when i go around the speed of 80 km/h the van starts to roumble for 3 seconds. dose anyone know the promblem

most likely just the autoleveler, how else does your van run, how long have you owned it and how many miles?

Check your tire injflation. Have the balance rechecked on your wheel/tires.

Sounds odd if you live in the city, but mud/clay build-up on the rims can cause fits.

Deny