I just replaced my speedometer on my 1997 mustang, and now it won't start. The theft light keeps flashing. Someone please help.
Friday, June 4th, 2010 AT 10:31 PM
14 Replies
BLUELIGHTNIN6
MECHANIC
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We answer thousands of questions everyday so Im sorry you feel we are unresponsive
When you say you replaced the speedo, do you mean the entire gauge cluster assembly or just the speedo/tach assembly from the cluster? Is the engine cranking at all or getting no response from ignition switch?
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Monday, June 7th, 2010 AT 7:25 PM
YKKRS
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I just replaced the speedo/tach, cluster. It will crank but won't start.
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+1
Tuesday, June 8th, 2010 AT 12:56 AM
BLUELIGHTNIN6
MECHANIC
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If it's cranking then wouldn't have anything to do with speedo replacement I wouldn't think. Need to make sure fuel pump is coming on and fuel pressure is correct. If OK check spark plugs to ensure they are getting bright blue healthy spark
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Tuesday, June 8th, 2010 AT 3:05 PM
YKKRS
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How would the fuel pump make the theft light flash like crazy?
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Thursday, June 10th, 2010 AT 12:52 PM
BLUELIGHTNIN6
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Didn't notice the anti theft light flashing. First make sure fuses are good, especially the maxi fuses under hood. If OK, try using a different key. If that doesn't work than the original key may need reprogammed as well as the PATS system, that is the anti theft system Ford uses.
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Thursday, June 10th, 2010 AT 1:04 PM
YKKRS
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O.K. I got new keys-pats, reprogrammed keys and still won't start. This theft thingy is driving me crazy.
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Friday, June 11th, 2010 AT 4:28 PM
BLUELIGHTNIN6
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Pull the fuse to the theft system out and try cranking then
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Friday, June 11th, 2010 AT 5:52 PM
YKKRS
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You left out something during your reply. Pull the fuse and?
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Friday, June 11th, 2010 AT 6:15 PM
BLUELIGHTNIN6
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Nope, it's all there on my screen? I posted pull the fuse to the anti theft system and then try cranking engine
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Friday, June 11th, 2010 AT 6:17 PM
YKKRS
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O.K. Tried that, it just cranks
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Friday, June 11th, 2010 AT 6:21 PM
BLUELIGHTNIN6
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If the key is good then the computer must be at fault. Best bet would just be having a diagnostic ran on the anti theft system at local shop
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Friday, June 11th, 2010 AT 7:16 PM
YKKRS
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Is there a way to check a pats key if it's any good? By the way the nearest ford dealership is about three hundred miles from here.
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Saturday, June 12th, 2010 AT 4:23 PM
BLUELIGHTNIN6
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Any local locksmiths around? They could tell you if the key is good or not
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Tuesday, June 15th, 2010 AT 12:18 PM
YKKRS
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Unfortunately there are no locksmiths around here. This thing is driving me crazy, I tried a obd code reader, but it won't read anything.