Question about 1999 Chevrolet Silverado 1500
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.
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
Replace the blower motor .,....
Posted on Dec 11, 2008
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Posted on Jan 02, 2017
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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.
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.
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