I'm not familiar with these vehicles but drove one recently. It felt like I was getting close to the floor pushing the brake pedal before I was getting good response from the brakes. They were VERY squishy. I wasn't used to this. Is this normal for this vehicle? The owner says the brakes have always been that way but the van has 150k miles on it. I'm assuming it was a slow change that they just didn't notice and it might be time for a brake fluid flush and bleeding.