In this video we have a look at a 2006 Jeep Grand Cherokee with the big 4.7 that came in with a customer complaint of an engine light and an obvious misfire at idle. This one was not your run of the mill bad coil pack or injector.
-Enjoy!
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hear it? i can feel it in my desk!!!
Wow… awesome video! I just fixed my Commander with 100% the exact same problem!
Excellent way view relative compression by using a current waveform from the starter.
I have owned several Jeeps in the last 45 years, some were old school V-8, but most of them were the 4.0 liter. Then i owned a 2006 Jeep, 3.7 liter v-6. It blew up idling in the parking lot at work, on a very cold day. Since then, we drive Toyota's !
Imagine how many Jeep owners have had perfectly fine Engines condemned as blown/dead cylinder. When it was just a Rocker off it’s Valve Lifter. You know it’s happened more than once.
Have you ever done a relative compression test with a Uscope??? I don’t have the money for a pico yet.
How is it that other mechanics don't have the knowledge that u have, don't they teach this stuff in school?
What kit for picoscope do you have.. enjoyed the video would like to purchase a picoscope just wanting to get everything as what you used In this video.. thank you
As an owner of a Dodge 3.6L, Ive often wondered myself why the rocker arms dont continually walk out because they can be removed by hand fairly easily.
Best o the best!
Great fix ! Eric you’re the man ! Thanks for sharing this video!
Entertaining AND oh so informative!
Love watch your videos Eric!
Hi, I wanted to take the time to thank you for this quality video content. You do everything "solo" (shooting, repair, screencasts, editing…), yet your videos are of really high quality. Even taking the time to do multiple angles to shoot etc.
I'm not a mechanic, just "interested in car technology" but the amount of knowledge you transport in an easy to follow matter is amazing. I really like your approach of understanding a problem fully first before doing anything and then establishing a way to check that the repair really succeeded. A lot of "solo mechanics" here on YouTube will not do that and it really sets you apart from other mechanics. Also, the approach to diagnose many issues via current draw is a novel concept [to me as an inexperienced viewer] I've only seen on L1's and your channel so far. Others would have relied on visual inspection by endoscope or spray pattern where you just measure current draw.
Out of time