How to find a shorted coil on a Ford 5.4 engine (misfire diagnosis)
130.6 هزار بار بازدید -
13 سال پیش
-
How to troubleshoot a bad
How to troubleshoot a bad coil on a coil over plug system, using a scope and a low amp probe. There are other ways to isolate the problem. You can move the suspect coil to another cylinder and see if the misfire code moves with the coil. But this test is not always reliable.
Symptoms
- misfire
- hesitation
- check engine light with misfire codes
- low power
Fix
- replace shorted ignition coil
Tests shown
- how to measure ignition coil current from the fuse box
- how to sync the coil patterns to identify specific cylinders
- how to set up a lab scope for ignition coil primary current tests
- what a shorted coil secondary waveform looks like
Tools used
- Lab Scope
- Scan Tool
- Low amp probe
Related Videos
- How to identify a shorted ignition coil (Honda)
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- Ford 5.4 shorted coil primary winding and bad computer driver
Ford 5.4 shorted coil primary winding...
- How to test for a shorted ignition coil with a scope (Lexus)
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- How to test for a shorted ignition coil (Honda Distributor)
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- How to test for spark with a test light (GM distributor ignition system) How to test an ignition coil/module w...
Playlist
- (Chapter 22) No Spark Troubleshooting, Ignition Coil & Module Testing
(Chapter 22) No Spark Troubleshooting...
For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.
Symptoms
- misfire
- hesitation
- check engine light with misfire codes
- low power
Fix
- replace shorted ignition coil
Tests shown
- how to measure ignition coil current from the fuse box
- how to sync the coil patterns to identify specific cylinders
- how to set up a lab scope for ignition coil primary current tests
- what a shorted coil secondary waveform looks like
Tools used
- Lab Scope
- Scan Tool
- Low amp probe
Related Videos
- How to identify a shorted ignition coil (Honda)
How to identify a shorted ignition co...
- Ford 5.4 shorted coil primary winding and bad computer driver
Ford 5.4 shorted coil primary winding...
- How to test for a shorted ignition coil with a scope (Lexus)
How to test for a shorted ignition co...
- How to test for a shorted ignition coil (Honda Distributor)
How to test for a shorted ignition co...
- How to test for spark with a test light (GM distributor ignition system) How to test an ignition coil/module w...
Playlist
- (Chapter 22) No Spark Troubleshooting, Ignition Coil & Module Testing
(Chapter 22) No Spark Troubleshooting...
For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.
13 سال پیش
در تاریخ 1390/07/29 منتشر شده
است.
130,662
بـار بازدید شده