Product Support Support Center Tech-Assist Support FAQs Calling Tech-Assist What Are the ALLDATA Tech-Assist Hours of Operation? What Information Will You Need When I Call? What Kind of Questions Can I Ask Through ALLDATA Tech-Assist? WHAT KIND OF VEHICLES AND QUESTIONS CAN WE NOT ASSIST WITH? Who Am I Talking with When I Call ALLDATA Tech-Assist? What Information Will You Need When I Call? Shop phone number that is listed on your ALLDATA account Vehicle year, make, model and engine type Results of any testing that you've done, including DTCs