GM Tech Tip: Squeaking Noise From The Vehicle Underbody
Some customers may comment that a squeaking noise can be heard from under the vehicle while driving at low speeds.
3 Top TPMS Tips
Tips you can implement quickly to increase customer loyalty and improve the overall profitability at your shop.
Ford Expedition Tech Tip: Stiff Ride And Suspension Warning Messages
On 2014-2017 Ford Expedition models with the Vehicle Dynamic Suspension, the system looks at a lot more than just the height of the vehicle to control the pressure in the air springs and the valving of the shocks. The VDM (Vehicle Dynamics Module) is connected to the high-speed CAN to communicate with other modules like the ECM, BCM and ABS module.
Tech Tip: GM Squeaky Rear Springs On Silverado, Colorado, Express And Savanna
The driver may complain of a squeaking noise coming from the rear of the vehicle. While squeaking is a normal operating characteristic of all weak springs under certain conditions, the frequency and severity of the noise will be present no matter what type of road conditions exist.
Tech Tip: Land Rover Squeal From High-Performance Brake System
On 2014-’17 Range Rover models equipped with the High-Performance Brake Package with 380 mm front brake rotors, the customer may complain of squeal noises when the brakes are applied under light stops.
Cadillac Tech Tip: Engine Stalls After Fuel Pump Replacement
Sometimes you have to hit the road to determine the cause of an issue. Follow along with this Real Fix to see how a stalling complaint was resolved on this 2008 Cadillac Escalade. Model: 2008 Cadillac Escalade 6.2L Cause Confirmed the customer’s complaint and found the engine stalled. Performed a visual inspection of the vacuum
MINI: Electric Hydraulic Pump Failure
While a failed electric hydraulic pump on the 2002-2007 MINI is easy to diagnose, the culprit behind the failure is not. It can be the pump itself or an overheating external fan. Both of these units are located below the exhaust manifold where they are exposed to extreme heat and debris.
Chevrolet Malibu: Fuel Smell and Check Engine Light
What do you do when your Malibu smells like fuel and the check engine light is on? Start with the basics — diagnostic codes don’t always lead right to the faulty part. Follow this Real Fix to see the simple solution to these issues.
Chrysler: Restricted Turbo Oil Line
Turbochargers on 2003-’09 Chrysler PT Cruiser and 2003-’09 Dodge Neon vehicles have a high failure rate due in part to the routing of the oil feed line. Extreme operating temperatures cause the oil to burn and build up inside the line, resulting in restrictions that effectively starve the turbo for oil.
Aluminum Caliper Corrosion Alert
Starting in about 1997, many automakers began to use aluminum instead of cast iron for their disc brake calipers. Aluminum is 65% lighter than iron, and aluminum forgings and alloys can have the same structural strength as iron components. The automakers liked the weight reduction because it helped boost gas mileage. However, they did not count on the problem posed by galvanic corrosion.
Chevrolet Tech Tip: ABS Light On, DTC C1233
Don’t always jump to conclusions. A wheel-speed-sensor-related trouble code does not always mean that the sensor itself is faulty. SureTrack provides multiple possible solutions to one problem. In this situation, the problem is code C1233. Scan over this Real Fix and see if it is the right fix for you.
Solving Brake Noise With the Right Brake Pad and Shim
When a brake pad makes contact with the rotor, it causes the brake pad and rotor to vibrate. This is “ground zero” for all brake noise. If the vibration is transmitted through the brake pad’s backing plate and into the caliper and bracket, this could generate noise the driver could hear if the frequency is between 20- and 20,000-Hz.
