Reggie T

My Mechanic can't fix 99 Taurus LX keeps draining battery with the ignition off, what do I do?

He kept it for 3 weeks and says he ran all kinda load test and other test...and he can hear something clicking but can't find it! This car has already killed 1 battery and is working on a NEW ONE...the wipers sometimes come on every so often...especially when the battery was being jumped off...or sometimes as u go down the road!
The only way...I can drive and crank it now without killing the battery is remove the #1 40 Fuse under the hood each time I cut it off!!!
Please HELP...I'm going on 10 months LAID OFF...this thing is killing me...with only 70K on it!

My mechanic advised against the local Ford Dealership...cause my they don't fix "99 or older"???
He thinks I'm an imbecile...he and I are done son.!!!
I'm not very mechanically inclined by any stretch of the imagination....I need help...I want to fix it and SALE IT FAST.....MONEY PIT!

HELP!!!!

tbird100636

Definetely don't bring it back to that guy. The fuse you are pulling in the underhood fuse block feeds the under dash one. You need to do an ignition off draw test (IOD). It isn't that hard, but you need a digital multimeter that reads Amps., up to 10A. Before you start, open the LF door so you have access to the fuse panel. Take a screwdriver and click the LF door latch into the fully latched position (2 clicks) You loosen the negative battery cable, clip one lead to the negative cable. Slowly remove the negative cable while clipping the other multimeter lead to the negative battery post. Wait about 10-30 minutes.

The reading should not be more than 35 milliamps (0.035A). If it stays over that after 30 minutes start gradually pulling fuses out under the dash until the IOD drops to 0.035A. Whatever fuse drops the IOD the most is the cause of the draw. If you feel comfortable doing this test, give it a try and report back which fuse is the culprit and we'll see what that fuse feeds.

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Master ASE Certified L1 Chrysler Technician- still a Ford fan at heart.
1964 Thunderbird Hardtop- Chantily Beige- 390 FE 4V V8-Uncle's Car
1966 Thunderbird Convertible- Red- 390 FE 4V V8- Uncle's other car- waiting for paint and body work!!!
1967 Mustang Convertible- Blue- 289 V8- helping a friend re-assemble this classic