'99 Electrical Problem--Help Needed

[12Ounce]

There's some good stuff above in this string.

In '99 the Windstar circuitry got really "detailed" ( I didn't want to say "complicated"). You really need a roadmap for some problems. You can order a circuit book from Helminc.com for $50 or less ... worth the money. Part number FCS-12255-99.

In the '99 glove box manual, fuse #6 is mentioned. Its in a special holder that makes it easy to disconnect without fully removing it. This fuse eliminates elect loads that you can do without until you find your problem.

The coil of the fuel pump relay gets a constant positive 12 volts, ... but the ground side of the coil is switched by the PCM (gets hairy don't it?). Therefore, the PCM power relay may be causing the fuel pump issue.

And let's not forget the old ignition switch. It's now a black electrical box low down on the steering column. When it starts failing, weird things can happen. Had to replace mine at about 70 kmiles.

[SteveLauben]

I am on a replacement battery purchased 2 years ago. Ive been problem free for a week now. My wife makes several trips per day that are less than one mile. Can this drian the battery over time? Perhaps my charging system is on the week side too. I'll be sure to check back if I run into trouble.

[SteveLauben]

99 died again. Will spend $$ tomorrow at the shop. Will let you know.

[SteveLauben]

spent $$ for new battery. Battery had a intermiten short. Van starts every time now. No more dead battery

[SteveLauben]

I had a new battery put in last week and I no longer have no start/dead battery issues however the still is a relay fuel pump issue. Periodically (with no key in the ignition) the fuel pump pumps constantly and relays/swithes under the hood click continuously. If I so much as sit in the drivers seat it stops. If I get out of the drivers seat it starts. No key, just get in and out of the van. Could it be a faulty fuel level switch? Anyway the battery is so strong we will probably get thru the winter/summer.

[wiswind]

For non-charging issues......check fuse "T" in the engine compartment fuse / relay box.
It is a mini-fuse....and 15 amp.
I've changed that one.......
It will keep a perfectly good battery from charging with a perfectly good alternator. An alternator can blow this fuse when it fails. You put a new alternator in.....and still get no charging action....until you replace this fuse.

For fuel pump.....newer winstars than mine....have issues with the fuel pump relay....which is also in the engine compartment fuse / relay box.
More than a few posts in this forum on the relays in these newer cars failing....and causing no fuel pump operation....and intermittent....very strange symptoms fuel pump operation.

My 1996 has the fuel pump relay, Fan high/low relays, and AC compressor relays in the CCRM (Constant Control Relay Module). The PCM powers the relays..... I have the CCRM replacement information in my pictures at http://community.webshots.com/album/201931518cScpNK

For my '96, they came out with a new and improved CCRM unit that has better sealed relays.
The problem was...in cold weather...you would drive for a while....long enough to get things nice and warm.....stop and shut off the car for about 15 minutes....and come back....engine cranks, no CEL...but no start....due to fuel pump not running......caused by moisture in the CCRM relay(s).
I have not seen posts in this forum on CCRM issues.....so there must not have been many in the past year.