Bernie I’m always waiting for your videos please keep up the good work ? I’m gratitude for what you’re doing for the community. I’m leaning a lot from you . I even bought your scan tool . Thanks mr Thompson
I notice since a few moths ago bernie thompson look like he is sick , very low energy and talk slowly , I pray for him he is an excellent teacher and person
I'm the owner of this car. I took it to another shop where they figured it out. The cam was advanced and the vanos solenoid was malfunctioning. They manually reset the cam and got the vanos working correctly. The car drives like a champ now.
hello and thanks for the video, learned a lot, as usual. i actually think that exhaust cam on right bank has jumped aswell, because you can see that it's duration ends way before 180 mark and the pressure starts to rise. i mean 360, my bad.
Thank you so much Bernie. Love all of your videos - really clear and instructive diagnostics to a truly amazing professional level. I have learnt so much from you - which is so helpful and really encouraging. Thank you once again.
Hey Bernie, Love your videos and the tools you have designed and built for diag. I read a comment from the vehicle owner about a vanos solenoid issue. Were there secondary issues affecting the cam timing after the mechanical issues were resolved?
Bernie I’m glad that you look like you’re feeling better. Id like to know if you or your team will hold a training in person. That would be something that I’d like to join. Take care!
Between the computer and the cost to replace the chains , guides , plugged screens and diagnosis , wouldn't it have cost LESS just to change the oil ? Even using synthetic oil on a conservative schedule ? I don't know if those chains can be done without engine removal ! They are in this for several grand . You can get a lot of oil changed for that ! Great diagnosis and lesson .
But he said the reason not to do that, and to use duty cycle, there is a chance to overcook the solenoid. With a jumper wire, you don't now the control time.
When you state what your known good angles of exhaust valve opening before BDC and intake valve opening before TDC are, this is assuming the engine is in its default phasor position, right? Since you have the pressure transducer plugged in, the car sees that there is a dead misfire and probably sets the VVT to a default state, but could it be possible that VVT could mess up the results you observe on the pressure transducer?
That's a great question. I too have found a phasor in it's default position as the cause of a poorly running engine (2000 Maxima w/aftermarket cam sensors installed by a DIYer)... ...so to your point, if the phasors were at default position, the valve would open at a different time. The question is whether phasors default to advanced or retarded timing. My recollection is that they default retarded (which should have the valve opening later (shifted to the right). Hopefully someone who knows can help us out. Once again, another MasterClass!!! 👍👍👍👍👍👍👍👍👍 -100
@@EKHondaMotive I believe that the default standard for base timing for intake is fully retarded, and for exhaust is fully advanced. Once load and rpm pick up, exhaust is advanced less and intake is retarded less, so the timing starts to overlap (acting like an EGR valve).
i wouldn't want to advance a cam that is 50 deg advanced already, like in this video. if the timing is correct it is fine to move all of them however you want, nothing will contact.
@@CubasAutomotive If the intake cam sprocket (or phaser) is sloping around, that would cause the cam to vary in relationship. Everything else would, and seemed to, remain stable. I just didn't get if this was a constant, or a variable. EDIT: I don't know the engine, but a question that changes the equation.... How many chains?
@@HouseCallAutoRepair there are 3 chains... 1 per cam bank to crank, 2 phasers per bank... then a 3rd chain which is from crank to oil pump. 6 guides total.. Not the clearest images on service info. Hope I explained well. So, my thought is 2 signals would be off, not 1.🤔 All 4 phasers vary... and the thing is Bernie stated it was definitely a chain jump issue, not a phaser issue.. Maybe I'm just tired myself and just not grasping it correctly.
@@CubasAutomotive a chain jump would change the cam timing, and the loose chain would cause the variance between pulses, BUT everything on the loose chain would be equally whacky, not just the one cam.... right? Maybe I'm forgetting that the MAIN chain is ok, but one of the small chains is the sloppy one...
