- posted
20 years ago
1994 Vortec 4.3 4x4 s-10 blazer runs good cold gets hot and won't start. New plugs wires, cap, rotor,control mdule,feul filter,feul pump. Any Ideas ? Thanks
Tom,
Coolant temperature sensor, located near the waterneck on the intake manifold, 2-wire harness. Tells the computer how warm or cold the engine is and adjusts the A/F mixture accordingly. This might be it IF by saying "won't start" you means it's cranking just not turning over. IF it's not even cranking while hot, starter & wires are likely heat soaked.
Doc
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