What is TPMS?

The Tire Pressure Monitoring System (TMPS) is an electronic system in your vehicle that monitors your tire air pressure and alerts you when it falls dangerously low. This system alerts you with a tire pressure light on your dashboard when a tire needs inflation. It will not alert you if your tires are overinflated. To help drivers recognize the importance of tire pressure safety and maintenance, Congress passed the TREAD act, which requires most vehicles made after 2006 to be TPMS equipped.


Recommended tire pressure ?

We recommend using the tire pressure that the vehicle manufacturer requires. This information is normally written on the inside driver’s door jam. We suggest you do not deviate from this tire pressure. Pressure requirements may change with plus sized tires. 


Low tire pressure?

Tire pressure is tough to judge on sight alone. Tires can be well under 50% inflated before it’s noticeable to the eye. This is why it’s so important to check your tire pressure monthly with an accurate tire gauge. Try to do so in the morning before they’ve been driven on in order to get the most accurate reading. 


What is speed rating?

A tire’s speed rating indicates the speed category (or range of speeds) at which the tire can carry a load under specified service conditions. The speed rating system used today was developed in Europe in response to the need to control the safe performance of tires at standardized speeds.

A letter from A to Z symbolizes a tire’s certified speed rating, ranging from 5 km/h (3mph) to above 300 km/h (186 mph). This rating system (listed below) describes the top speed for which a tire is certified. It does not indicate the total performance capability of a tire. 

Always consult the manufacturer for the maximum speed of Unlimited Z tires. 


For example:

205/60R15 91V

205 = Section Width in Millimeters

60 = Aspect Ration

R = Radial Construction

15 = Rim diameter in Inches

91 = Load Index Service Description

V = Speed Symbol

When "ZR" appears in the size designation with the

service description, the maximum speed is as indicated

by the service description:


Tire Designation Maximum Speed

P275/40ZR17 93W270 km/h (168 mph)

P275/40ZR17 93Y300 km/h (186 mph)

For tires having a maximum speed capability above 240 km/h (149 mph),

a "ZR" may appear in the size designation. For tires having a maximum speed capability above 300 km/h (186 mph), a "ZR" must appear in the size designation. Consult the tire manufacturer for maximum speed when there is no service description.


What is the repairable area of a non-runflat tire?

We only repair tires in accordance with the RMA (Rubber Manufacturers Association) recommended procedures. Some punctures cannot be seen with the naked eye, and other measures are taken to find such punctures (such as soapy water and tire water tubs).We do not repair run flat tires.


Why did my tires wear down quickly?

Premature tire wear may be caused by many factors other than tire rotation. Some examples are as follows: improper inflation, driving conditions, misaligned vehicles, worn vehicle parts and a variety of other reasons.

Without physically inspecting the tires, it is difficult to make a determination as to why your tires wore prematurely. Please visit your nearest Funk Brothers Auto and have one of our trained professionals inspect your tires free of charge.


I only need two tires. Should they be installed in the front or rear?

When replacing only two tires on your vehicle, new tires should always be placed on the rear of the vehicle. 

What do shocks and struts do?

  • Control excessive body and tire movement

  • Reduce vehicle bounce, roll and sway - plus brake dive and acceleration squat

  • Help to maintain consistent handling and braking

  • Help maintain wheel alignment

  • Help to reduce the potential of premature wear on tires and other suspension components

  • Shocks and struts not only improve ride comfort but are necessary for safe handling.

  • Shocks and struts maintain vertical loads placed upon the tires. This helps ensure consistent, firm tire-to-road contact.

  • By providing resistance to vehicle bounce, roll and sway - as well as brake dive and acceleration squat - shocks and struts help to maintain a balanced ride.

Despite what many people think, conventional shock absorbers do not support vehicle weight. Instead, the primary purpose of the shock absorber is to control spring and suspension movement.  

Shock absorbers are basically oil pumps. A piston is attached to the end of the piston rod and works against hydraulic fluid in the pressure tube. As the suspension travels up and down, the hydraulic fluid is forced through tiny holes, called orifices, inside the piston. However, these orifices let only a small amount of fluid through the piston. This slows down the piston, which in turn slows down spring and suspension movement. 

The amount of resistance a shock absorber develops depends on the speed of the suspension and the number and size of the orifices in the piston. All modern shock absorbers are velocity sensitive hydraulic damping devices - meaning the faster the suspension moves, the more resistance the shock absorber provides. Because of this feature, shock absorbers adjust to road conditions. As a result, shock absorbers reduce the rate of: 

  • Bounce

  • Roll or sway

  • Brake dive and Acceleration squat

Shock absorbers work on the principle of fluid displacement on both the compression and extension cycle. A typical car or light truck will have more resistance during its extension cycle then its compression cycle. The compression cycle controls the motion of a vehicle's unsprung weight, while extension controls the heavier sprung weight.

The strut is a common damper type used on many of today's independent suspension, front wheel drive vehicles as well as some rear wheel drive vehicles. 

A strut is a major structural part of a suspension. It takes the place of the upper control arm and upper ball joint used in conventional suspensions. Because of its design, a strut is lighter and takes up less space than the shock absorbers in conventional suspension systems. Struts perform two main jobs. First, struts perform a damping function like shock absorbers. Internally, a strut is similar to a shock absorber. A piston is attached to the end of the piston rod and works against hydraulic fluid to control spring and suspension movement. Just like shock absorbers, the valving generates resistance to forces created by the up and down motion of the suspension. Also like shock absorbers, a strut is velocity sensitive, meaning that it is valved so that the amount of resistance can increase or decrease depending on how fast the suspension moves. 

Struts also perform a second job. Unlike shock absorbers, struts provide structural support for the vehicle suspension, support the spring, and hold the tire in an aligned position. Additionally, they bear much of the side load placed on the vehicle's suspension. As a result, struts affect riding comfort and handling as well as vehicle control, braking, steering, wheel alignment and wear on other suspension.

Tire Recall Search tool.

Safety is the top priority for Funk Brothers Automotive and the U.S. Tire Manufacturers Association (USTMA) and its tire manufacturer members. This tire recall search tool was created to help consumers identify tires manufactured by USTMA members that may be subject to a recall. use link below to search.


Also available is NHTSA's new search tool lets you enter a Vehicle Identification Number (VIN) to quickly learn if a specific vehicle has not been repaired as part of a safety recall in the last 15 years. 



I still have questions?

Stop by and talk with a tire technician. Or, contact us by phone or email. We’d love to hear from you!

Recommendations and estimations provided by Funk Brothers Automotive inc. are based on assumptions and limited information provided by the customer and/or having possession of customer vehicle for a limited time and might not be completely accurate or complete. Multiple visits and repairs might be required. It’s always safest to tow the vehicle in if not sure if the vehicle is safe to drive and to prevent further damage.