In this episode of the Bumper to Bumper Podcast, hosts Dave Riccio, Co-Creator of Bumper to Bumper Radio and Jon Riggle pull back the curtain on what actually goes into a transmission diagnostic — and why it's one of the most misunderstood parts of auto repair.

From road tests and scan tools to technical service bulletins (TSBs) and fluid checks, this episode breaks down the real diagnostic process step-by-step — saving customers from unnecessary transmission replacements that could cost thousands.

In this episode, we cover:

- Why most transmission quotes are guesses without a proper diagnostic- The danger of misdiagnosing complex transmission issues

- Real stories from the shop (including a $10K fix that only cost $1K!)

- How we use TSBs, scan tools, and real-time road testing

- Why asking the right questions is key to fixing your vehicle

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