How do I fix error code C1211. My make and model is the 1996 Ford Econoline E-250, 4.9L engine.

On this website you find fuse box diagram and description for Ford Econoline (1996)

https://www.autogenius.info/ford-econoline-1992-1996-fuse-box-diagram/

Is this E-150 econoline?
Engine running, take reading at generator bat terminal, what is it? The basics, take reading across battery terminals, everything off. Take second reading at bat terminals, engine running. The second reading should be higher than the first if charging system is working. Was the charging system checked on the vehicle when the generator was checked out?
There could be a wiring circuit problem? The bat terminal at generator is hot all the time, engine running or off.

I suggest check and download this information from this link 1996-2001-Ford-Econoline-Owners-Manual

Hope this helps (remember to rate and comment this answer).

you might find the fuse diagram on the inside of the fuse box cover under the hood........hope this helps.....cheers

For the 1987 Ford Econoline Van:
Size Engine??
Engine Options (AC/No AC)??

Click on the following direct, Free Link. It has the Serpentine Belt Diagram for your 1987 Ford Econoline Van depending on your size Engine and Engine Options.

Let me know if this helped....

http://www.2carpros.com/car_repair_information/year/1987/make/ford/model/econoline/1987_ford_econoline_drive_belt_routing_diagram.htm

Sorry this one doesn't have a good answer. After 1996 cars use what's called OBD2 (on board diagnostic version 2) This allows anybody to use a handheld scanner to test any car for "check engine" light. But before 1996 each manufacturer had their own OBD. So only the dealer could check it or you would have to buy a specific scanner for Fords only. I have a OBD2 scanner. You might ask your local autoparts store what they have to read your code. Otherwise you have to take to dealer or mechanic that has the right scanner. I wish you well.

Every blink is a number. The code is composed of two numbers. Read the code and check what is wrong on error table code. By example at http://autorepair.about.com/library/images/bl797lib.htm, or you can google for the codes of the SRS. After you know what is wrong it gonna be easy to fix it (I didnt said cheap).

I work for Ford and have never seen this code, but the sensor must be on the fuel rail on the top of the engine, vans have a hot stall/hessitation issue from vapor lock, maybe this is part of the fix.

P1299
Cylinder Head Temperature Sensor Detected Engine Overheating Condition

The freeze plugs can be fixed with the engine in the veicle. There are some rubber plugs available that have a bolt thru the middle. Pry out failed plug, push in rubber replacement, tighten bolt to expand rubber. Fixed.