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?

A: Hello. I know you have replaced quite a bit...

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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Struggles to start, interior blowers turn on by them selves and central locking issues

Hello. From what you describe it would appear that your vehicle is experiencing a few different issues. Intermittent hard starting can be caused by many things. If nothing is happening when you turn the key, then it is possible that...

Q: Won't shift out of first unless you let go of gas but it will shift back down and never grab second

If you have all the drive shafts in the front and rear, then you will damage the transfer case or one of the axles if you drive the vehicle and engage the front end. The two different gear ratios will...

Q: Gas tank seal from the filler neck hose.

The nozzle I believe your are mentioning is the anti-siphon and roll-over check valve. It does not require a perfect seal to the tank. The rubber filler hose slides over it, sealing in fuel vapors. I hope this helps. Put...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...