tire pressure
Computer tells me that left rear is 25psi and I should inflate to 29psi. Tried to inflate but tire would not inflate. I don't hear a leak; pressure holding at 25psi. Is valve stem failing? Thanks very much. randy 2013 SRT Viper GTS

Has the 2015 Viper been tamed, or elevated, or whatever it's called when a car loses its way and becomes just another Sunday cruiser for gentlemen who want an insanely fast car to make the morning coffee run? No: The Viper is the real deal. Don’t believe any rumors you may have heard about the 2015 Dodge SRT Viper. Yes, it's true that Dodge SRT has added some new creature comforts to the Viper, but they have not deleted any of its elemental (or "mental") personality. This vehicle remains a thumb in the eye to any fancy-pants, hybrid supercar on any track, at any time.
SRT’s original Viper formula remains in place today: A V10 engine mounted up front drives the rear wheels of this low-slung track animal. A manual 6-speed is the only way to get your Viper, as no automatic transmission is offered. For what it can do, the Viper was always a value of sorts, but it became even more so in 2015, when the price dropped about 20%. The Viper is not a drag racer, but very few sub-$100K cars can beat its 3-second sprint to 60 mph. Factor in the price range, and the cars that match it straight ahead can be counted on one hand. Now instead of just straight ahead, add some turns, and you'll need only a few fingers to count the cars that can hang with this beast on a road course.
The current-generation Viper started as a model-year 2013 vehicle. For 2015, the Viper receives a few notable changes. First and foremost, its 8.4-liter V10 receives a 5-hp bump to a total of 645. The other changes are the entry of two new trims and some new color packages.
The first new SRT Viper trim offered is the GT. This new package includes a driver-selectable Bilstein suspension and upscale interior, which buyers previously found only on the fully loaded GTS trim level. The suspension features DampTronic shocks with both road and track settings. The interior upgrades include Nappa leather with Alcantara inserts and offset stitching.
The second new trim is the 2015 Viper TA 2.0 Special Edition. TA stands for Time Attack; this is a racecar tuning package for your Viper, direct from the factory. The 2015 version improves upon prior TA packages by adding more downforce from the aero kit and—SRT points out—the brakes are specifically dialed in to offer reduced thermal saturation for track days. SRT isn’t kidding around when it says this is a car ready for track work. The seats are fiberglass shells covered with ballistic cloth material from Sabelt, and are ready to accept your three- or six-point racing harness.
For 2015, SRT will also build 40 Ceramic Blue Edition Package Vipers. The package includes a unique blue paint with black stripes, “Rattler” wheels finished in Black Vapor Chrome, and interior trim fitted with Alcantara and carbon fiber.
SRT will also paint your Viper with a special three-coat system that produces a “liquid-mercury” effect, resulting in accentuated curves on the car. Stryker Purple and Y’Orange colors are offered with this unique paint treatment. However, it should also be noted that SRT will hand-paint your Viper one of 8,000 custom colors if one of the two highlighted color schemes is not to your fancy.
In addition to the two trim packages and new color package options, the 2015 Viper also trims 25 pounds from the engine for 2015, and sixth gear is revised to offer a quieter cruise on the highway. However, this doesn't diminish the Viper’s track capability, as drivers would be stretched to find a road race that requires use of the top gear.
Like many exotic cars, the 2015 Dodge SRT Viper is a model in which the buyer takes part in a design process. Serious shoppers would be wise to work with an SRT dealer rather than try to configure a car entirely from online information.
Computer tells me that left rear is 25psi and I should inflate to 29psi. Tried to inflate but tire would not inflate. I don't hear a leak; pressure holding at 25psi. Is valve stem failing? Thanks very much. randy 2013 SRT Viper GTS
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags
Audio System
Antenna Type: diversity · Voice recognition audio system · Auxiliary audio input: iPod/iPhone integration · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Touch screen display radio · Satellite Radio: SiriusXM · Total Number of Speakers: 12 · 900 watts
Brakes
ABS: 4-wheel · Front brake diameter: 14.0 · Front brake width: 1.3 · Front brakes: ventilated disc · Premium brakes: Brembo · Rear brake diameter: 14.0 · Rear brake width: 1.3 · Rear brakes: ventilated disc
Comfort Features
Dash trim: leather · Door trim: vinyl · Floor Mat Material: carpet · Floor Material: carpet · Floor Mats: front · Parking brake trim: leather · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Assist handle: passenger side · Center console: front console with armrest and storage · Cupholders: front · Dimming rearview mirror: auto-dimming · Multi-function remote: trunk release · One-touch windows: 2 · Power outlet(s): 12V front · Reading lights: front · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio · Vanity mirrors: dual illuminating
Driver Seat
Manual adjustments: 6
Drivetrain
Axle ratio: 3.55 · Limited slip differential: rear
Engine
Alternator: 180 amps · Battery: maintenance-free
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: alloy · Front bumper color: body-color · Grille color: black · Mirror color: body-color · Rear bumper color: body-color · Rear spoiler: lip · Rear spoiler color: body-color · Window trim: black
Headrests
Front headrests: integrated · Number of front headrests: 2
In Car Entertainment
Infotainment: Uconnect · Infotainment screen size: 8.4 in.
