Question about 1999 Chevrolet Silverado 1500

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1998 chevy silverado 1500 heater fan wont come on.

Working on truck earlier. Fan was working prior to work. Left vehcle running and had fan on 5. While looking over engine, started to smell electrical burn.

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  • brasso01 Apr 22, 2009

    1986 firebird heater fan wont come on , fan is ok i tested it direct , dose this car have a relay for the fan ,

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PROBABLY SOME OF THE FAN WIRING WAS PRESSED AGAINST THE EXHAUST MANIFOLD OR SOMETHING ELSE THAT HAS ENOUGH HEAT TO BURN THE WIRING.CHECK THE WIRING FROM THE FAN...BACK.IT MAY HAVE GOTTEN CAUGHT UNDER AN IGNITION WIRE TOO CLOSE TO THE MOTOR.ALSO,CHECK THE FUSE.IF THE WIRING SHORTED,THE FUSE PROBABLY BLEW TOO.

Posted on Dec 12, 2008

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Replace the blower motor .,....

Posted on Dec 11, 2008

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1 Answer

Fan stopped working


bad wiring, dirty or melted fan motor, or if the fan motor smells burnt when you smell it try running a positive and negetive wire down from your battery to the wires to the fan and see if it works if you hook them up for a second if it does start working when you hook the wires from the battery up directly to the fan its means the original wires for the fan are either shorting out or losing connection somewhere

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Heater and aircon not working,loud rattling noise and smoke from vent,now not power to fan


It appears your fan itself burned out. When a field coil of an electrical fan burns out it usually makes a lot of smoke. The noise could be something that fell in there that stopped the fan from turning freely. I can imagine it heated up under the strain and burned out.

When you restarted it was burnt out so hence no noise and no fan.
The smell of the smoke should also be clue. Electrical field coils burning has an awful soury type of smell.

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2003 envoy heater blower does mot work on any speed


The switch on the dash could be defective or look for a module near the heater fan on the fire wall side of the engine dept. Trace the wire attached to the fan motor back to help find the module, check it with your nose to see if it smells burned. You will not mistaken the smell of burned electrical components.

Jan 01, 2012 | 2003 GMC Envoy

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MY 97 kia sportage was over heating alot the thermostat was changed and the radiator flushed it still smells hot so i run the heat in just in case it has not over heated again but the smell bothers me ....


The "smell" is probably old coolant splashed in and around the engine, and radiator fins. When this residue gets hot it really stinks. Try rinsing out the engine compartment and radiator fins with low pressure water. It will go away.

OVERHEATING

Physically look in the radiator under the cap when cool, for coolant level, and check the valve in the cap for sticking. If air is present in the radiator it can't get out, and more coolant can't get in,(from the overflow). Either clean the cap or replace it and check that it is the CORRECT cap.
Radiator fins dirty, clean with a strong stream of water, not high pressure water.
Radiator clogged, have it boiled out, or replace.
Thermostat stuck open or shut, replace it.
Water pump worn out, can no longer move enough coolant, replace it.
Fan shroud broken or missing....
Electric Fan(s) not working, Check the fan, relay, fuse and engine temperature sensor's.
Belt driven fan, belt slipping, fan clutch is bad, fan blades have flattened out.

Air dam under front bumper is gone, loose, or broken. It actually has a purpose other than scraping on the driveway or curbs. It forces air up into and thru the condenser and radiator. If it's loose, airflow can actually push it out of place making it useless or blocking the airflow. Along with that, there may also be a plastic piece attached to the bottom of, and wraps up behind the bumper. If it's loose, airflow can actually push it out of place blocking the airflow. Simply reattach it with 4 or 5 screws.

Also, if the vehicle has A/C and electric fans, one fan is dedicated to the A/C and should come on almost the instant the A/C is turned on. The engine fan will run even with the key off, that is normal. The system is trying to cool itself. Hope this helps.

Aug 25, 2011 | 2000 Kia Sportage

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Car overheated and antifreze was boiling and spewing over until engine cooled. 2004 jeep liberty 2wd. Thanks!


Need to know what caused the overheating, possible broken serpentine belt, thermostat, water pump, radiator, fan clutch, cooling fan motor. After motor has cooled down fill radiator with water till full, look make sure serpentine belt not broke, start engine run about 5 minutes, turn off, let sit 3 minutes, start engine look at temperture gauge is it over half way of gauge, Do you have a fan blade driven by water pump or electric fans?

Feb 10, 2010 | 2004 Jeep Liberty

1 Answer

1998 silverado heater fan no functioning then smoking


look at your blower resistor it will be close to blowr motor. sounds like it got hot and melted connector.

Dec 11, 2008 | 1999 Chevrolet Silverado 1500

1 Answer

Engine runs rough, or dies when the defroster is turned on!


get your heater core checked out. the heater core is right by the blower motor and if its busted it will blow the smell into your car.

Nov 15, 2008 | 2002 Mitsubishi Eclipse

3 Answers

Van chevrolet venture 2000


Fifteen minutes! you have bigger problems than only the fans the fans are controlled by a thermo switch that is heated by the coolant, If you have no coolant the sensor cannot activate But fifteen minutes seems like you may have a headgasket problem and steam cannot heat the coolant sensor.OperationNotesThe electric cooling fan operates when the engine cooling temperature exceeds a certain value. The cooling fan on this engine is controlled by the Powertrain Control Module (PCM) . The PCM turns the cooling fan ON by grounding the coil of the cooling fan relays when certain conditions are met. When the A/C is requested, the cooling fan will also be turned ON.

Power for the cooling fan motors are supplied through Maxifuses(R). The cooling fan relays are energized when current flows from the fuses in the Underhood Accessory Wiring Junction Block, and through the relay coils to ground through the PCM. The Coolant Fan 1 Relay Control Circuit is grounded for low speed fans operation. During low speed fans operation, both fans run at a slow speed. The Coolant Fan 1 Relay Control Circuit is grounded for high speed operation. During high speed fans operation, both fans run at high speed.

IMPORTANT: When certain Diagnostic Trouble Codes (DTCs) are present, the PCM may command the cooling fans to run all the time. Perform the A Powertrain On Board Diagnostic (OBD) System Check prior to diagnosing the engine cooling fans.

For more information regarding the Charging System, refer to Charging System Description , and Charging System Circuit Description in Starting and Charging.

If a problem that involves the low speed cooling fan relay control circuit exists, DTC P0480 Cooling Fan Relay 1 Control Circuit should set. If the problem affects the high speed cooling fan relay control circuit, DTC P0481 Cooling Fan Relay 2 Control Circuit should set. A problem with the ECT sensor should set DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage, DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage, DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage, DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage. Any of these DTCs will affect cooling fan operation and should be diagnosed before using the Electric Cooling Fan Diagnosis.

For more information regarding the Cooling System refer to Engine Cooling Fan Description - Electric, and Cooling System Description in Cooling System.


Here is the electrical schematic and how it all is suppose to work,
If you need any further help please contact me Thank you,Randy If you find this information helpful please give me a good rating

www.aceautomotive1.com

Aug 16, 2008 | 2000 Chevrolet Venture

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