Join me and one of my students at RTC as we troubleshoot an intermittent no start problem on a Jeep Grand Cherokee. The procedures shown in this video apply to all Chrysler, Dodge and Jeep electrical systems. In particular, the cam and crank sensor tests that we show.
Symptoms
intermittent no start, no spark or injector pulse
check engine light on P0320, P1391 trouble codes
hesitation and surging
Fix
replace faulty crank sensor
Tests shown
how to test for cam and crank signals on scan data
what scan data Ignition Cycles can be used for
how to test the cam and crank sensors with a scope
how sample rate of a scope affects the signal
why a sensor ground is better to use than battery ground in some circumstances
how to recreate an intermittent problem
sensor power and ground tests
Engine Performance Diagnostics chapter 21
Playlist
(Chapter 21) Ignition inputs, cam and crank sensors
• (Chapter 21) Ignition ...
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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.
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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.
Негізгі бет Intermittent stall, no start - P0320, P1391 cam, crank sensor testing (Jeep)
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