Uploaded June 2026 | Updated September 2026, 3 weeks ago
This 2005 Mercury Sable 3.0 no-start had already been through three ECMs and a pile of parts before it got to us. The scan tool gives us a direction right away, but this case is a good reminder that codes do not replace basic testing.
Beau and I work through spark, injector pulse, fuel pressure, fuel pump current, and the anti-theft question without jumping to conclusions. This one is all about no-start fundamentals and proving the fault before replacing more parts.
Related Videos:
Ford Electronic Returnless Fuel System Diagnosis (Part 1)
youtu.be/Rwve6lXriO4
Ford Electronic Returnless Fuel System Diagnosis (Part 2)
youtu.be/u342IRRJ5bk
Intermittent Low Power/Lean Conditions [2006 Ford F150 Electronic Returnless Fuel System]
youtu.be/f2p0VX9eYYg
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On ScannerDanner Premium, you'll get:
*In-depth classroom lectures based on the material in my book
*Case studies with real vehicles brought into class
*Troubleshooting using proven diagnostic methods
*Access to our private forum
*Fundamental training in automotive electrical, electronics, and drivability diagnostics
📘 Want to Learn More About Diagnostics?
Check out my field manual, Engine Performance Diagnostics, available as both an eBook and paperback at:
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0:00 2005 Mercury no-start after multiple ECMs
1:04 No-start fundamentals and initial scan data
2:27 PATS code, no fuel pressure, and basic checks
4:06 Spark test and added fuel test
5:35 Injector pulse testing before condemning the pump
8:29 Fuel pump current testing at the inertia switch
12:17 Tank removal and failure found
15:03 New pump installed… now why is current so low?
17:28 Pulse-width-modulated fuel pump control explained
20:14 Fuel pump RPM calculation and returnless system notes
22:00 Fuel leak safety check after repair
23:18 Tech tip: fuel pump module control and current flow
⚠️ Disclaimer:
ScannerDanner LLC is not responsible for misuse, unauthorized changes, or incorrect application of any information provided. Always follow proper safety protocols when using tools, equipment, or procedures discussed in this video. Use this content at your own risk.
This 2005 Mercury Sable 3.0 no-start had already been through three ECMs and a pile of parts before it got to us. The scan tool gives us a direction right away, but this case is a good reminder that codes do not replace basic testing.
Beau and I work through spark, injector pulse, fuel pressure, fuel pump current, and the anti-theft question without jumping to conclusions. This one is all about no-start fundamentals and proving the fault before replacing more parts.
Related Videos:
Ford Electronic Returnless Fuel System Diagnosis (Part 1)
youtu.be/Rwve6lXriO4
Ford Electronic Returnless Fuel System Diagnosis (Part 2)
youtu.be/u342IRRJ5bk
Intermittent Low Power/Lean Conditions [2006 Ford F150 Electronic Returnless Fuel System]
youtu.be/f2p0VX9eYYg
🔧 Looking for Deeper Training?
Whether you're a DIYer, an aspiring tech, or a working technician, ScannerDanner Premium gives you in-depth diagnostic training built around real testing and real troubleshooting:
👉 Join Here – 14 Days for $1
scannerdanner.com/join-scannerdanner-premium.html
On ScannerDanner Premium, you'll get:
*In-depth classroom lectures based on the material in my book
*Case studies with real vehicles brought into class
*Troubleshooting using proven diagnostic methods
*Access to our private forum
*Fundamental training in automotive electrical, electronics, and drivability diagnostics
📘 Want to Learn More About Diagnostics?
Check out my field manual, Engine Performance Diagnostics, available as both an eBook and paperback at:
👉 https://linktr.ee/scannerdanner
ScannerDanner Tools:
https://linktr.ee/scannerdanner
0:00 2005 Mercury no-start after multiple ECMs
1:04 No-start fundamentals and initial scan data
2:27 PATS code, no fuel pressure, and basic checks
4:06 Spark test and added fuel test
5:35 Injector pulse testing before condemning the pump
8:29 Fuel pump current testing at the inertia switch
12:17 Tank removal and failure found
15:03 New pump installed… now why is current so low?
17:28 Pulse-width-modulated fuel pump control explained
20:14 Fuel pump RPM calculation and returnless system notes
22:00 Fuel leak safety check after repair
23:18 Tech tip: fuel pump module control and current flow
⚠️ Disclaimer:
ScannerDanner LLC is not responsible for misuse, unauthorized changes, or incorrect application of any information provided. Always follow proper safety protocols when using tools, equipment, or procedures discussed in this video. Use this content at your own risk.
![Low Voltage from a Bad Ground? [Voltage Drop Testing Fundamentals]](https://i.ytimg.com/vi/rGQ-bA9z39Y/mqdefault.jpg "Low Voltage from a Bad Ground? [Voltage Drop Testing Fundamentals]
Low Voltage from a Bad Ground? [Voltage Drop Testing Fundamentals]")
![A/C Compressor Clutch Circuit Testing [All Cars] + Recharge](https://i.ytimg.com/vi/sBueOct0qXY/mqdefault.jpg "A/C Compressor Clutch Circuit Testing [All Cars] + Recharge
2013 Ford F-150 5.0L A/C System Clutch Circuit Testing, Electrical Repair and Recharge (topping off a slightly low system using gauge pressures as a guide)
00:00 - intro
00:16 - system pressure test
00:55 - full code scan of all modules
01:12 - Engine Computer Air Conditioning Request Input Test
02:10 - bi-directional test with scan tool
03:07 - A/C clutch tap test
03:54 - testing of the circuit at the A/C relay begins
05:11 - need highlight changed
05:55 - testing the ECM driver
06:32 - continuity test for the clutch (open found)
10:25 - tightening terminals at A/C connector
12:22 - A/C pressures after wiring repair (low charge)
14:51 - topping off the A/C system using gauge pressures to determine charge
18:32 - proper way to remove A/C gauges
📘 Want to Learn More About Diagnostics?
Check out my field manual, Engine Performance Diagnostics, available as both an eBook and paperback at:
👉 https://linktr.ee/scannerdanner
🔧 Looking for Deeper Training?
Whether youre a DIYer, an aspiring tech, or a professional looking to sharpen your skills, join ScannerDanner Premium for next-level diagnostics training:
👉 Join Here – 14 Days for $1
https://www.scannerdanner.com/join-scannerdanner-premium.html
On ScannerDanner Premium, youll get:
*In-depth classroom lectures straight from my book
*Exclusive case studies with live vehicles pulled into class
*Real-time troubleshooting using proven methods
*Post help requests on our forum
*Fundamental training on diagnosing automotive electrical and electronics systems.
ScannerDanner Tools:
https://linktr.ee/scannerdanner
⚠️ Disclaimer:
ScannerDanner LLC is not responsible for misuse, unauthorized changes, or incorrect application of any information provided. Always follow proper safety protocols when using tools, equipment, or procedures discussed in this video. Use this content at your own risk.")
