My 1997 ford escort wagon lx 2.0 liter stalled and won't start.

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Checked spark using tester at plug good spark Checked for broken timing belt- cranked engine over saw valve springs operating Sprayed starting fluid before throttle body, didn't attempt to start Checked fuses, nothing blown or dis colored Checked all harness and wires didn't find anything loose Plugs and wires replaced in Dec. Timing belt has about 60 k Car stalled after getting gas at 60 mph heard unusual sound before stalling, sounded like an arcing started losing power before it stalled. No alarms Check engine light comes on with all other warning lights when turned to on position. Did notice gas consumption dropped from 30-31 to 27-28 last few days Suspected from running AC. No problems with A/C or cooling fans