Vauxhall Insignia vibration when accelerating
Variant: VXR
Model Year: 2015
Categories:
Engine & Drivetrain
I have a 2015 insignia which vibrates when accelerating, usually around 2k rpm, this does not happen in the winter, only from March to October (15+degC), had new flywheel, driveshafts and fuel sensor but started happening again, can't see how warm engine, brakes, turbo etc. Reacting to 10degC ambient temperature change so presume it some kind of air intake, MAP issue. Any ideas to pass onto Vauxhall before anything else is changed.
Roll on winter!!!
Roll on winter!!!
Posted: Apr 6, 2018 (6 years ago)
Vibration or engine miss fire?
As it's heat related if it were with me I'd start by "graphing" the coolant temperature sensor for possible glitches.
As it's heat related if it were with me I'd start by "graphing" the coolant temperature sensor for possible glitches.
Posted Apr 7, 2018 (6 years ago)
Thank you for your answer 1/4drive, it's more of a vibration, as if your driving too slow in the wrong gear.
Posted Apr 7, 2018 (6 years ago)
Take car into dealership and get it scanned with proper equipment Tech 3
Posted Apr 7, 2018 (6 years ago)
I stand by my first post,
"graphing" is a diagnostic function where the output signal from the CTS can be viewed as a progressive line on the screen.
It ought to be a good smooth progression changing as the coolant heats up.
Now it's quite possible for the signal to "loose" or glitch as the temperature changes.
I've seen complete signal drop out then recover as heated.
The effect of this would be like pulling on the choke nob if your old enough to remember chokes!!
Anyway non invasive test that if nothing else confirms/denies correct air fuel ratio through the temperature range.
"graphing" is a diagnostic function where the output signal from the CTS can be viewed as a progressive line on the screen.
It ought to be a good smooth progression changing as the coolant heats up.
Now it's quite possible for the signal to "loose" or glitch as the temperature changes.
I've seen complete signal drop out then recover as heated.
The effect of this would be like pulling on the choke nob if your old enough to remember chokes!!
Anyway non invasive test that if nothing else confirms/denies correct air fuel ratio through the temperature range.
Posted Apr 7, 2018 (6 years ago)
Not disputing the CTS is worth checking but running Tech 3 will cover so many more parameters . Some listed below ,
http://www.multidiagnostics.co.uk/product/vauxhallopel-gm-mdi-tech-3-oem-level-diagnostics-interface-2/
http://www.multidiagnostics.co.uk/product/vauxhallopel-gm-mdi-tech-3-oem-level-diagnostics-interface-2/
Posted Apr 7, 2018 (6 years ago)
Thank you for your suggestions, I will investigate this with the dealership and post the outcome.
Posted Apr 8, 2018 (6 years ago)
Please keep us updated . Will be interesting to know how this problem is resolved .
Posted Apr 8, 2018 (6 years ago)
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