Tech Tips

Oxygen Sensor Codes

An oxygen sensor code doesn’t always mean a bad O2 sensor. If the computer sets a soft code, this means the SES light doesn’t stay lit and chances are there is something affecting the mixture and the computer is throwing an O2 code. Read More

Float Arm Assembly

When installing the float arm assembly, make sure it is properly mounted to the fuel level sender before installing the pump module into the fuel tank. Read More

No Brakes! What to Do?!

If your brakes suddenly fail, try pumping the brake pedal as fast as possible; this might create enough pressure to apply your brakes. If this doesn't work, apply your parking (emergency) brake as hard as possible to slow the car down. Read More

Keeping Your Battery Terminals Clean

Corroded battery terminals eventually lead to all sorts of trouble including hard starts and worn parts. You should check your terminals for corrosion every three or four months. Read More

GM Replacement Wiring Harness

When installing a replacement wiring harness on a General Motors vehicle, the wire colors on the replacement harness should be matched to the corresponding colors on the vehicle. Do not match up the letters on the harnesses.

Fuel Tank Cleaning

Modern fuel tanks are difficult to clean because of their internal baffling. If a tank can be cleaned, it’s important to use mild detergent and water to remove the dirt. Read More

Removing the Fuel Tank Without a Lift

Siphon the fuel out of the tank to make the tank lighter and easier to handle. If you don't have a lift available to make removing the fuel tank easier...Read More

How to Verify That Dirty Fuel Injectors Are at Fault

First, check your LTFT. If it's high (positive values), then it's probably due to fuel injectors clogged by varnish deposits. Read More

How to Use Social Media to Increase Your Success as a Technician

Social media plays an important role in your success as a technician. We live in a world where information is available anytime at the click of a mouse. Read More

4 Tips You Should Know Regarding Fuel Systems

Always inspect your fuel pump relay when replacing the fuel pump. A worn or damaged relay can cause low voltage. Read More

3 Fuel Pump Tech Tips

Fuel Pump Module Install or Replacement? Make sure when removing or installing a fuel pump module to take extra precautions to not bend the sender arm. A bent sender arm can lead to an inaccurate or non-functioning fuel gauge. Read More

Driveability Problems: Bad Car or Bad Gas?

Having vehicle problems? If your vehicle is misfiring, sputtering or stalling repeatedly, then before you spend hours trying to find something broken, try different fuel. Read More

Release the Pressure in the Fuel Lines

Before you change an injector or a fuel filter, release the pressure in the fuel lines. Remove the negative battery terminal, then place a shop towel under and around the Shrader valve. Read More

Diagnosing a Mild Ignition Misfiring Problem

If you have occasional misfiring, it could be the fault of dirty spark plugs, a faulty plug wire or a weak ignition coil. But if the misfiring isn't bad enough to trigger a code, what can you do? Read More

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