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Old 02-18-2017, 02:20 AM   #1
New Member
Join Date: Feb 2017
Posts: 6
New member. Question about 2003 Ford F350 School Bus...7.3 Super Duty Engine

Hi all. I am new here. Living in the San Francisco Bay area.
Have been interested in buying a reliable, affordable short - mid size bus to combine live in and travel. Of course mechanically reliable, as good gas mileage as possible, legal, affordable up front cost ( less than $4000 ) and maintenance, durable.

I have been searching craigslist. Found a few of interest.
One is a 2003 Ford F350 School Bus...7.3 Super Duty Engine with Automatic transmission, for $3500. 200,000 miles. Diesel engine, 8 cyclinder.

Another bus I found in cl, is a 1993 Ford 14 passenger bus, 152,000 original miles, gas, automatic, $3,600.

Both seem decent if they are in great condition. Although a longer size is more comfortable, parking ease is also high in priority as I live in urban city areas.

Any suggestions, recommendations, etc are appreciated greatly!

I have never owned a bus before. And no mechanical experience. Previously I had purchased 3 different used motorcycles which were advertised as in great condition, and all were not at all. The least 2 honda nighthawks had issues literally the next day and week after I bought them. Motor blew up on 3rd one within a couple months due to a piston exploding through case from apparently internally leaking oil. So I am very wary about buying another used vehicle. But have heard some good stories of people getting great deals on reliable buses.

Anyway, relative to buses I am hoping to spend less than $3500 for a good quality bus. I have read some of them tend to develop leaks and breaks in the body. Or that the transmission wears out around 200,000 miles.

Any suggestions, recommendations, etc are appreciated greatly!

ocean is offline   Reply With Quote
Old 02-18-2017, 02:52 AM   #2
Bus Crazy
Join Date: Jul 2011
Location: Winlcok, WA
Posts: 2,233
It sounds as if you want a Type 'A' bus.

Generally speaking, if it has a 6.9L or 7.3L it has a pretty good engine. But most of those were hooked to an E4OD or 4R100 transmission. They were pretty bad when they were new and didn't last very long behind a diesel engine. There are some companies that specialize on building those transmissions into reliable transmissions that can handle the power, torque, shaking, and load put on them when they are in a bus or hopped up diesel 1-ton.

If it has the 6.0L, 6.4L, or 6.7L stay away from them as they are disasters waiting to happen that are hooked to the 4R100 transmission.

If it has the Ford 460 V-8 you can't afford to put gas in them. Where the diesels consistently got 11-14 MPG the 460 was lucky to get 6-9 MPG.

If it has the Ford V-10 the transmissions generally didn't have a lot of problems. The engines have some quirks but the different forums have a lot of people who know the work arounds to make those engines really perform. Fuel mileage will be in the 10-12 MPG range.

Most of the GM chassis buses under Type 'A' buses were G-3500 or G-4500 series. Regardless of engine, the transmissions were ALL a lot stouter and more reliable than the Ford transmissions.

The 6.2L diesel is a bit of slug but it is ultra reliable and just keeps plugging along. But at 140 HP it isn't going to get there very quickly. Fuel mileage will be in the 10-14 MPG range.

The 6.5L diesel in the G-series is an orphan that has virtually zero parts support for it. Most of the parts are common to the engines used in the C/K trucks and Suburbans and Hummers but there are a few application specific parts that are made out of unobtainium. And since they are wear parts you could find yourself dead in the water somewhere and no ability to get a replacement part you didn't make yourself.

GM used various gas engines in the G-series chassis. The most common was the 350/5.7L/Vortec 5700 V-8. The newer buses got the 6.0L engine. All of those engines work really well, live a long time, are easy to fix and find parts, and generally got 9-16 MPG depending on a lot of variables but you can pretty much count on 10-12 MPG with them. Very few G-series chassis got the 454/7.4L/Vortec 8100 just because most operators didn't want to spend the extra $$$ for them. And even fewer got the Duramax engine--$14,000.00 option that got 1 MPG better than the gas engine.

Some of the newer buses are showing up with the 5.3L V-8 and even some of them are showing up with the V-6--not bad but a little short on power for a bus.

I do not like the plastic body buses as conversion candidates. I know there are more than a couple of people on here who have done great conversions in plastic body buses. My problem with them is the marriage between the chassis and the plastic body is never that happy and they usually end in really ugly divorces characterized has major water leaks and crazing of the body panels.

The same can not be said about the yellow buses and the yellow buses that were painted white at the factory. The school buses are built to a different safety standard and generally hold up really well over time. I think because of the more rigid construction of the school bus body there is not as much flex in the body that causes most of the problems in the plastic buses.

Here are some you may want to consider:
Chevrolet 1995 Collins

Good luck and I hope you find the bus you want!
cowlitzcoach is offline   Reply With Quote

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