Other

How long does EDR information last?

How long does EDR information last? In this type the data is volatile and is stored for only 250 ignition cycles which is usually about 3 to 4 weeks of normal driving activities. The second type is a deployment event. How is airbag activated? When the frontal airbags are to deploy, a signal is sent to the inflator unit within the airbag control unit. An igniter starts a rapid chemical reaction generating primarily nitrogen gas (N2) to fill the airbag making it deploy through the module cover. What should I know about my air brake system? -Brakes need adjusting, lubricating...
Other

Why does my car vibrate at high speed?

Why does my car vibrate at high speed? You would notice a problem with the tire balance when driving at a speed between 55 and 65 mph. However, at a higher speed, the vibration is no longer felt. 3. Brake Problems If the car vibrates when applying brakes and you are feeling it in the steering wheel, the problem is most likely with the car’s front brake mechanism. Why does my steering wheel vibrate when I go over 50 mph? Be sure to have the rotor checked and skimmed or replaced completely if needed. A worn out or rusted brake...
Common questions

What to do if your hot water heater is not working?

What to do if your hot water heater is not working? Check this just to make sure this small fix isn’t the issue. If that isn’t the case, test whether the water heater is undersized by first checking to see if the heater has 75% capacity of hot water. Then, turn off the water supply and turn on a hot water faucet to see if water still flows. If it does, look for a crossed connection. Why does my gas heater keep shutting off? Technicians can recalibrate the thermostat or take care of other repairs so it operates the heater...
Easy lifehacks

Can you hammer on a harmonic balancer?

Can you hammer on a harmonic balancer? Hammering the balancer on now isn't going to do anything to the bearing. You may have damaged the balancer however. Warming the balancer up as F-Bird says is the easy way to do it. I add Never-seize to the bore and crank so it can be removed later if necessary. Do you have to torque the harmonic balancer? The only way to tighten the harmonic balancer bolt properly is to lock the motor up somehow and tighten it with a torque wrench to the correct tension. Which means usually wedging the flywheel some...
Easy lifehacks

What to do if your alternator is over charging the battery?

What to do if your alternator is over charging the battery? Ask an assistant to start the engine and hold engine speed at about 1500 RPM. Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. What happens if the alternator is not working? The alternator charges your battery while you drive. If your alternator fails, your battery doesn't charge and eventually dies. How long will a...
Most popular

Can you change the battery on a C4 Corvette?

Can you change the battery on a C4 Corvette? Unfortunately, Chevy decided to follow suit with the old C4 Corvettes. I needed to change the battery and as I looked at it, it wasn't immediately obvious how to do it so I decided I'd add a post just in case anyone wanted to know. Can you change the battery on an old Ferrari? To change the battery on my old Ferrari Mondial Cabriolet, I had to remove the entire front end and one of the fenders. In fact, every time something has been easy on one of our BMW's, I...
Easy tips

Why do I get false ABS at low speeds?

Why do I get false ABS at low speeds? The rust forces the sensor away from the reluctor and it cannot properly detect proper ABS braking conditions, so you get false ABS activates at low speeds. The process or rust moving the sensor is called “rust jacking,” since the force of the rust moves the sensor upwards. To test the sensor, connect a digital voltmeter to the sensor connector. What to do if your ABS sensor is distorted? Check the sensor for flatness in multiple (minimum 3) positions/directions. If the sensor head is distorted, replace the sensor. Apply (spray) two...
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Which way should fuel filter face?

Which way should fuel filter face? However, most filters contain an arrow that points in the direction of the fuel flow. For proper installation, this arrow should point towards the carburetor. If there is no arrow on the new filter, Briggs & Stratton recommends placing the larger end towards the fuel tank. How do you change the fuel filter on a Chevy 1500? Slide the fuel filter out of the round bracket from front to back. Slide the new fuel filter into the bracket from the rear of the bracket with the arrow on the fuel filter facing the front...
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What kind of harness does a GM engine use?

What kind of harness does a GM engine use? Harnesses are available for engines using Computer Controlled transmissions, automatic 4L60E / 4L80E and Allison Automatics, and 5 and 6 Speed Manual Transmissions with a factory Vehicle Speed Sensor. What kind of wiring harness does a LS engine use? These are the Wiring Harnesses that we use on our Customer's Cars in our Southern California shop. Computer Outputs include an OBD II Diagnostic Port for LS based engines, or a scanner port for LT1 and earlier, an electronic Vehicle Speed signal, a Tachometer signal wire, and where appropriate, Converter Unlock. Can...
Easy lifehacks

How do you know if your brake booster is bad?

How do you know if your brake booster is bad? Symptoms of a Bad or Failing Vacuum Brake Booster Check ValveBrake pedal is difficult to engage. When the vacuum brake booster check valve is working correctly, applying pressure to the brake pedal is easy and very smooth. Brakes feel spongy. Brakes stop working. What does it mean when your brake pedal goes to the floor? The booster is a mechanism that uses vacuum pressure to take the force being applied to the brake pedal and amplify it. If the booster is bad, then the full amount of force needed to...