P30 Step Van HELP!!

Hey Rich. Seem like there's always electrical problems with those step vans. I have owned 3 of them since I started in business 22 years ago and I share your frustration. You're on the right track but the bump you hit answered your question. There's a wire or two somewhere that has the insulation rubbed through and it's shorting to ground. The bad thing about it is there's a lot of lights on these things and the problem could be about anywhere. Hopefully you can put a new fuse in and start wiggling and pulling harnesses. Once you blow the fuse again you're close. Good luck. tmm PS nice truck. Looks like a 16' Grumman body with a Chevrolet chassis.