Can you tell me another website that shows trouble shooting 87 van?

 

There are some websites you can find through a search engine but Best to get a Haynes or Chilton. Both of these have troubleshooting guides for all model vans from the 80s back to the 60s. Decent diagrams and photos depending on what you want to do (Diesel, E100, 150, 250, 350) including engines. Haynes has better electrical schematics

 

Thanks Viking