New Heater Core fits the following vehicles:
New Heater Core - Measures 7 3/8" X 6 1/4" X 1 1/4" - Replaces OEM 1" Core - Inlet And Outlet Fittings = 5/8"
Some vehicles may exhibit (repeat) heater core leaks. This may be caused by a chemical reaction called electrolysis. Electrolysis involves an ion exchange between the heater core and engine coolant which can result in a breakdown of the heater core material. This is similar to the operation of a battery.
Check for electrolysis on any vehicle with a heater core failure. If electrolysis is verified, flush the coolant and follow additional steps as required.
Electrolysis Inspection:If there is a condition of a heater core leaking or repeat heater core leak, check for electrolysis using the following procedure:
- To check for electrolysis use a DVOM set on DC volts. Place the positive probe of the meter in the engine coolant and the negative probe on the negative battery post.
- Adjust engine throttle to 2000 RPM to properly get coolant flow and true electrolysis voltages.
- If more than .3V is recorded, flush the coolant and recheck.