My 93 Caprice 5.7 stalled at 203,000 miles; could not restart.
They repaced fuel pump relay and ignition module; could restart, but at stop light it would stall again; they replaced EGR valve. Since then I have replaced Idle Air Control Valve and Fuel Pressure Regulator diaphragm; idle is smoother and more stable, even in gear (at long lights I still put it in neutral which helps). Some say that distributor shaft can be bad on Caprices.
Friday, January 7th, 2011 AT 8:31 PM