Increase Your Revenue As An Auto Repair Mechanic’s Garage or Shop:
280 More Opportunities to Repair Vibration Concerns
There are almost 300 possible sources of vibration concerns on today’s vehicles. The NVH App will automatically identify the group of parts and the specific type of vibration on your vehicle.
Save Time – The NVH app contains detailed step-by-step instructions for isolating and repairing the exact cause of the vibration.

77 More Opportunities to Repair Tire Speed Related Vibrations
“You can balance a square tire, but it will still shake driving down the road”
John Kelly – Vibrate Software, Inc.
Here are 77 more opportunities to repair Tire Speed Related vibrations.
Each of the items shown have unique causes, diagnostics, and repair procedures.
The NVH App comes with detailed step-by-step diagnostic and repair procedures for all of these causes of tire speed related vibrations:
- Axle flange centering hub radial runout
- Axle flange lateral runout
- Axle hub stud circle lateral runout
- Brake drum flange thickness variation
- Brake drum friction surface radial runout
- Brake drum imbalance
- Brake rotor flange thickness variation
- Brake rotor friction surface runout
- Brake rotor friction surface thickness variation
- Brake rotor imbalance
- Constant Velocity (CV) Half-shaft center support bearing axial endplay
- Constant Velocity (CV) Half-shaft runout
- Cross-Groove Constant Velocity (CV) Joint axial endplay
- Cross-Groove Constant Velocity (CV) Joint torsional endplay
- Cross-Groove Constant Velocity (CV) Joint working angle
- Double Offset Constant Velocity (CV) Joint axial endplay
- Double Offset Constant Velocity (CV) Joint torsional endplay
- Double Offset Constant Velocity (CV) Joint working angle
- Front axle shaft bearing axial endplay
- Front Axle differential case lateral runout
- Front Axle differential case radial runout
- Front Axle differential case side bearing preload/endplay
- Front Axle differential case side gear backlash
- Front Axle Pinion gear shaft bearing preload/endplay
- Front Axle Ring and Pinion gear set backlash variation
- Front Axle Ring and Pinion gear set pitch-line runout
- Front axle stub shaft pilot bearing axial endplay
- Front axle universal joint axial centering
- Front axle universal joint axial endplay
- Front axle universal joint torsional endplay
- Hub and bearing centering hub radial runout
- Hub and bearing flange lateral runout
- Hub and bearing stud circle lateral runout
- Lateral force variation
- Needle bearing race or bearing Brinnelling
- Push axles with any of the conditions listed above
- Radial force variation
- Rear axle shaft bearing axial endplay
- Rear Axle differential case lateral runout
- Rear Axle differential case radial runout
- Rear Axle differential case side bearing preload/endplay
- Rear Axle differential case side gear backlash
- Rear Axle Pinion gear shaft bearing preload/endplay
- Rear Axle Ring and Pinion gear set backlash variation
- Rear Axle Ring and Pinion gear set pitch-line runout
- Rear axle universal joint axial centering
- Rear axle universal joint axial endplay
- Rear axle universal joint torsional endplay
- Road force variation
- Roller Bearing race or roller nicking
- Roller Bearing race or roller spalling
- Roller Bearing race or roller Brinnelling
- Rzeppa Constant Velocity (CV) Joint axial endplay
- Rzeppa Constant Velocity (CV) Joint torsional endplay
- Rzeppa Constant Velocity (CV) Joint working angle
- Tag axles with any of the conditions listed above
- Tire and wheel assembly dynamic balancing
- Tire and Wheel assembly match mounting
- Tire and wheel assembly static balancing
- Tire bead seating variation
- Tire lateral runout
- Tire radial runout
- Tire air pressure
- Trailers with any of the conditions listed above
- Transaxle differential case lateral runout
- Transaxle differential case radial runout
- Transaxle differential case side bearing preload/endplay
- Transaxle differential case side gear backlash
- Transaxle Pinion gear shaft bearing preload/endplay
- Transaxle Power Transfer Unit (PTU) drive gear backlash variation
- Transaxle Power Transfer Unit (PTU) drive gear bearing preload/endplay
- Transaxle Ring and Pinion gear set backlash variation
- Tri-Pod Constant Velocity (CV) Joint axial endplay
- Tri-Pod Constant Velocity (CV) Joint torsional endplay
- Tri-Pod Constant Velocity (CV) Joint working angle
- Unequal tire sizes on same axle
- Wheel radial runout
- Wheel radial runout
- Wheel stud hole lateral runout
124 More Opportunities to Repair Driveshaft Speed Related Vibrations
“You may have just caused a vibration by changing a universal joint”
John Kelly – Vibrate Software, Inc.
