Having problems with your 1998 Ford Windstar ?

I have a 98 ford windstar that all of a sudden when i try to start the car the pcm fuse blows, i disconnected the pcm to see if the problem persisted and it did what are some other checks i may try, i was thinking the ignition switch but i have no wiring diagrams

Posted / edited by AnonymousUser on : 10-06-2019

Answers :

Hi, if you're talking about fuse "R", it powers most everything on the engine. What you can do is disconnect everything, put a fresh fuse in, and reconnect things one at a time. After reconnecting something, turn the key on to see if the fuse burns. When the fuse burns, the last thing connected has a short. Here are the things that run on fuse R:
\015\012EGR solenoid
\015\012IAC valve
\015\012intake runner solenoid (this one is on the back of the upper manifold)
\015\012runner position sensors (only on 3.8 liter engine)
\015\012evap purge valve
\015\012all 4 oxygen sensors
\015\012MAF sensor
\015\012all fuel injectors
\015\012cam position sensor
Repair Help & Product Troubleshooting for 1998 Ford Windstar

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