2013 Isuzu D-Max has developed a shudder at low speeds
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Asked by Dan
Just recently my 2013 Isuzu D-Max has developed a bad shudder at low speed in the rear. It seems to get worse when turning. It jolts and shakes the rear end, kind of like the handbrake is intermittently grabbing or something. Any ideas would be appreciated.
Answered by CarsGuide
6 May 2024This sounds like a rear differential problem. The differential is designed to allow the inside and outside wheel of that axle to rotate at different speeds (which they need to do as the inside wheel describes a smaller arc than the outside wheel in a corner). If something goes wrong inside the differential, that function can be lost and the wheels try to turn at the same speed in corners. When that happens, the rear end will skip and jump about as the two rear wheels effectively fight each other.
Limited-slip differentials (LSD) often have this problem when the clutches that control the amount of lock-up in the differential fail or become worn. At that point, similar jumping and clunking noises can be felt and heard. In some cases, a limited-slip differential can be restored to health with a change of fluid and perhaps an additive, but in other cases, the unit must be rebuilt.
The rear differential in your D-Max should be the limited-slip type, but around this time, Isuzu made the LSD an option, so it would be worth checking. If it’s an LSD, a fluid change would be the first step towards sorting this problem.
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