Skip the auto shop - Our mechanics make house calls

Q: Stalling headlights blower on. 1986 Chevrolet K10

asked by on

When my truck was under load with my headlights and the blower on it will stall. It lost all radio presets and everything else. I have replaced the battery, alternator, starter, ignition switch, wiring from the battery to the starter and the starter to the alternator. I have also replaced all the wiring in the air conditioner, heater, electronics, resister and relay, blower motor, and the headlight switch was replaced, too. Do you have any bright ideas or suggestions?

Hello. I know you have replaced quite a bit of parts, but most of the time, this is caused by either the positive battery cable failing, or (more commonly) the fuse box. The fuse box is the most common point of electronic failure on this vehicle that will cause this. I usually remove the fuse box and test it and look for any melted parts. It can also occur in the junction block at the firewall, but that is not as common. If you would like to have this taken care of, consider having a qualified professional, such as one from YourMechanic, diagnose the stalling problem firsthand in order to have this corrected.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Stalling headlights blower on. 1986 Chevrolet K10

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Radiator fan not working when a/c is on.

Your vehicle fan is controlled by two different relays in the engine compartment fuse box. One is for low speed and the other is for high speed. The ECM controls both of the relays. The wires to the cooling fan...

Q: Can you buff or polish a car using a just buffer without having to wax it?

Using a buffer on a car's paint to get out scratches would require the use of a compound liquid to take off some of the paint surface. If you buff too much in one spot, then you will take off...

Q: Wants to stall. At idle and under acceleration

Hi there: If your 1986 Dodge W250 is fuel injected, this issue is commonly caused by an idle control valve or the throttle body which is most likely dirty and simply needs to be cleaned. If it's the carburetor version...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.