How To Change A Heater Core Im A 2003 F150 4 Wheel Drive

How to bypass the heater core in 1997-2003 F150

by James Webber

truck speeding downward the street image by Larry Roberg from Fotolia.com

When the heater core fails in a 1997-2003 F150 the truck will begin to bleed antifreeze quickly. This is because the core itself is compromised. Symptoms that indicate cleaved heater core: heater no longer works, cabin of vehicle smells like antifreeze, the windows fog when the heater is running, antifreeze leaks onto the footing or inside the motel, and the engine overheats if it runs for too long. Luckily, at that place is a quick gear up for this problem that does not require a mechanic or replacing the core. This solution is bypassing the heater core past connecting its inlet and outlet hoses together thereby removing the heater core from the system.

Footstep 1

Open the hood of the truck and look on the rider (left) side of the engine compartment. There will be two black hoses (about 1 one/4-inch OD) that run next into the firewall behind the engine. These are the inlet and outlet hoses to the heater cadre.

Footstep 2

Use a knife or scissors to cut the hoses betwixt vi and 8 inches abroad from the firewall.

Stride 3

Take the 2 hoses that are no longer fastened to the firewall and connect them together with the xc caste barbed fitting.

Add the pipe clamps over the ends of the hoses and on the barbed fitting and tighten them. If you commencement the engine and antifreeze doesn't spray everywhere yous accept successfully bypassed the heater core.

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