2004 Mercury Station Wagon Alternator

Tiny
DUTCHER11
  • MEMBER
  • 2004 MERCURY SABLE STATION WAGON
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 110,000 MILES
When replacing the battery, I got the wrong model and connected the battery backward backwards. The terminals were reversed. The horn sounded and I realized the problem and I disconnected it. After connecting the battery properly, I started the car and the radio wouldn't work. I replaced a blown fuse, the it was fine. Two problems remain.

1) The car heater doesn't produce any heat and
2) the battery is not charging.

I couldn't find any other blown fuses, but there are other square relays/fuses that have four connectors that I do not know how to check. What do you suggest?
Friday, February 5th, 2010 AT 5:56 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Where the positive cable attaches is a solenoid, it has three smaller diameter wires(gague), these are fusible links, the one that protests the charging system may have blown, pull on these wires, if they stretch, they are blown, or use a test light and probe them.
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Friday, February 5th, 2010 AT 7:32 PM

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