to replace the heater core requires that the dashboard be removed and some parts uder the hood. VERY exstensive job.Might wanna take it in and have it done. about 6 hours,Haynes auto repair manual has step by step instruction. book runs about $20
where is the heater control valve
how to change a valve cover gasket on a 97 mercury grand marquis ?
location of heater control valve on 2005 mercury marguis ?
take it to the dealer
NO belt in the 302cid engine of a 1988 Mercury Grand Marquis. it is a chain with gears
Mercury Grand Marquis was created in 1983.
You must remove the dash.
( 5 quarts with filter change ) according to the 1999 Mercury Grand Marquis owners manual
( 6 quarts with engine oil filter change ) according to the 2003 Mercury Grand Marquis Owner Guide
heater core is leaking.
You are likely in an antarctic region.
Heater core leaking.