Thread: 78 1/2 F150 Ranger XLT 4x4 400 B/B
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Old 11-10-2005, 09:20 PM
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danlee
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A tune up, new filters etc.

Check the thermostat. If the motor is running too cold, it will use more fuel.

Replace the timing chain with an aftermarket set, and install the chain 'straight up'.

Rebuild it with 9.0:1 Compression Ratio.
 
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