campsite Report post Posted December 9, 2015 How do you release the hydraulic parking brake on a 1998 Chevy P30 chassis? If the engine does not start, the brake will not release. Share this post Link to post Share on other sites
desertdeals69 Report post Posted December 9, 2015 Have engine running so you have hydraulic pressure. Share this post Link to post Share on other sites
wolfe10 Report post Posted December 9, 2015 If you have further issues and need diagnostic help with your Auto Park, we do have a resident expert who can assist you (free). Will be glad to PM his contact information if you need it. Share this post Link to post Share on other sites
abyrd Report post Posted December 10, 2015 I have owned a couple of motorhomes with the P30 chassis, The hydraulic unit is self-contained and will start and establish pressure with the ignition switch in the run position, once you shift out of PARK the brake will release. The brake is fail safe meaning that the hydraulic pressure hold the brake in the released position, the down side if you loose pressure when driving down the road the brake will engage.. Share this post Link to post Share on other sites
