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You can get the heater core out through the glove box. You need a 1/4" drive racket and 5/16" socket. there are about 10 of these 5/16" screws on the top of vent carrier assembly on the right hand side of the truck. you can reach most of them from under the dash. Take the inside of the glove box out to get the rest. Remove the cover that you took the screws out of. them you can reach in and get at the heater core. Loosen the clamps in the engine compartment and take the 5/8" hose off. It is a little bit of a pain but it will come out through the glove box opening. If you can save the foam that is around the old core. New one doesn't come with one. Or go to Kmart and in the auto section there will be adhesive backed foam tape for sealing toppers, and that works well.

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โˆ™ 2015-07-15 21:41:05
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Q: How do you replace a heater core in a 1992 F150 half ton 4WD 351 automatic?
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