My wifes 89 Formula (TPI 350, Automatic) has a starting problem. It always turns over and starts for me. About once a month, she turns the key and nothing happens. The dash lights work OK, but the starter motor does nothing. About an hour later, it starts fine. It usually occurs when she has made 2 or 3 short trips.

We have swapped batteries, tried different keys, and she jiggles the shifter with no luck. The motor runs very cool, so I don't think the started is overheated.

Any help is gratefully appreciated.

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89 Red Formula / 350 TPI / 700 R-4 / Flowmasters / Posi and 90 Black Formula / 305 TBI / 5 Speed / Posi

 

Maybe its VATS (vehical antitheft system)..??




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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series Muffler added to Unkown CatBack, Ported Intake

http://www.geocities.com/david_angel_16

 

I had similar happen to my 86 Camaro. It turned out to be a bad fusible link to the starter. It got corroded and sometimes it would allow the electricity to go through and sometimes it would not.

I hope this helps.

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89Iroc, 305 TPI, WC T5, 3.08 Posi, Flowtech Headers, 3 inch over the axle, Flowmaster 80, Aluminium Driveshaft, Ported Plenum, Air Foil, K&N, AFPR, Smog/AC Delete, 3300lbs, All free mods

 

Could be some intermittent thing in the wiring, most likely though it needs a starter. I'd start at the starter.

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"So many Mustangs, so little time..."
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