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Old 05-22-2009, 05:20 AM
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Default Bypassing Heater Coil

Hi - I have a 1999 S70, and recently noticed a strong coolant smell when running the heater/air. I brought my car into a mechanic, and they think the heater coil is leaking. They could not tell 100% since they would have to get to the coil to see if it was leaking, but no other leaks seem to be happening in/around the engine. My question is can I simply reroute the heater coil hoses from the engine to the heater coil so they bypass the heater coil, and could I be hurting the engine by doing this? It seems relatively easy to connect a hose from the engine where the heater hose lines start (supply) and connect back to the engine where the heater hose ends (return). I would lose use of the heater, but I never use it anyway. Thanks for answering.
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Old 05-22-2009, 09:17 PM
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You can unplug both hoses from the firewall and put a hose between them and it will be fine and not hurt the engine.
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Old 05-23-2009, 06:31 AM
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Default Thanks, and follow up question

Thanks for the reply - At least I will be able to reroute while I work on replacing the heater coil. Is replacing a heater coil a Do It Yourself project? I heard that the entire dash has to be removed in order to replace the heater coil. Thanks.
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Old 05-23-2009, 08:55 AM
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Yes it is a DIY job.
I the C70 section there is a post about replacing it.
The dash does not need to be removed to replace the heater core.
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1995 Yellow T5-RM running
1996 850 turbo
1994 N/A 5-speed wagon Purple (daughters)
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Old 05-23-2009, 10:19 AM
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however, isnt it true that you have to remove the dash to replace the air conditioning condenser?
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Old 05-23-2009, 10:52 AM
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Yes that is true though.
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1987 Ford mustang LX Coupe 5.0
1995 Yellow T5-RM running
1996 850 turbo
1994 N/A 5-speed wagon Purple (daughters)
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Old 05-23-2009, 10:52 AM
 
 
 
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1999, air, bypassing, changing, coil, conditioning, core, heat, heater, leak, pictures, reroute, s70, v70, volvo


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