Isuzu D-Max 2012 Problems

Any time you have a grinding noise from the driveline of a car, it’s time to have it checked out. That’s because continuing to drive it in that condition might cause more damage than was already there. Grinding sounds from the area of the transmission can indicate worn bearings in the gearbox which, if caught early enough can sometimes be replaced without resorting to a complete transmission replacement. Even so, it will be a big job as the gearbox will need to be removed and pulled apart.

You may also find while you’re inside the transmission that there’s other wear that needs to be addressed, at which point the decision becomes whether to repair or replace. You can buy a reconditioned transmission from a specialist shop, or a second-hand one from what was once called a wrecking yard. If you do the latter, make sure the used gearbox has been tested and comes with some sort of warranty. The cost of a replacement could be anywhere from $1000 to $10,000 depending on what you buy and where you buy it from.

It's a common complaint about diesels since we went to common-rail engines. Some claim it can be fixed be recalibrating the computer, others say the injectors need replacing. Consult a diesel engine expert.

It would suggest it wasn’t the throttle position sensor that was faulty, but it could be a connector to the sensor that has caused the problem. If that isn’t the problem look elsewhere, and I would suggest the crank angle sensor.

I would suspect there’s a problem with the turbocharger, have a diesel mechanic check it for you.

We haven't had any other reports of this problem; so suspect it's related to your car. I would suggest that you talk to your dealer and request the help of Isuzu head office to fix it once and for all. I would also ask for a temporary loan vehicle while they sort out the issues with yours.

Isuzu spokesman Dave Harding replies: Isuzu Ute Australia values all customer feedback. Our service team has confirmed with Mr Cooke his vehicle is not defective and that the phenomenon he was experiencing is in fact a characteristic and in no way detrimental to the safe operation of his motor vehicle".

It’s average, both in terms of price and kilometres travelled, for that model. If it’s been well serviced and is in good condition it would be worth considering.