Need help no heat. When I go to turn on the heat all I hear is the actuator door move into position. No air comes out of vents. Same when I press defrost or floor button. We’re do I start ? TY.
Junior Member
Need help no heat. When I go to turn on the heat all I hear is the actuator door move into position. No air comes out of vents. Same when I press defrost or floor button. We’re do I start ? TY.
2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
2003 marauder black 28,000 miles all stock. Garage Queen.
2004 marauder red daily driver.
Public Enemy #1
99% chance its the blower motor resistor in the passenger side of the engine bay mounted to the hvac box. You may be able to kick it online for a while by smacking it with the handle of a screwdriver.
https://www.mercurymarauder.net/foru...l-Module)-Pics
2016 Ford Mustang GT PP - Lund nGauge, BMR vertical links, MGW Shifter, BMR CB005
2004 Mercury Marauder - Eaton M112, Billetflow 3.4, Accufab SBTB + Plenum, T-56 Magnum, 4.10s, Stainless Works LTs, 2.5" Exhaust, Borla Stingers, Ridetech Coilovers + Adj rear shocks, FX-R projectors, Wilwood 13" BNSL6 + FNSL4 BBKs, S55 Gauge Cluster
440rwhp & 406rwtq Tuned by Adam @ Revolution Automotive
2063/3214
(Sold) 2003 Mercury Marauder - Stainless Works LT's, Stainless Works 2.5" Catback, JLT Intake, Mo's Xcal4 Tune
5377/7838
2000 BMW M5 - Evolve Intake, Evolve Alpha-N tune, Stoptech ST-40 BBK, UUC SSK, Dinan front STB, Dinan RSB
1996 Ford Bronco - 4" lift, 35" BFG A/T's, Punisher Valve Body, MH1 Projectors
Junior Member
Sorry to hear about your problem. The HVAC system is a common concern in our cars. I've had hot air blowing out the floor and defrost vents for years. This makes driving in the summer cooking, with the driver being cooked!
But I've also had no heat in the wintertime. Try runninng the EATC (Electronic Auto Temperature Control) module self-test. To enter the self-test, press the OFF and FLOOR buttons simultaneously and then press the AUTOMATIC button. The display will show a pulse tracer going around the center of the display window. This may cause the heat to default into the defrost position.
The following links to old postings may be informative.
https://www.mercurymarauder.net/foru...self-test-info
https://www.mercurymarauder.net/foru...-HVAC-PROBLEMS
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