Custom Cab apparatus question?
Hello, I have a question about custom cab apparatus. Our area is rural and almost all of our surrounding companies have commercial cab fire trucks. However, through fema grants, two of our neighboring companies have received new custom cab trucks. I have driven both new units. One is a 2007 Spartan MetroStar engine/tanker with a Smeal body (1700gal, single axle), the other is a 2010 Spartan MetroStar engine/tanker with a Smeal body (3500gal, tandem axle). The question is, why do both units "hop" so bad when the throttle is applied? The front end just hops up and down and then your foot starts to hop on the throttle and it gets worse. The only way to stop this is to completely floor it all the time, which is slightly hazardous on icy/wet roads. Just wondering if all custom cabs do this, or is it a case of improper weight on the front axle? I drive commercial trucks of all different types everyday and have never encountered this. Thanks for the input.