Here are 124 more opportunities to repair Driveshaft Speed Related vibrations.
Each of the items shown have unique causes, diagnostics, and repair procedures.
The NVH App comes with detailed step-by-step diagnostic and repair procedures for all of these causes of driveshaft speed related vibrations:
- Automatic transmission clutch packs/housings
- Automatic transmission flex-plate
- Automatic transmission input shaft bearings
- Automatic transmission input shaft radial runout
- Automatic transmission output shaft bearings
- Automatic transmission output shaft radial runout
- Automatic transmission planetary gear sets
- Automatic transmission torque converter
- Front Axle Pinion companion flange bolts/studs/nuts
- Front Axle Pinion companion flange lateral runout
- Front Axle Pinion companion flange radial runout
- Front Axle Pinion companion flange universal joint strap
- Front Axle Pinion companion flange universal joint strap bolts/nuts
- Front Axle Pinion gear shaft bearing preload/endplay
- Front Axle Pinion gear shaft radial runout
- Front Axle Ring and Pinion gear set backlash variation
- Front Axle Ring and Pinion gear set pitch-line runout
- Front Driveshaft assembly imbalance
- Front Driveshaft center support bearing alignment
- Front Driveshaft center support bearing axial endplay
- Front Driveshaft Cross-Groove Constant Velocity (CV) Joint axial endplay
- Front Driveshaft Cross-Groove Constant Velocity (CV) Joint torsional endplay
- Front Driveshaft Cross-Groove Constant Velocity (CV) Joint working angle
- Front Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) Joint axial endplay
- Front Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) Joint torsional endplay
- Front Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) Joint working angle
- Front Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) coupling yoke runout
- Front Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) centering stud runout
- Front Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) centering ball runout
- Front Driveshaft Double Offset Constant Velocity (CV) Joint axial endplay
- Front Driveshaft Double Offset Constant Velocity (CV) Joint working angle
- Front Driveshaft Driveshaft Double Offset Constant Velocity (CV) Joint torsional endplay
- Front Driveshaft end yoke ear line bore alignment
- Front Driveshaft end yoke phasing alignment
- Front Driveshaft harmonic balancer alignment/phasing
- Front Driveshaft noise silencer integrity
- Front Driveshaft radial runout
- Front Driveshaft Rzeppa Constant Velocity (CV) Joint axial endplay
- Front Driveshaft Rzeppa Constant Velocity (CV) Joint torsional endplay
- Front Driveshaft Rzeppa Constant Velocity (CV) Joint working angle
- Front Driveshaft slip yoke spline vertical endplay
- Front Driveshaft top view universal joint working angles
- Front Driveshaft Tri-Pod Constant Velocity (CV) Joint axial endplay
- Front Driveshaft Tri-Pod Constant Velocity (CV) Joint torsional endplay
- Front Driveshaft Tri-Pod Constant Velocity (CV) Joint working angle
- Front-Wheel Drive (FWD) Transaxle Power Transfer Unit (PTU) driven gear bearing preload/endplay
- Front-Wheel Drive (FWD) Transaxle Power Transfer Unit (PTU) driven gear backlash variation
- Inter-Axle Driveshaft radial runout
- Manual transmission clutch disc(s)
- Manual transmission dual-mass flywheel
- Manual transmission flywheel
- Manual transmission input shaft bearings
- Manual transmission input shaft radial runout
- Manual transmission output shaft bearings
- Manual transmission output shaft radial runout
- Manual transmission pressure plate
- Manual transmission synchronizer sleeves
- Multiple piece driveline phasing
- Multiple piece driveline top view universal joint working angles
- Needle bearing race or roller Brinnelling
- Rear Axle Pinion companion flange bolts/studs/nuts
