Are diesel vans not popular in the US?

I'm trying to buy a used Ford Transit or a Chevy Express with a diesel engine but there are only a few on the internet and most of them are gasoline vans

2003 Ford Windstar A/C blower is stuck on defrost?

A family friend changed my spark plugs in my 2003 Ford Windstar its a 6 cylinder and since he did that my a/c blower is stuck on defrost. I've googled video fixes on you tube but can't find anything useful. I'm thinking he may have disconnected something when he replaced the 3 plugs in the back part of the engine. Please if someone has a manual (can't find mine) or a link that will show me exactly where to look and possibly fix the problem. Live in Louisiana and its record heat here now so please any input would be appreciated.

What can I do legally to get my vehicle from the dealership?

My question involves a consumer law issue in the State of: North Carolina. Two weeks ago my car broke down on the side of the highway, and my vehicle was towed to a nearby Ford dealership. I did not sign any papers, and my vehicle was taken in. I received a phine call when they finally had time to actually look at my vehicle and I was told it would be 80 dollars for a diagnostic. I was on board thus far. Then my husband called to see if they had made progress on diagnosing my car 3 days after I gave the okay for the diagnostic. *No one had contacted us. The mechanic then tells my husband that we need a brand new fuse block, battery, and alternator. No price was given for repairs or parts, and we were told ni work had been done on my vehicle. The mechanic said he would have to get a used fuse blick from a junk yard because no one has after market fuse blocks. The next day we call to see if the mechanic made any progress, and we were told the alternator, battery, and a few wires were replaced. The work on my vehicle was done and our bill was $903. I gave no permission nor did I sign any papers to authorize the work. Now I can't retrieve my vehicle without the bill being paid. What can I do?

Would an ignition coil cause no power?

I have a 1979 Ford ranchero 302.
No start no crank no radio but I have headlights no dim when I turn the key.
New battery, relay and starter is good.
Trying to determine if it's the ignition coil or ignition switch.
It has started right up a few times but mostly nothing when turning the key.

Ford 302 no start no crank

1979 Ford ranchero 302.
No noise or power when the key is turned. I have strong headlights no dimming but no radio.
Sometimes it will crank right up but most of the time just no life.
The battery is good the solenoid and starter are good.