Question about 1994 Cadillac DeVille

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Heater will not come on and it might come at times.

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Could be bad blower motor, turn heater blower on and try tapping on it if it turns on then a bad motor.you can also test for power at motor.hope this helps.

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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My heater blows cold air 85% of time


You got a bad heater door module most likely or the door itself may have issue.

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98 gmc heater doesn't work all the time


if your heater fan blows all the time when you turn the switch on, then check the heater control valve under the hood right before the heater core. its inline with your heater hoses going into the heater core. the valve opens one way and closes the other way as you turn the switch from hot to cold.

Apr 14, 2013 | 1998 Ford Taurus

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Can you fix a windshield wiper switch and heater core at the same time in a 98 s10?


There not related,so doing the heater core doesn't doesn't make the wiper switch easier.Click here to see.Here's the heater core.

Feb 13, 2013 | 1998 Chevrolet S-10 Pickup

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2009 Jeep Wrangler Unlimited heater core replaced 3 times


if they have replaced it 3 times and still can't get the leak stopped
A. It not the heater core something else is leaking

B. there using a used heater core (which is my opinion is plain . . stupid)
C. the mechanic has no idea what he doing
First thing they should have done when car was brought in the 1st time was check for other leaks if it is the heater core still leaking the mechanic is installing it wrong or not geting hoses tight. the actual changing of the heater core takes only about 10 minutes and actually a easy process that anyone could do. What takes the most time is getting to the heater core because the majorly of the time the whole dash has to come out which takes hours

I would take your car somewhere else and have it fixed right and have them bill the dealership for the repairs

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Kia Sportage 2006 . . heater blower motor resistor keeps failing. heater fan won't run


Have you replace the heater blower motor? It sounds like it is shorted.

Mar 05, 2012 | Cars & Trucks

1 Answer

Heater core removal how much work & time


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Jan 04, 2011 | 1998 Chevrolet S-10 Pickup

1 Answer

Heater does not give out heat all the time


possiblt thermostat, how bad was the cooling system before it was serviced, recmd replace thermostate first, if you still have problem, reverse flush heater core to remove settlement from heater core

Jan 22, 2010 | 1994 Buick LeSabre

1 Answer

The heater takes a long time to warm up and when I


1st thing I would do is have your thermostat checked at a rebutable rad shop also somtimes the rad cores get blocked and will not circulate the heat properly either problem can be rectified at the rad shop...good luck

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Can you tell me what codes 54 and 21 are on a 1995 caravan 3.0 please?


Hello..
Code 21: Is an oxygen sensor Code 54: Is a crank positioning sensor.
Hope this helps!

Dec 06, 2009 | 1995 Dodge Caravan

1 Answer

Ford ka heater blows hot air all the time


Taurus does not use a heater control valve. It runs coolant thru the heater core constantly. You may have a temp blend door actuator problem or a plugged up heater core is also very common. Feel the heater hoses, they should both be very hot, it one is much cooler; you can try to back flush the core.

Mar 26, 2009 | 1999 Ford Taurus

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