- Rear Axle Pinion companion flange lateral runout
- Rear Axle Pinion companion flange radial runout
- Rear Axle Pinion companion flange universal joint strap
- Rear Axle Pinion companion flange universal joint strap bolts/nuts
- Rear Axle Pinion gear shaft bearing preload/endplay
- Rear Axle Pinion gear shaft radial runout
- Rear Axle Ring and Pinion gear set backlash variation
- Rear Axle Ring and Pinion gear set pitch-line runout
- Rear Driveshaft assembly imbalance
- Rear Driveshaft center support bearing alignment
- Rear Driveshaft center support bearing axial endplay
- Rear Driveshaft Cross-Groove Constant Velocity (CV) Joint axial endplay
- Rear Driveshaft Cross-Groove Constant Velocity (CV) Joint torsional endplay
- Rear Driveshaft Cross-Groove Constant Velocity (CV) Joint working angle
- Rear Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) Joint axial endplay
- Rear Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) Joint torsional endplay
- Rear Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) Joint working angle
- Rear Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) coupling yoke runout
- Rear Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) centering stud runout
- Rear Driveshaft Double Cardan (Hooke’s Joint) Constant Velocity (CV) centering ball runout
- Rear Driveshaft Double Offset Constant Velocity (CV) Joint axial endplay
- Rear Driveshaft Double Offset Constant Velocity (CV) Joint working angle
- Rear Driveshaft Driveshaft Double Offset Constant Velocity (CV) Joint torsional endplay
- Rear Driveshaft end yoke ear line bore alignment
- Rear Driveshaft end yoke phasing alignment
- Rear Driveshaft harmonic balancer alignment/phasing
- Rear Driveshaft noise silencer integrity
- Rear Driveshaft parking brake drum imbalance
- Rear Driveshaft parking brake rotor imbalance
- Rear Driveshaft radial runout
- Rear Driveshaft Rzeppa Constant Velocity (CV) Joint axial endplay
- Rear Driveshaft Rzeppa Constant Velocity (CV) Joint torsional endplay
- Rear Driveshaft Rzeppa Constant Velocity (CV) Joint working angle
- Rear Driveshaft slip yoke spline vertical endplay
- Rear Driveshaft top view universal joint working angles
- Rear Driveshaft Tri-Pod Constant Velocity (CV) Joint axial endplay
- Rear Driveshaft Tri-Pod Constant Velocity (CV) Joint torsional endplay
- Rear Driveshaft Tri-Pod Constant Velocity (CV) Joint working angle
- Roller Bearing race or roller nicking
- Roller Bearing race or roller spalling
- Roller Bearing race or roller Brinnelling
- Transfer case center bearing
- Transfer case chair drive gear
- Transfer case chair driven gear
- Transfer case front output shaft
- Transfer case front output shaft bearings
- Transfer case input shaft bearing
- Transfer case mode shift sleeve
- Transfer case more synchronizer assembly
- Transfer case output shaft bearings
- Transfer case output shaft radial runout
- Transfer case planet carrier
- Transfer case planetary sun gear
- Transfer case speed sensor tone wheel
- Universal joint axial end play
- Universal joint axial endplay
- Universal joint centering
- Universal joint cross width variation
- Universal joint moments of inertia
- Universal joint snap ring thickness difference
- Universal joint torsional endplay
- Universal joint working angle
- Universal Joint brand mismatch
79 More Opportunities to Repair Engine Speed Related Vibrations
“Although some engine vibrations are normal, you should not feel them in the vehicle”
John Kelly – Vibrate Software, Inc.
Here are 79 more opportunities to repair Engine Speed Related vibrations.
Each of the items shown have unique causes, diagnostics, and repair procedures.
The NVH App comes with detailed step-by-step diagnostic and repair procedures for all of these causes of engine speed related vibrations:
Normal and Abnormal Engine Vibrations; do you know the difference? The NVH App does.
