Question about 1983 Ford Thunderbird

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Heat is not blowing hard

Well at the beginning of January i installed my cd player. And ever since i put it in, my heater is not blowing hard through the vents. I'm not sure if it is clogged of shoving it in there, because there were previous wires from the tape player and speakers. The defrost and floor is blowing when I turn it on just the vents(heat) side. It's very cold outside at least 20 or lower outside and wonder if you have any ideas and please email me ASAP. Thanx.

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  • 424 Answers

Sounds like you have a vcuum leak. recheck the wires to make sure you didn't cut or pull out a vauum hose.

Posted on Feb 02, 2009

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1 Answer

HEATER CORE?


You could have a bad vacume motor or a leaking vacume line .

Dec 27, 2013 | Ford Cars & Trucks

1 Answer

No heat pressure out of vents on hot setting,but blows really hard on cold setting...does blow heat just not hard enogh,good heater core and full of coolant


may be something plugging the heater tube itself, maybe a rodent has set up camp, fan resister works both cold and heat fan speeds, unless they have a resister for cold and hot which I have not heard of.

Dec 10, 2013 | 2000 Chevrolet Venture

1 Answer

There is no heat from heater at engine idle speed.


I have to believe that your thermostat is still sticking....replace it and you problem should go away. Relatively inexpensive fix.

Jan 23, 2013 | Cars & Trucks

1 Answer

Heater fan blows good but only blows cold air. Is it the heater core? The thermostat? How hard are they to replace if i do it myself?


Check the heater core by checking the hotness or coldness of the 2 tubes at the firewall that lead to the heater core.

If both tubes are hot, the heater core is fine. If both tubes are cold, then the heater core is plugged up and will have to be flushed out or replaced.

The thermostat, if stuck open, will delay the heating up of the heater core. It's not hard to replace the thermostat.

Thermostat Removal & Installation 4.2L Engine To Remove:
  1. Before servicing the vehicle refer to the precautions at the beginning of this section.
  2. Remove or disconnect the following:
    • Some of the coolant
    • The upper radiator hose f150_42_thermostat.gif

    • The bolts (A).
    • The water outlet connection (B)
    • The water thermostat and paper gasket assembly (C)
To Install:
NOTE: The water thermostat is indexed and must be installed correctly.
  1. Install or connect the following:
    • The water thermostat
    • The thermostat
    • The water outlet adapter
    • The bolts
      1. Torque to: 80 inch-lbs (9 Nm)
    • The upper radiator hose
    • The coolant
4.6L/5.4L Engines To Remove:
  1. Before servicing the vehicle refer to the precautions at the beginning of this section.
  2. Remove or disconnect the following:
    • Some of the coolant
    • The upper radiator hose f150_46-54_thermostat.gif

    • The bolts (A)
    • The water outlet connection (B)
    • The water thermostat
    • The O-ring (discard)
To Install:
  1. Install or connect the following:
    • A new O-ring to position the water thermostat in the upper intake manifold
    • The water outlet connection onto the upper intake manifold
    • The bolts
      1. Torque to: 18 ft-lbs (25 Nm)
    • The upper radiator hose
    • The coolant
prev.gif next.gif

Jan 28, 2011 | 1997 Ford F150 Regular Cab

1 Answer

Blowing cold air no heat


make sure coolant is in radiator....if its full, thermostat may need to be changed.....if thats not it check heater coil

Jan 03, 2010 | 2004 Pontiac Montana

2 Answers

Blowing hot air


The heater valve on these cars are hard to access. If you are trying to get rid of the heat, a quick solution is putting a valve on the heater hose from the outside. Cut the hose and install a valve in which you can regulate the amout of hot coolant going into the heater core. Since its summer you might as well shut the valve once installed. Winter time comes just open them up again.

Jun 28, 2009 | 1996 Ford Crown Victoria

1 Answer

Problem with front air switching to heat when accelerating


Check for a vacuum leak. WHERE is the magic question.

Mar 26, 2009 | 1999 Lincoln Navigator

1 Answer

Heater blows cold air from top vents after running for 1.3 hours


Sounds like you may be able to fix it by flushing your antifreeze and back flushing the heater core. Some car owners cheep out and put stop leak into the antifreeze, others dont change there antifreeze at all. Both are mistakes.

Mar 05, 2009 | 1990 Chevrolet Lumina

1 Answer

Heater system not putting out hot air


with the engine idling you water temp might not get hot enough to open your thermostat that lets hot water go through your heater core. I would first have the easiest thing changed. the thermostat could be you main problem.I hope this helps you.

Nov 26, 2008 | 2004 Nissan Armada

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