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I think I have A Ignition Problem With my 1990 Ford ...
Sent to Ford Experts May 12 07:31 AM

I think I have A Ignition Problem With my 1990 Ford Mustang GT. As soon as I hook the negative cable up to the battery the motor starts to turn over, without the key in the ignition?? Do you have any suggestions??

 

Optional Information:
1990 Ford Mustang GT 5.0L V-8

Already Tried:
I've tried a new starter relay on the fender wall but i still have the same problem

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Info Request
May 12 8:32 AM (1 hour and 53 seconds later)
         

Have you just replaced the starter solenoid?

Have you done any work recently on the vehicle?



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Reply
May 12 8:35 AM (2 minutes and 24 seconds later)
         
Yes. I've replaced the solenoid last week and it started up fine once. then the problem came back.
Customer (name blocked for privacy)
Reply
May 12 8:39 AM (4 minutes and 29 seconds later)
         
Do you think my ignition switch may be at fault? The motor is turning over by itself when I hook the battery up?? Don't know why though.
Customer (name blocked for privacy)
Answer
May 12 8:42 AM (3 minutes and 1 second later)
         
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You are going to have to replace the starter along with another starter solenoid.

Ford in all their wisdom updated the starters with a starter solenoid on the starter. The solenoid on the fender is now a RELAY. The RELAY was redesigned and is now not capable of carrying the amperage load of the starter. So now you have to replace the solenoid again because the contacts have been welded together. Replace the starter and the relay along with an updated wiring kit (availible from the dealer).

 



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PictureFord Expert -- Shop Foreman, Master Technician -- 99% Positive Feedback on 394 Ford Accepts
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