How to identify a broken timing chain - GM 2.2 (part 2)
Following up my previous video, I get the opportunity to explain some of the mistakes I made previously using the ignition sync probe, as well as demonstrate some alternative methods for finding a timing chain issue. I also go in-depth into the GM 7X crankshaft position signal used across multiple engines, and how a bypass ignition system can produce spark despite a timing problem. Engine Performance Diagnostics chapter 23 Symptoms crank no start (unusual cranking rhythm) spark present check engine light (P0107, P0141, P0340, P0440, P1621, P0621) Fix replaced the timing chain Tests shown how to perform an in cylinder pressure transducer test with a lab scope analyzing and understanding in cylinder pressure waveforms comparing ignition timing to in cylinder pressure understanding the GM 7X crank signal, reference pulses and bypass ignition systems comparing this 2.2L to a known good in cylinder waveform, using timing overlays Tools used Pico WPS500 pressure transducer lab scope In Cylinder Pressure Transducer Diagnostics by John Thornton Playlist (Chapter 23) No Start Diagnostics with good spark and fuel • (Chapter 23) No Start Diagnostics with goo... Related videos How to identify a broken timing chain - GM 2.2 (part 1) • How to identify a broken timing chain - GM... Honda Civic 1.7 (start, run, stall case study) • Honda Civic 1.7L starts, runs, stalls (inc... How to check for a jumped timing chain or belt • How to check for a jumped timing chain or ... Jumped timing chain (no compression on 3 cylinders) - GM 3.6 • Jumped timing chain (no compression on 3 c... Jeep 4.0L timing problems (a ScannerDanner Premium video) • Jeep 4.0L timing problems (a ScannerDanner... 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.
