VIDEO: The Warning Light That Shouldn't Be Ignored

VIDEO: The Warning Light That Shouldn’t Be Ignored

Most cars today have a warning light designed to give a visual signal of low oil pressure. This video is sponsored by FRAM.

Let’s face it – your customers don’t always pay attention to the lights on their dashboard. There’s one in particular that they SHOULD know about and ignoring it could cause severe engine damage.

Most cars today have a warning light designed to give a visual signal of low oil pressure. Low oil pressure is serious, because pressurized oil is necessary to properly separate the highly loaded parts of the engine and prevent excessive wear.

The warning light and oil pressure switch work together – the switch has electrical contacts that are closed when the oil pressure is below 5 psi. When the engine isn’t running and the ignition switch is turned on, the light comes on. Once the engine is started, proper oil pressure will compress the diaphragm in the pressure switch and open the contacts which will cause the light to go off.

If the warning light remains on for more than a second or two after the engine is started, shut the engine off immediately. First, check to see that there’s enough oil in the crankcase. If the light stays on when the oil level is normal, there are a number of possible causes.

• The pressure switch could be faulty

• The wiring between the pressure switch and the warning light could be grounded

• The pump may have lost its prime due to a faulty pump or clogged suction strainer.

• A faulty pressure regulating valve could be dumping all of the oil back into the crankcase.

The oil pressure light is your first signal that there is a problem – failure to investigate the reason will lead to bigger problems.

This video is sponsored by FRAM.

You May Also Like

Fighting HVAC Odors (VIDEO)

The cabin air filter is an integral part of the heating & air conditioning system. Sponsored by The Group Training Academy.

Like many automotive professionals, you might have grown up with cars that were, let’s say, NOT the most current. They may have been a little worn, a little smelly, a little funky.

In most cases, we all learned to ignore and then embrace the smell of old dust, engine odors and whatever may have been dropped who knows how long ago under the seat. New car smell? We loved that old car smell.

Vehicle Emission Particulates (VIDEO)

Cabin air filters can stop exhaust particulates from reaching vehicle occupants. Sponsored by The Group Training Academy.

Auto Pros Go On The Road To ChangingGears

Cincinnati, OH non-profit brings cars and people together to remove transportation barriers, build community.

Auto Pros Team Visits Hybrid Shop of The Carolinas

Auto Pros on the Road puts the Babcox team into shops across the USA. This episode is sponsored by Autolite.

Watch Now: Power Steering Diagnostics Livestream

Watch Andrew Markel and the Summit Racing experts discuss power steering diagnostics. Sponsored by Summit Racing.

Other Posts

Ford F-250 Shock Replacement (VIDEO)

Follow along the step by step installation process of shocks on a Ford F-250. This video is sponsored by PRT.

Creating Parts: The Manufacturing Process (Video)

Creating parts takes many steps worth of work. Sponsored by AP Emissions.

Direct Fit Catalytic Converters Features and Benefits

Four qualities stand out the most when looking at these catalytic converters. Sponsored by AP Emissions.

Engine Control Modules (VIDEO)

Accurate diagnosis of any suspected ECM-related fault is important. This video is sponsored by The Group Training Academy.