Question about 1999 Jeep Grand Cherokee

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No heating or blowers in car

I have a grand cheerokee 4.7 1999 my heater and blowers no longer work . can any one help im freezing.

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  • Anonymous Dec 14, 2008

    change the heating core



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  • 33 Answers

Check fuses

Posted on Dec 10, 2008


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1 Answer


Most likely your thermostat is A) Stuck open, B) Has been removed, or C) Heater core has been bypassed.

Jan 17, 2010 | 1998 Jeep Grand Cherokee

1 Answer

Heater not working changed the blower motor and still nothing

check your coolant levels/ anti freeze .... if theres no air coming through then check your fuses/relys .... if it just heat and its blowing air then check your thermostat

Oct 25, 2009 | 1998 Pontiac Grand Prix

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2003 grand prix blower control only works on 5, no heat.

you got two diff problems or more poss hvac control head, bad blower resister, bad thermostat, low on coolant, or plugged heater core

Oct 06, 2009 | 2004 Pontiac Grand Prix

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Heater stopped working

check blower motor.. give it a tap when you start the vehicle and turn on the heat.. if it come on then you would have to replace the blower motor..if it does not check for fuse..

Feb 15, 2009 | 2003 Jeep Grand Cherokee

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Heater does'nt work

if the fuses and relays are ok you will probably find its a valve in the heater matrix.

Dec 18, 2008 | 2004 Pontiac Grand Prix

1 Answer

Grand cheerokee with no heat.

this is a blower motor resister it is a cirurite board thay is attched to a wire that plugs in to the blower motor

if this helps you please take a moment and rate my responce

Dec 11, 2008 | 1999 Jeep Grand Cherokee

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