Instrumentation
Fuel economy display: MPG · Warnings and reminders: turn off headlights
Lights
Headlights: HID · Tail and brake lights: LED
Mirrors
Exterior mirrors: power
Passenger Seat
Manual Adjustments: 6
Safety
Camera system: rearview · Rearview monitor: in dash
Seatbelts
Emergency locking retractors: front · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Seatbelt warning sensor: driver and passenger
Seats
Driver seat manual adjustments: height · Front seat type: bucket · Passenger seat manual adjustments: height · Upholstery: cloth
Steering
Steering ratio: 16.7 · Turns lock-to-lock: 2.4
Suspension
Front Arm Type: upper and lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Arm Type: upper and lower control arms · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Stabilizer bar(s): rear
Telematics
Navigation system: touch screen display · Phone wireless data link: Bluetooth
Tires
Type: performance
Tires and Rims
Wheels: polished aluminum
Wheels
Wheel spokes: 5
Windows
Front wipers: variable intermittent
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags
Audio System
Antenna Type: element · Voice recognition audio system · Auxiliary audio input: iPod/iPhone integration · Single disc in-Dash CD · MP3 player: CD MP3 Playback · HD radio · Satellite Radio: SiriusXM · Total Number of Speakers: 12 · 900 watts
Brakes
ABS: 4-wheel · Front brake diameter: 14.0 · Front brake width: 1.3 · Front brakes: ventilated disc · Premium brakes: Brembo · Rear brake diameter: 14.0 · Rear brake width: 1.3 · Rear brakes: ventilated disc
Comfort Features
Dash trim: leather · Door trim: vinyl · Floor Mat Material: carpet · Floor Material: carpet · Floor Mats: front · Parking brake trim: leather · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Assist handle: passenger side · Center console: front console with armrest and storage · Cupholders: front · Dimming rearview mirror: auto-dimming · Multi-function remote: trunk release · One-touch windows: 2 · Power outlet(s): 12V front · Reading lights: front · Steering wheel: tilt-adjustable · Steering wheel mounted controls: phone · Vanity mirrors: dual illuminating
Driver Seat
Power adjustments: 6
Drivetrain
Axle ratio: 3.55 · Limited slip differential: rear
Engine
Alternator: 180 amps · Battery: 600 CCA
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: alloy · Front bumper color: body-color · Grille color: black · Mirror color: body-color · Rear bumper color: body-color · Rear spoiler: lip · Rear spoiler color: body-color · Window trim: black
Headrests
Front headrests: integrated · Number of front headrests: 2
In Car Entertainment
Infotainment: Uconnect · Infotainment screen size: 8.4 in.
Instrumentation
Fuel economy display: MPG · Warnings and reminders: low fuel level
Lights
Headlights: HID · Tail and brake lights: LED
Mirrors
Exterior mirrors: power
Passenger Seat
Manual Adjustments: 6
Safety
Camera system: rearview · Rearview monitor: in dash
Seatbelts
Emergency locking retractors: front · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Seatbelt warning sensor: driver and passenger
Seats
Driver seat power adjustments: height · Front seat type: bucket · Passenger seat manual adjustments: height · Upholstery: leather · Upholstery accents: faux suede
Steering
Steering ratio: 16.7 · Turns lock-to-lock: 2.4
Suspension
Driver Adjustable Suspension: ride control · Front Arm Type: upper and lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Arm Type: upper and lower control arms · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Stabilizer bar(s): rear · Suspension control: electronic
Telematics
Navigation system: hard drive navigation system · Phone wireless data link: Bluetooth
Tires
Type: performance
Tires and Rims
Wheels: polished aluminum
Wheels
Wheel spokes: 5
Windows
Front wipers: variable intermittent
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags
Audio System
Antenna Type: element · Voice recognition audio system · Bluetooth auxiliary audio input · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Touch screen display radio · Satellite Radio: SiriusXM · Total Number of Speakers: 12 · 900 watts
Brakes
ABS: 4-wheel · Front brake diameter: 14.0 · Front brake width: 1.3 · Front brakes: ventilated disc · Premium brakes: Brembo · Rear brake diameter: 14.0 · Rear brake width: 1.3 · Rear brakes: ventilated disc
Comfort Features
Dash trim: leather · Door trim: vinyl · Floor Mat Material: carpet · Floor Material: carpet · Floor Mats: front · Parking brake trim: leather · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Assist handle: passenger side · Center console: front console with armrest and storage · Cupholders: front · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry with panic alarm · One-touch windows: 2 · Power outlet(s): 12V front · Reading lights: front · Steering wheel: tilt-adjustable · Steering wheel mounted controls: cruise controls · Vanity mirrors: dual illuminating
Driver Seat
Power adjustments: 6
Drivetrain
Axle ratio: 3.55 · Limited slip differential: rear
Engine
Alternator: 180 amps · Battery: maintenance-free
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: alloy · Front bumper color: body-color · Grille color: black · Mirror color: body-color · Rear bumper color: body-color · Rear spoiler: lip · Rear spoiler color: body-color · Window trim: black
Headrests
Front headrests: integrated · Number of front headrests: 2
In Car Entertainment
Infotainment: Uconnect · Infotainment screen size: 8.4 in.
