Anyone having this problem. It is like a rattle and you can hear a noise as it changes to the V8 mode from the V4 mode.
Question V4 to V8 noise under light acceleration
- Thread starter Jerrys Vette
- Start date
My first thought was get the triple flush but I see in your other post you have already done that.
Time to get a Range device made by Range Technologies to keep the car in V8 mode all the time.
Time to get a Range device made by Range Technologies to keep the car in V8 mode all the time.
- Thread starter
- #3
Thanks. The car is still under warranty and I am trying to get opinions to submit to the dealer. They seem to be at a loss as to how to correct my problem.
My car never changes from V8 to V4 mode because I never use Eco.. You can get an aftermarket gizmo if you like or just never turn the dial to Eco. Problem solved. JMO
Eric, this only works on the manual cars. The Automatic goes into V4 mode whenever it's under light load, regards of mode settings.
Ouch. I did not know this. That's sorta weird actually. Surely GM engineers could have run the V4 switch over through the Eco mode. So what does Eco mode do when you turn the knob to Eco? Or do you even have an Eco control setting in an auto?
According to owners manual "Eco keeps the engine in 4-cylinder mode unless heavy acceleration is needed', as opposed to all other modes "The engine uses 8-cylinder mode when accelerating, but changes to 4-cylinder mode when coasting".
If it is in fact an A8, you have three options: Manual shift with paddles keeps it in V8 mode, get yourself a Range Device or have it tuned. A tune you obviously do not want right now with you still being under warranty.
I bought a Range device even before I took delivery of my '19 Z after reading all the issues with the A8 and the dreaded vibration. It's been flawless so far after 7k. Buy it directly from Range so you get the latest and correct software.
- Thread starter
- #10
I guess the Range device is the answer unless I keep the car in manual mode and shift gears. Anyone know if the dealer (GM) can disable this feature through the ECM??
Jeffer2013
Power User
home on the RANGE
domt know what the RANGE is on a full tank of gas
my wife cooks on a RANGE
get it, got it GOOD
domt know what the RANGE is on a full tank of gas
my wife cooks on a RANGE
get it, got it GOOD
Range Technologies will no longer ship to Canada.
I had to use another supplier on Amazon to get my 2nd one.
Jerry would like to have this solved by GM.
So places the problem could be are torque tube, torque converter, transmission....and who knows what else.
I had to use another supplier on Amazon to get my 2nd one.
Jerry would like to have this solved by GM.
So places the problem could be are torque tube, torque converter, transmission....and who knows what else.
Jeffer2013
Power User
do u really think gm will make any reasonable attempt to solve this problem
hahahahahahahahahahahahahaha
Jeffer2013
Power User
there is a place in Canada that sells them
will not post as they are not a sponsor
Your best bet would be to do some more research. Google 'tune out V4 mode C7 Corvette'. There's a lot of threads on the US Corvette Forum and more. Some good info there.
Jeffer2013
Power User
just for the record I did not contradict you
There is a non-Amazon vendor in Canada, that is all
we are both in agreement and both just trying to help
sometimes clarification or additional info comes acr as something different
and yes I like to joke around a lot, makes people smile
- Thread starter
- #19
Just an update. Talked to the dealer yesterday and the told me they can not disable the V4 to V8 option and they also directed me to the aftermarket Range unit. Will look into it. Any problems with this unit once you plug it into the car??
Jeffer2013
Power User
no problems at all
get the latest version
‘quicker acceleration as no hesitation
no tach bounce
does not leave a trail when you take car in for maintenance
there is only 1 drawback that I know of
WHY DID CHEV NOT FIX THE DARN PROBLEM TO BEGIN WITH STUPID CLOWN SHOW ON THEIR CENTERPIECE CAR