Your car has a heater control valve to control the flow of coolant through the heater core. Just go to a NAPA and they'll likely have what you are looking for. Stuff you don't disconnect, and wiggle past to install em. I did it in a pinch when the pipe from the heater on my '95 failed, until I could get the core replaced. There are tricks to doing them that will save you time. 6 or 7 hours for a first timer, as you go slow, and try and figure it out as you go. It was a 'J' shaped heater hose from something and I just cut off part of it. If the front heater core works, one far less costly option is to perform a rear heater core bypass. Do em a couple of times and it becomes second nature and you can slam one in in a couple of hours. This is ok during the cool winter months but not when it hits tripple digits in the summer. If you have an air compressor, you can use an airline to push out the remaining coolant and grime within the heater core. Many SUVs and vans have rear heater cores to heat the back of the vehicle. When the heater core fails in a 1997-2003 F150 the truck will begin to bleed antifreeze quickly. I have cut and looped the heater core line to bypass it when my heater core leaked with no issue. A-Team Performance LS LT Heater Core Bypass Delete Hose With Clamps Coolant Crossover Compatible with Chevrolet GM Pontiac LS LSX LS1 LS2 LS3 LS6 LS7 LQ4 LQ9 LT1 LT4. $14.99 $ 14. - Answered by a verified Ford Mechanic. If the heater core is simply plugged, no need to do anything until you change it. Can you bypass the heater core on a 1997 f-150 and how do you do it? We use cookies to give you the best possible experience on our website. 4.8 out of 5 stars 178. If it's a D1 you can put in a 'U' shaped hose to bypass it. if you dont need to use the heater , you can just connect the 2 heater hoses together using a short section of pipe and by pass the heater core all together. This is because the core itself is compromised. Take the hose you disconnected at the firewall and connect it to the block where you disconnected the OTHER hose. I just rebuilt the heater on my '66 coupe and realized that the coolant always runs through the core whether the heater is on or off. Secondly, can you bypass heater control valve? yeah , you can do that .. there is nothing high tech or critical about a heater core all it has to do is not leak. If the heater core is leaking it can still backfeed and leak as the system is under pressure. Symptoms that indicate broken heater core: heater no longer works, cabin of vehicle smells like antifreeze, the windows fog when the heater ⦠The OTHER hose will no longer carry fluid and the looped hose will bypass the heater core and run the fluid in and out of the engine block. Place the airline or hose in the outlet hose from the heater core. If you find that you DO need heat and want to replace the core, there are a few ways that you can install a bypass that will cut the heater core off when desired so ⦠Flat rate techs live by doing stuff the quick way. 99. Drove it like that for about a year. If not, you can use a garden hose for the same purposes. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Heater core bypass How to perform a heater core bypass. Replacing a leaking heater core can cost a small fortune. FREE Shipping on ⦠Get it as soon as Thu, Feb 4. Rear heater core replacement cost You have an air compressor, you can use an airline to push the! It as soon as Thu, Feb 4 do it tricks to doing them that will save you.... Under pressure it 's a D1 you can use an airline to push out the remaining coolant and within... Are tricks to doing them that will save you time OTHER hose core can a! 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