Instrumentation
Fuel economy display: MPG · Warnings and reminders: low fuel level
Lights
Headlights: HID · Tail and brake lights: LED
Mirrors
Exterior mirrors: power
Passenger Seat
Manual Adjustments: 6
Safety
Camera system: rearview · Rearview monitor: in dash
Seatbelts
Emergency locking retractors: front · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Seatbelt warning sensor: driver and passenger
Seats
Driver seat power adjustments: height · Front seat type: bucket · Passenger seat manual adjustments: height · Upholstery: leather · Upholstery accents: faux suede
Steering
Steering ratio: 16.7 · Turns lock-to-lock: 2.4
Suspension
Driver Adjustable Suspension: ride control · Front Arm Type: upper and lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Arm Type: upper and lower control arms · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Stabilizer bar(s): rear · Suspension control: electronic
Telematics
Navigation system: with voice recognition · Phone wireless data link: Bluetooth
Tires
Type: performance
Tires and Rims
Wheels: polished aluminum
Wheels
Wheel spokes: 5
Windows
Front wipers: variable intermittent
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags
Audio System
Antenna Type: element · Voice recognition audio system · Auxiliary audio input: iPod/iPhone integration · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Harman-Kardon · Touch screen display radio · Satellite Radio: SiriusXM · 4 subwoofers · Total Number of Speakers: 14 · 900 watts
Brakes
ABS: 4-wheel · Front brake diameter: 14.0 · Front brake width: 1.3 · Front brakes: ventilated disc · Premium brakes: Brembo · Rear brake diameter: 14.0 · Rear brake width: 1.3 · Rear brakes: ventilated disc
Comfort Features
Dash trim: leather · Door trim: leather · Floor Mat Material: carpet · Floor Material: carpet · Floor Mats: front · Parking brake trim: leather · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Assist handle: passenger side · Center console: front console with armrest and storage · Cupholders: front · Dimming rearview mirror: auto-dimming · Multi-function remote: proximity entry system · One-touch windows: 2 · Power outlet(s): 12V front · Reading lights: front · Steering wheel: tilt-adjustable · Steering wheel mounted controls: voice recognition controls · Vanity mirrors: dual illuminating
Driver Seat
Power adjustments: 6
Drivetrain
Axle ratio: 3.55 · Limited slip differential: rear
Engine
Alternator: 180 amps · Battery: 600 CCA
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: alloy · Front bumper color: body-color · Grille color: black · Mirror color: body-color · Rear bumper color: body-color · Rear spoiler: lip · Rear spoiler color: body-color · Window trim: black
Headrests
Front headrests: integrated · Number of front headrests: 2
In Car Entertainment
Infotainment: Uconnect · Infotainment screen size: 8.4 in.
Instrumentation
Fuel economy display: MPG · Warnings and reminders: low fuel level
Lights
Headlights: HID · Tail and brake lights: LED
Mirrors
Exterior mirrors: power
Passenger Seat
Power adjustments: 6
Safety
Camera system: rearview · Rearview monitor: in dash
Seatbelts
Emergency locking retractors: front · Front seatbelts: 3-point · Seatbelt force limiters: front · Seatbelt pretensioners: front · Seatbelt warning sensor: driver and passenger
Seats
Driver seat power adjustments: height · Front seat type: bucket · Passenger seat power adjustments: height · Upholstery: leather · Upholstery accents: faux suede
Steering
Steering ratio: 16.7 · Turns lock-to-lock: 2.4
Suspension
Driver Adjustable Suspension: ride control · Front Arm Type: upper and lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Arm Type: upper and lower control arms · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Stabilizer bar(s): rear · Suspension control: electronic
Telematics
Navigation system: with voice recognition · Phone wireless data link: Bluetooth
Tires
Type: performance
Tires and Rims
Wheels: polished aluminum
Wheels
Wheel spokes: 5
Windows
Front wipers: variable intermittent