Econoline E350 1 Ton V8-5.4L CNG VIN M (1999)
Heater Core: Service and Repair
With Auxiliary Air Conditioning
REMOVAL
NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.
1. If equipped, remove the third, fourth, and fifth bench seats as required.
2. If equipped, remove the trim panels.
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Remove the left center bolster trim panel.
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Remove the quarter trim rear upper panel.
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Remove the lower rear body side trim panel.
3. Remove the heater core cover.
1
Remove the screws.
2
Remove the heater core cover.
4. Clamp off the heater water hoses.
5. Disconnect the heater water hoses.