Alright, let’s talk about the Tesla Thermal Management System (TMS). If you’ve got a “Thermal Management System Fault” message popping up, don’t just clear it and hope it goes away.…
Tesla
Tesla 12V Battery Draining to 10V After Parking: Causes and Fixes
Alright, let’s talk about something I see all too often: you walk up to your Tesla, pull the handle, and… nothing. Dead as a doornail. No display, no response, just…
Which car models are most prone to DC-DC converter failure? (e.g., Nissan Leaf, early Tesla Model S)
After 25 years turning wrenches, I’ve seen just about everything fail on a car. But when hybrids and EVs started rolling into the shop, a new kind of headache popped…
Why does one motor shut down in dual-motor electric vehicles (Tesla Dual Motor, Audi e-tron)?
When an EV Motor Goes South: What I Look For Alright, so you’re cruising along in your dual-motor EV, everything’s normal, then BAM! The dash lights up like a Christmas…
Which car models have common EPS (electric power steering) failure issues? (e.g., Fiat 500, Mini R56, early Tesla Model S)
After more than two decades wrenching on cars, I can tell you that when an Electric Power Steering (EPS) system goes belly up, you usually know it. It’s not subtle.…
Why Do Some EVs Like Tesla and Lucid Have a “Steer-by-Wire” System, and How Does It Affect Repairs?
Alright, let’s talk steer-by-wire. If you’re driving something like a Tesla Model S Plaid or a Lucid Air and that system decides to throw a real fit, you’re not going…
Why Do Tesla and Other EV Brake Pads Last 2–3 Times Longer? The Role of Regenerative Braking.
Your EV Brake Pads Aren’t Wearing Out? Here’s Why (And What to Watch For) Alright, let’s talk about EV brakes. I’ve had countless customers bring in their Teslas or other…
Why Tesla Model 3/Y Don’t Have a Physical Parking Brake — How Emergency Brake Hold Works
After 25+ years turning wrenches, I’ve seen a lot of changes, but the shift to electric parking brakes (EPB) in cars like the Tesla Model 3 and Y really throws…
Why do some EVs (like early Tesla Model S) use a separate battery for the brake booster?
Alright, let’s talk about early Tesla Model S brakes. If you’ve popped the frunk on one of these and scratched your head at that little standalone battery tucked away just…
Which car models are prone to ECU flash memory failure (e.g., BMW N54, early Tesla)?
When Your ECU Forgets Itself: Diagnosing Flash Memory Failure Alright, let’s talk about something that’s becoming more common in the shop: an Engine Control Unit (ECU) that’s failing from the…
Why is the airbag control module integrated into the main computer in Tesla Model 3 and Model S?
Alright, let’s talk about Tesla airbags. If you’ve been wrenching on cars for as long as I have—over 25 years now—you’re used to finding the Airbag Control Module (ACM) tucked…
Why Automotive Ethernet is Replacing CAN in New EVs (Tesla, Lucid, Porsche Taycan)
Alright, let’s talk about something I’m seeing more and more in the shop, especially with these newer electric vehicles. For years, when a car acted up, you’d look for the…
Why Do Tesla and Other EVs Use Fewer Traditional Relays and Fuses?
Alright, let’s talk about electric vehicles. If you’ve spent any real time wrenching on gasoline cars, you’re used to a certain way of doing things. You look for a blown…
Why the Tesla Model 3/Y Has Multiple Cooling Circuits & How They Work Together
Alright, let’s talk Tesla thermal management. If you’re seeing this, chances are you’ve got a Model 3 or Model Y acting up, and I can tell you, these systems are…
Why Does the A/C Stay On When the Car is Off in Some EVs (Tesla, Porsche Taycan)?
You’ve just locked up your EV, walked away, and then you hear it: that low, persistent hum or a faint hiss coming from the front end. You’re thinking, “Didn’t I…
Why Tesla Model Y with Heat Pump Loses 40% Range in Winter: Normal or a Problem?
Alright, let’s talk about your Tesla Model Y in the cold. Every winter, I get calls about range dropping off a cliff, and folks immediately jump to “the heat pump…
Why Some EVs (BMW i3, Early Tesla) Lack a Heater Core — and How It’s Fixed
Alright, let’s talk about one of the most common complaints I hear from EV owners, especially when winter rolls around: no cabin heat. You crank the climate control to max,…
Can a Failed Coolant Pump Cause Tesla Model 3 Power Electronics to Overheat?
When Your Tesla’s Coolant Pump Dies: What You’ll See (and Feel) Alright, let’s talk about a common headache I see in the shop with Model 3s: a failing low-temperature coolant…
Why Tesla Autopilot Sees ‘Ghosts’ — Is It a Software or Sensor Problem?
Alright, let’s talk about those weird things your Tesla’s doing. If your car just slammed on the brakes for no reason, or you swore you saw a phantom semi-truck on…
Why Tesla Model 3/Y Have No Physical Adjustment Buttons — And How It Affects Repairs
Alright, let’s talk about those stubborn Tesla seats and mirrors. I’ve been wrenching on cars for over 25 years, and while Teslas are a different beast, some problems just echo…
Why Tesla TPMS Shows Pressure to 0.1 Bar While Others Only Say Low/Normal
You’re not crazy—your Tesla really does show tire pressure down to 0.1 bar. That’s not a gimmick. It’s direct TPMS working exactly as designed. I’ve been turning wrenches since the…
Tesla’s Touchscreen Controls: Why All Comfort Features Are Centralized and the Safety Risks
When your Tesla’s screen goes dark or stops responding, you’re not dealing with a dead radio—you’ve lost the brain of the car. Climate control? Gone. Wipers? Might not work. Even…
Why a Single Screen Failure Can Make a Tesla Model 3/S/Y Undrivable
When your Tesla’s screen goes black and stays that way, you’re not just losing a display—you’re losing the nervous system of the car. I’ve pulled dozens of these units into…
Why Tesla Puts Everything on One Screen — And Why That’s a Problem
A dead Tesla screen isn’t a glitch. It’s a systems collapse. I’ve pulled apart over seventy of these MCUs—some with soldering irons still warm from the last repair—and what you’re…
Why Tesla and Other EVs Use Only LED Brake Lights — and How It Affects Repairs
You’ve got a brake light out on your Tesla. The car’s telling you it’s “lamp out,” maybe even flashing a warning on the screen. First thing—take a breath. This isn’t…
Why Tesla and Other EVs Integrate Antennas Into the Body Panels and the Impact on Collision Repair
You hit a pothole, get a dent in the rear quarter panel, and now your Tesla won’t lock with the key fob, GPS drifts like it’s drunk, and the car…
Why is the OBD2 port often blocked or inaccessible on Tesla and other EVs?
You open the driver’s door, crouch down, reach into the footwell—and come up empty. No OBD2 port. Nothing. Just smooth plastic where the 16-pin connector should be. I’ve seen this…
What Causes the “12V Battery Needs Service” Warning on Tesla Model 3/S/Y?
That “12V Battery Needs Service” Alert in Your Tesla: What It Really Means Alright, let’s talk about that dreaded “12V Battery Needs Service” message popping up on your Tesla’s screen.…
Common Problems with Tesla Model S/X Gen1 and Gen2 Inverters
Alright, let’s talk Tesla inverters. After 25 years under the hood – or in this case, under the frunk – I’ve seen these things fail in just about every way…
How to Tell if Your Tesla Model 3 RWD Has a Bad Differential
Alright, let’s talk about that rear end noise in your Tesla Model 3. I’ve been wrenching on cars for over 25 years, and while EVs are different beasts, some mechanical…