When i turn on the heat it smell like coolant
Your heater core is leaking anti-boil into the cabin. Either the core or the connections to the core are broken. CAUTION: Anti-boil is poisonous. Whenever working on the system take great care to keep it off your skin and do not allow it to puddle anywhere as dogs and cats are attracted to it as it has a sweet smell. Also, do not work on the system when it is hot as it can cause burns.
Drain anti-boil (wait until car is cool!!) and pull the core. It is located in the HVAC system, bottom right side. You will need to remove a substantial quantity of interior components to do this. Be prepared for some coolant spillage as you remove the core.
Using new hose clamps, install the new heater core, ensuring all connections are secure. Install any previously-removed interior/HVAC components or covers.
Refill the anti-boil through the overflow bottle, leaving the cap off. With the heater set to max heat, start the car, and allow to warm to normal operating temperature. Now slowly fill in the coolant to the specified level until the system is free from air bubbles. Install the cap.
Stop the engine and allow it to cool. Remove the cap slowly, allowing any residual air pressure to be released. Top up the anti-boil as needed, again leaving the cap off. Start the engine and allow it to warm to normal operating temperature. Top up anti-boil again, slowly to eliminate any air bubbles.
You may need to repeat this procedure two or three times until all air is purged from the system.
Oct 17, 2013 |
1999 Volvo V70