I have a 2008 grande marque, thats blowing hot air only when I turn on air conditiong> I did not run air conditioning for a while using heater only. The heater will not switch over to cold air will I lower temperature.

Asked by Feb 04, 2013 at 05:11 PM about the 2008 Mercury Grand Marquis LS

Question type: Maintenance & Repair

1 Answer

19,025

deveter flaps sticking,let on for time, may break loose, unless you lost the vacuum to the heater unit from under hood intake hose

3 out of 3 people think this is helpful.
Best Answer

Your Answer

Add photo

Related Questions

Search Mercury Grand Marquis Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,030
#2 kbro
kbro
Reputation 2,030
#3 Js08016
Js08016
Reputation 1,580
View All

Related Models For Sale

Used Ford Crown Victoria
3 Great Deals out of 1,394 listings starting at $1,700
Used Lincoln Town Car
37 Great Deals out of 2,144 listings starting at $1,995
Used Chevrolet Impala
890 Great Deals out of 35,184 listings starting at $1,700
Used Dodge Charger
470 Great Deals out of 30,145 listings starting at $2,275
Used Ford F-150
3,035 Great Deals out of 207,199 listings starting at $1,990
Used Cadillac DTS
55 Great Deals out of 1,831 listings starting at $2,100
Used Chrysler 300
472 Great Deals out of 22,558 listings starting at $1,000
Used Chevrolet Tahoe
857 Great Deals out of 27,925 listings starting at $1,700
Used Honda Accord
994 Great Deals out of 74,838 listings starting at $899
Used Ford Taurus
304 Great Deals out of 21,172 listings starting at $1,500
Used Toyota Camry
1,184 Great Deals out of 95,062 listings starting at $1,250

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
6 Great Deals out of 121 listings starting at $2,999
2009 Mercury Grand Marquis LS For Sale
4 Great Deals out of 96 listings starting at $2,995
2008 Mercury Grand Marquis LS For Sale
3 Great Deals out of 100 listings starting at $2,995