One problem related to brake fluid leak has been reported for the 2003 Chevrolet Astro. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Astro based on all problems reported for the 2003 Astro.
Complete brake failure due to rusting brake lines. The previous day this vehicle was pulling a small trailer on a michigan interstate highway. The following day it was parked in my driveway and a wet area was visible on the concrete. It was brake fluid on the ground that had dripped from the rusted brake line and drained the master cylinder reservoir. I discovered this when moving the vehicle to try and determine the cause of the fluid leak. The brake line had completely rusted through! fortunately this did not happen the previous day as it could easily have been fatal. The vehicle was towed to the gm dealership. There are no replacement parts for the brake lines and none are available in the aftermarket. The dealer wanted over $1700 to replace the lines and said there may be more items to replace - possibly another $700 or more. Plus, fuel lines were also rusting and they should be replaced too. This could easily have been a fatal incident or extreme damage as the brakes were completely useless in my driveway and I had to put the vehicle into reverse to stop it, even at a very slow speed. I have had other vehicles for a much longer time - including gm - and never had anything like this before.