Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

2005 Trailblazer 4.2 #6 cylinder misfire

Case study on a 4.2l C.O.P engine with a misfire. For more info. on my Ebook go to www.autocomputerstroubleshooting.com How to perform an injector balance test with a scan tool.


 


More Videos...


Ford C.O.P. Ignition Testing (2003 Expedition 5.4)
2003 Ford Expedition 5.4 coil over plug system with a misfire and a P0356 trouble code.





How to identify a bad main relay on a Honda (PGM-FI)
1999 Honda Accord No Start (case study) For more on Engine Performance Diagnostics go to my website at www.scannerdanner.com I am doing field work in this video on a 1999 Honda Accord with an intermittent no start complaint. Other symptoms include: stalling, long crank times, surging, bucking, poor transmission shifting.





Chevy Trailblazer misfire DIY diagnosis - step one - p0301 p0302 p0303 p0304 p0305 p0306
Here I have a Chevy Trailblazer with a P0302 - cylinder #2 misfire. I show you the basic troubleshooting steps that you can do that only require a code reader and a few hand tools. This procedure can be done regardless of which cylinder is misfiring. First, I swap the coil of the misfiring cylinder with another cylinder. At the same time, I swap the plug of the misfiring cylinder with another cylinder that is NOT the one that I swapped coils with. I then clear the codes and then run the engine. If the misfire moves to the cylinder that I swapped coils with, then I have a bad coil. If the misfire moves to the cylinder that I swapped plugs with, then I have a bad plug. If the misfire stays on the same cylinder, the problem lies elsewhere. Further steps will be shown in future videos. Big thanks to Bill (Kristis Dad) from trailvoy for donating the bad coil!!! UPDATE June 2013 - I know you can also unplug the coils with the engine running to isolate the cylinder. If you want to show that to these guys, how bout YOU make a video. When the average youtube user, who doesn't have much experience doing stuff like that, gets hurt, YOU can live with that on your conscience. I know I couldn't. SMFH.





Secondary Ignition Waveforms (common faults)
In this video, I am showing the following problems: 1. A no fuel misfire 2. An open plug or wire 3. A shorted plug or wire 4. A coil output test





Misfire caused by a vacuum leak
Intake Runner Vacuum leak (water test) This is the second case study I uploaded to go with my "Vacuum leak testing without a smoke machine" video/lecture. Hope you like it.





2004 Saturn Ion 2.2 Misfire Case Study (P0300)
To learn more about Engine Performance Diagnostics, go to www.scannerdanner.com This video covers primary ignition operation and coil current ramping on a waste spark ignition system. The engine that is in this Saturn Ion is a Chevy 2.2L Ecotec and is the same engine used in the Chevy Cavalier. Some other highlights of this video: How to use misfire counters on scan data. Transistor operation and testing. Ignition coil current ramp analysis. How to check resistance of an ignition coil on an Ecotec engine. How to check an ignition module with a test light.





Labscope Relative Compression Testing
Sometimes it's very hard to gain access to spark plugs in order to perform a compression test. Here is how to do a relative compression test with a labscope.





Solving Engine Performance Issues (Part 1) - EricTheCarGuy
Visit me at: http://www.ericthecarguy.com/ See Part 2 http://www.youtube.com/watch?v=sAKwCzUE_9M Vacuum leaks http://www.youtube.com/watch?v=9CPqbaSgcok+ Voltage leaks http://www.youtube.com/watch?v=x-U9WqJfaJs Power Balance http://www.youtube.com/watch?v=bAOmUjAjNjE Compression testing http://www.youtube.com/watch?v=X_tbksFYhl4 Leak down testing http://www.youtube.com/watch?v=WgrfT0LFMhc&feature=relmfu I get a lot of questions via email and over at the forum about the steps to take when you encounter a performance issue like my Subaru's hesitation issue and I often feel like I sound like a broken record when I cover the basic steps that I cover when encountering a situation like that. My main point here is that if you have a performance problem and you're going to throw parts at the problem start with the basics before you to off and start replacing sensors that you suspect are a problem, if you don't have evidence of a faulty sensor then don't start there start with the simple tune up items and check for vacuum leaks and air leaks as I've shown here and I believe you'll have better results and save yourself some money in the process. In short the rule of KISS applies, Keep It Simple Stupid. If you have questions about your own engine performance issues head over to my website and either ask the search function or ask the forum, we'd be happy to help. http://www.ericthecarguy.com/forum/default.aspx --- Click below and Stay Dirty Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://www.ericthecarguy.com/forum/default.aspx Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy --- Stay dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy 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 EricTheCarGuy, 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 EricTheCarGuy.





Changing Trailblazer Sparkplugs
Changing Trailblazer Sparkplugs





1999 Dodge Avenger Misfire Case Study
A good review of Sections 21 and 22 of my eBook available at www.scannerdanner.com In this video I show how to properly troubleshoot a misfire condition caused by a misadjusted crankshaft position sensor.





2002 Chevy Cavalier No Start (a direction based approach)
A great case study dealing with some of the variables of no start diagnostics. For more DIY engine performance testing and diagnostics go to www.scannerdanner.com





2002 Ford Escape 3.0 Misfire Case Study
Within this video I am covering parts of Section 1 and Section 22 in my eBook available at www.scannerdanner.com. For more on the Picoscope and the WPS500 pressure transducer I am using go to www.picoauto.com.





How To Perform a Parasitic Draw Test - EricTheCarGuy
http://www.ericthecarguy.com/ This video has been a long timing coming and is one of the most requested things I get is about batteries going dead overnight so I'm very happy to finally bring you this video about the process of finding a parasitic draw which is a small drain on a battery above 50ma when the vehicle is shut off. Once you find the right fuse(s) the next step is to trace the components involved in that circuit till you find the source of the draw, you first start with a wiring diagram to give you an idea of where to start looking and then start unplugging things in that circuit to isolate the cause, it's quite scientific really a simple process of elimination. Here is a link to BBB's site that you can use to look up wiring diagrams for your application. http://www.bbbind.com/tech_database.html Good luck and if you have anymore questions check the database on my website and if you don't find what you're looking for there then post your question to my forum, here's a link. http://www.ericthecarguy.com/forum/default.aspx --- Click below and Stay Dirty Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://www.ericthecarguy.com/forum/default.aspx Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy --- Be safe, have fun, and stay dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy 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 EricTheCarGuy, 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 EricTheCarGuy.





Using Idle Air Control (IAC) position to ID a vacuum leak
This is the first of two case studies that will re-enforce my "Vacuum leak testing without a smoke machine" video/lecture.





2000 Chevy S10 2.2L No Start (Part I)
For more on Engine Performance Diagnostics check out www.scannerdanner.com This video is part one of a two part series. The following testing methods are shown: How to check for spark, how to test if an engine is getting fuel when a test port is not available, how to perform a relative compression test with a picoscope, how to test if ignition timing is correct using a scope, how to test a 7x crank sensor, and how to test a hall effect cam sensor. I also show some of variables to the relative compression/timing test and how the results at times can be misleading.





Which car is faster? Which Car is Faster?




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