- Air Conditioning hoses
- Automatic transmission clutch packs/housings
- Automatic transmission flex-plate bolt hole circle runout
- Automatic transmission flex-plate bolts
- Automatic transmission flex-plate imbalance
- Automatic transmission flex-plate lateral runout
- Automatic transmission flex-plate radial runout
- Automatic transmission flex-plate starter motor ring gear teeth
- Automatic transmission input shaft bearings
- Automatic transmission input shaft radial runout
- Automatic transmission torque converter
- Automatic transmission torque converter clutch shudder
- Automatic transmission torque converter clutch torsional damper springs
- Automatic transmission torque converter bolts
- Belt-driven accessories
- Brake pipes
- Combustion firing pulses
- Combustion side forces
- Crankshaft gas forces
- Crankshaft inertia forces
- Crankshaft longitudinal forces
- Crankshaft torsional forces
- Cylinder misfire
- Cylinder deactivation systems
- Direct gasoline fuel injection pulsations
- Drive pulley
- Driven pulleys
- Driveshaft center support bearing
- Driveshaft slip yoke
- Engine balance shaft(s)
- Engine Camshaft(s)
- Engine combustion rocking motion
- Engine Crankshaft
- Engine cylinder deactivation systems
- Engine free moments of inertia
- Engine mounts
- Engine oil cooler lines
- Engine oil pump(s)
- Engine Variable Valve Timing (VVT) actuators
- Even cylinder engines
- Exhaust system dynamic damper(s)
- Exhaust system flexible coupling
- Exhaust system mass damper(s)
- Exhaust system mounts
- Exhaust system thermal expansion
- Frame Dynamic dampers
- Frame Mass dampers
- Fuel lines
- Gear-driven accessories
- Harmonic balancer assembly
- Heater hoses
- Lateral forces
- Manual transmission clutch disc(s)
- Manual transmission dual-mass flywheel
- Manual transmission dual-mass flywheel bolts
- Manual transmission flywheel bolts
- Manual transmission flywheel imbalance
- Manual transmission flywheel lateral runout
- Manual transmission flywheel radial runout
- Manual transmission flywheel starter motor ring gear teeth
- Manual transmission input shaft bearings
- Manual transmission input shaft radial runout
- Manual transmission pressure plate
- Manual transmission pressure plate bolt hole circle runout
- Manual transmission pressure plate bolts
- Needle bearing race or roller Brinnelling
- Odd cylinder number engines
- Piston movement
- Radiator hoses
- Roller Bearing race or roller nicking
- Roller Bearing race or roller spalling
- Roller Bearing race or roller Brinnelling
- Running boards
- Transmission Dipstick tube
- Transmission mounts
- Transmission oil cooler lines
- Vertical forces
- Vibration damper assembly
- Wire harnesses
Amazing Benefits of the NVH App
Save Time, Increase Profits
- Low Cost Diagnostic Tool
- Automatic Software Updates
- No Windows Updates EVER!
Convenient
- You always have it with you
- Easy to Setup
- Easy to Use
- Automatic Diagnostic Results
- Ready to Road Test in as little as 30 seconds
- Save Your Road Tests (up to 30 minutes)
- Easily Save Each Vehicle You Test
- Verify your repair – Compare before and after repair results
- Sharable, printable pdf report of road test results
Accurate
- Uses internal phone or tablet sensors for vehicle speed and high accuracy diagnostics
Online Support
- YouTube Support Videos
- Facebook support and feedback opportunities
- Twitter support and feedback opportunities
- Collaborate – Email Road Test Results to other NVH app users
Get the Help You Need
- Detailed Tutorial Included
- Vibration Diagnosis School Included
- Comprehensive Detailed Diagnostic Repair Instructions for nearly 300 vibration sources Included
- Diagnostic Videos Included
- Hundreds of helpful Diagnostic photos are included
Features
- Instructor Mode for classroom training environment (iOS Devices)
- Optional Bluetooth DLC connector for direct read of engine RPM
- Automatically Identify the frequency of the worst vibration
- Identify the amplitude level of vibration frequencies
- Automatically Identify vibrations up to the 6th order
- Automatically Filter out cracks and bumps in the road
- Optional Manual Diagnostic Results
What the app can do
The NVH app is designed to automatically detect the type of vibration your vehicle is experiencing, provided the instructions of the road test procedure are followed.
There are 14 types of vibrations the NVH app can automatically detect:
- Tire speed-related (1st, 2nd, and 3rd order vibrations)
- Driveshaft speed-related (1st, 2nd, and 3rd order vibrations)
- Engine speed-related (0.5, 1st, 2nd, 3rd, 4th, 5th, and 6th order vibrations)
- Electric Motor Speed Related (1st order vibrations)
Each type of vibration has unique causes. A vibration type is not the same thing as a vibration source. There are many possible causes (sources) for each vibration type. The NVH app includes step-by-step instructions on locating the vibration source once the app has identified the type of vibration.
What the app cannot do
- The NVH App cannot automatically tell you the source of a vibration
- Although the NVH app is excellent at identifying the type of vibration your vehicle is experiencing, you or someone else will need to follow the diagnostic steps described in the app help files to identify the exact cause or source of the vibration.
There are almost 300 possible sources of vibration concerns in today’s vehicles

THE NVH APP IS HERE!
Turn your Phone or Tablet into a Vibration diagnostic tool! Purchase our new App to use the internal sensors of your Phone or Tablet to diagnose the type of vibration your car or truck is experiencing. There are close to 300 individual vibration sources on a typical vehicle; the NVH App knows each one of them and can guide you through the entire diagnostic and repair procedures for each one of them.