here. That's how you learn. By asking.
People answered him and without more information we can't say if it is out of the ordinary or not. Those two videos aren't the car in question and need more sample size than a single drive. And if they are behaving just like he is seeing as well as the auto he drove in a different vehicle, it doesn't seem out of the ordinary.
As mentioned, OP should look at some other Vettes to see if they behave similarly. I don't think it is strange.
Last edited by SPSandman; 06-01-2019 at 06:03 PM.
06-01-2019, 06:20 PM
#16
Not the way to treat someone? Que?
People answered him and without more information we can't say if it is out of the ordinary or not. Those two videos aren't the car in question and need more sample size than a single drive. And if they are behaving just like he is seeing as well as the auto he drove in a different vehicle, it doesn't seem out of the ordinary.
As mentioned, OP should look at some other Vettes to see if they behave similarly. I don't think it is strange.
People answered him and without more information we can't say if it is out of the ordinary or not. Those two videos aren't the car in question and need more sample size than a single drive. And if they are behaving just like he is seeing as well as the auto he drove in a different vehicle, it doesn't seem out of the ordinary.
As mentioned, OP should look at some other Vettes to see if they behave similarly. I don't think it is strange.
And you don't need "more information" to answer him. It's an automatic - the revs drop when you let off the gas as all cars do. THAT'S the answer. No larger sample size. No extra test drives. All automatic Vettes behave similarly.
06-01-2019, 06:22 PM
#17
Race Director
Smokysvette is right. No need to be flippant, dismissive, sarcastic and dickish. If you think that's OK then your friends must not like being around you. No need to treat the new guy like that. Pretty unfriendly to do that.
And you don't need "more information" to answer him. It's an automatic - the revs drop when you let off the gas as all cars do. THAT'S the answer. No larger sample size. No extra test drives. All automatic Vettes behave similarly.
And you don't need "more information" to answer him. It's an automatic - the revs drop when you let off the gas as all cars do. THAT'S the answer. No larger sample size. No extra test drives. All automatic Vettes behave similarly.
06-01-2019, 06:56 PM
#18
If it's not legit, haven't we all learned to ignore it and move on by now? If it's not legit and everyone answers with a-hole answers, that just feeds the trolls and makes them happy so they keep on trolling.
If it is legitimate, then there's no reason to be a-holes.
If it is legitimate, then there's no reason to be a-holes.
06-01-2019, 09:39 PM
#19
Burning Brakes
Smokysvette is right. No need to be flippant, dismissive, sarcastic and dickish. If you think that's OK then your friends must not like being around you. No need to treat the new guy like that. Pretty unfriendly to do that.
And you don't need "more information" to answer him. It's an automatic - the revs drop when you let off the gas as all cars do. THAT'S the answer. No larger sample size. No extra test drives. All automatic Vettes behave similarly.
And you don't need "more information" to answer him. It's an automatic - the revs drop when you let off the gas as all cars do. THAT'S the answer. No larger sample size. No extra test drives. All automatic Vettes behave similarly.
06-02-2019, 05:37 AM
#20
I guess some of you maybe misunderstood me or something. Yea I know that maybe the question did sound silly, but I just wanted to make sure. When driving low to moderate speed in a relative high gear, the tachometer drops to idle (850 RPM) IMMEDIATELY when letting go of the throttle, kinda like i just pressed down the clutch in a manual. Thats what I felt was a bit unusual. I know that the RPM's drop slowly on moderate-higher speeds when letting of gas (aka engine braking). I'lll thank you all for your replys, and I'll se if i can test drive another vette to make sure.