Question about 1991 Ford Thunderbird
Well i have replaced the terminals alternator alternator harness battery now im getting ready to change the engine ground to the batterry because it was corroded and split in many places and in one spot it has been rubbing into the frame
You need a new igniton control, if it is bad your alternator wont charge your battery and you will be sad!!!
i have a 91 thunderbird and it took me days of testing to determine that the OEM ignition control is not built very well and will cause charging problems! go to auto zone buddy yeah!!
Posted on Oct 15, 2008
I have the same problem on my 91 Bird. I have checked with a friend that owns a repair shop. He says when you turn the switch on you need to have the Alt. light to come on before you start the car, if it does not come on (mine does not) it is a wiring problem. That light must come on before the car is started in order to "excite" the Alternator. I am in the process now of taking the dash apart to find the problem of why the light is not coming on. More info later. This may give you a starting point.
Posted on Oct 08, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
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Mar 05, 2015 | 1994 Ford Thunderbird
Several precautions must be observed with alternator equipped vehicles to avoid damage to the unit.
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May 16, 2011 | 2002 Ford Thunderbird
There is a Ford Technical Service Bulletin and Ford Repair Harness Connector Kit that may be your problem.
^ CHARGING - GENERATOR DISCHARGE - LOOSE OR WEAK CONTACT AT GENERATOR HARNESS CONNECTOR ^ WIRING - GENERATOR HARNESS CONNECTOR DAMAGE - LOOSE OR WEAK CONTACT FORD:
1985-90 ESCORT, TEMPO
1986-90 CROWN VICTORIA
1987-93 MUSTANG LINCOLN-MERCURY:
1986-90 GRAND MARQUIS, TOWN CAR
1987-92 COUGAR LIGHT TRUCK:
1985-90 BRONCO II
1986-94 F-150-350 SERIES
This TSB is being republished in its entirety to update the Service Procedure outlined in the Action.
When a generator fails, there are a few failure modes that may cause heat to be produced at the wiring harness-to-generator connector. This excess heat may damage the female terminals on the wiring harness, resulting in increased resistance. The increased resistance produces more heat. When the generator is replaced, the resistance produced by a damaged connector may damage the new generator and could result in a repeat repair, including installation of another generator. High resistance (caused by a damaged connector) will not go away until the damaged connector is replaced. ACTION:
Visually inspect the harness-to-generator connector for damage (heat, corrosion, distortion and cracking) before installing a new generator. Install the Generator Wiring Harness Connector Kit (E5AZ-14305-AA) if the harness-to-generator connector is damaged. The Generator Wiring Harness Connector Kit (E5AZ-14305-AA) contains the following:
^ One (1) Red Wire **** Connector ^ Two (2) Yellow Wire **** Connectors ^ One (1) Wire Connector Assembly ^ One (1) Instruction Sheet (I.S. 6849) PART NUMBER PART NAME
E5AZ-14305-AA Generator wiring Harness Connector Kit
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