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99Pony3.8 · 05-10-2002, 09:27 AM

I would also guess the alternator. I don't know if the 4 banger was carborated in 89, if it is, it could be the carb calibration. Once the car warms up, the idle mixture could be too lean or rich, stalling out the engine. I'd put my money on the alternator, though.

05-10-2002, 09:27 AM	#3
99Pony3.8 Registered Member Join Date: Feb 2002 Location: Atlanta, GA Posts: 44	I would also guess the alternator. I don't know if the 4 banger was carborated in 89, if it is, it could be the carb calibration. Once the car warms up, the idle mixture could be too lean or rich, stalling out the engine. I'd put my money on the alternator, though. __________________ 99 Mustang 3.8L, C&L mass-air system, GT dual exhust and rear bumper, Maximum Motorsports 4-point K frame brace, full length sub frame connectors and strut tower brace.