THE ALLDATA ADVANTAGE
ALLDATA is the industry’s #1 choice for unedited mechanical and collision OEM repair information, diagnostic solutions, shop management software, and support services, trusted by more than 400,000 technicians in over 115,000 shops worldwide.
Up-to-date OEM mechanical/collision repair information and procedures for 44,000 engine-specific vehicles, 95% of all vehicles on the road today.
Get solutions to your most challenging repair issues with data-driven solutions based on aftermarket analysis and peer validation and Tech-Assist, a diagnostic hotline staffed by 30+ ASE-Certified Master Techs.
Shops of all sizes can streamline day-to-day workflow processes and improve business efficiency with our three shop management solutions.
WORKING WITH THE INDUSTRY’S BEST
ALLDATA proudly partners with other leaders in the automotive industry. These affiliations help ensure that the OEM information found in ALLDATA products is used in major organizations nationwide for vehicle repair and maintenance.
ALLDATA NEWS
ALLDATA News
Poor Brake Performance, the Phenolic Fix
If you’ve worked in automotive long enough, you’ve probably seen it. The customer complains that the brakes don’t stop like they used to or that the vehicle seems to drag as it rolls to a stop. Sometimes there’s a faint burning smell they can’t quite explain or a noise they cancelled out via the radio. Often, though, the customer doesn’t mention anything at all, but to your trained eye, the story is already visible through the wheel. The rotors are heat scorched, the pads are worn unevenly, and something clearly isn’t right.
Tech Tips
Unusual Cause of Jaguar XJ Valve Train Noise on Startup
Vehicle: 2004 Jaguar XJ (X350), V8-4.2L, Automatic Transmission/Transaxle
Mileage: 142,548 miles
Problem: This vehicle had excessive noise coming from both valve covers for about 10 minutes during the morning start-up only.