Our Service

Live diagnostic help, one phone call away.

Since 1994, Diagnostic Hotline has connected independent repair shops with veteran specialists who solve tough problems in real time. No callback queues. No guesswork. Just the right advice, right away.

What you get when you call

Expert answers, not another parts run.

Downtime in the bay means you are not making money, and customers get frustrated. A quick call to Diagnostic Hotline puts a veteran technician on the line so you can finish the job and move to the next one.

  • Get through to a specialist right away, no waiting for a callback.
  • Every specialist has access to a full automotive library and a symptom-and-repair database.
  • Schematics, wiring diagrams, and TSBs can be sent to you during the call.
  • Specialists focus by make and stay current on new models, tools, and techniques.

Capabilities

What we cover on every call.

Live Specialist Calls

Talk to a veteran technician with decades of hands-on, under-the-hood experience. No hold queue.

Wiring Diagrams & TSBs

Schematics and technical service bulletins sent to you during the call so you can work while you talk.

All Makes & Models

Foreign and domestic. Specialists organized by make and kept up to date on the latest models.

GM Radio Loc / Unlock

Fast radio unlock support so you can close the ticket without sending the customer back to the dealer.

OE Factory Information

Access to factory service data and a database of pattern failures built up over three decades.

Reference Delivery

Need the diagram or bulletin in writing? We send it during the call, straight to your shop.

Veteran technician on a diagnostic call

On the line

A specialist, not a script.

How a call works

Five simple steps.

  1. 01

    Call in

    Dial 800-260-9377. A specialist picks up.

  2. 02

    Describe the vehicle and the problem

    Year, make, model, and what you are seeing in the bay.

  3. 03

    Diagnose live with a specialist

    Walk through tests, readings, and possible causes together.

  4. 04

    Get the fix and get back to work

    Clear next steps. Diagrams and bulletins sent as needed.

  5. 05

    Call again anytime

    No re-sign-up. Free account, use it whenever you need us.

Pricing

Free sign-up. Pay only when you call.

No monthly fee. No yearly account fee. Choose the option that fits how your shop works.

Pay per call

Billed by the minute. Best for shops that call once in a while.

Prepaid time blocks

Buy time in 30-minute blocks. Lower per-minute cost, use it as you need it.

Flat fee per case

One price covers unlimited calls on the same case until it is solved.

Contact us for current rates and to set up your free account.

Who this is for

Built for shops that hate lost time.

Independent shops

Owners and service managers who need answers without paying for a full-time diagnostic hire.

Technicians of every level

From new techs learning the ropes to master techs stuck on an odd one, we help everyone.

All makes and models

Foreign and domestic, older vehicles to the latest models.

From the shop floor

"We have been using Diagnostic Hotline since 1994. We make more money because we cut out lost time on misdiagnosis and needless parts hanging. Our techs learn more too."

Jack Linwood, Linwood Automotive

Ready when you are.

Free sign-up. Call as often as you need to.

Sign Up Today