Hello All,
I have recently joined the Hilux club, purchasing a 2021 SR Extra Cab Chassis model, manufactured in May 2021 and delivered June 2021 in Sydney. I have a MITS Alloy 2100mm Tray and 1800mm Canopy on the back.
The vehicle is presenting some strange engine resonance and vibration issues when sitting within approximately 750-950 RPM. This is also coincidentally where the engine comes to idle when the A.C compressor is engaged, increasing from approximately 600RPM during regular idle. I first noticed this at around 250km's and first thought it was an A.C issue but then realised the resonance is apparent at all times when passing through that Rev range.
The vibration when stationary with A.C on causes some amount of discomfort, vibrating the seats and dash (like a multi-tool) and furthermore I am concerned for the health of the engine.
I have informed the dealer and had them look at it twice now, they have cited the abnormal vibration and tried to point out the large aftermarket tray could be the cause, I do not believe this so, nor has MITS Alloy ever encountered such a issue created from their product. Following this I've got the usual 'monitor until next service and let us know if it gets worse' spiel.
I've checked a couple other peoples vehicles of similar build and manufacture dates and the resonance is not apparent.
Wondering if anyone on here is or has experienced a similar issue?
Thanks in advance!