why is my car backfiring?

1993 MERCURY VILLAGER
184,000 MILES
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CHRISTINA_PAYNTER
  • MEMBER
  • 2 POSTS
we have replaced catalytic converter, muffler, plugs, wires, oil, filters, distributer, rotor button, and checked all injectors... Check engine light has not come on..nothing has changed... still backfires once it is warmed up and drives only for three miles til it backfires to the poiunt it shuts off....
Oct 3, 2011 at 5:24 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Have you checked the timing? Timing belt? This has an interferance engine which means if the timing belt breaks, you will end up with internal engine damage to the pistons and valves.
Oct 3, 2011 at 5:27 PM
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CHRISTINA_PAYNTER
  • MEMBER
  • 2 POSTS
we had it timed.. they said the belt looked fine
Oct 3, 2011 at 5:29 PM
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