![]() ![]() I’m going to try to link a video of the valves here in a moment. So far the problem has not returned but tomorrow will be the big test I have a 2 Hour drive to Albany New York and then back. Or Maybe it could be the hydraulic lifters are getting stuck in the collapsed position Due to sludge buildup?īut ever since I had the problem 4 years ago with my other Durango I always use a bottle of engine flush before oil changes.Īnd of course it could always be an issue with the computer doing bad things. And because I did not get a OEM solenoid there’s a greater chance than normal it could be a defective part maybe it’s jamming up in the open position So if it was a wiring issue i would think it would be a problem opening not closing. The solenoid it self only has two wires so I imagine when power is applied it will pop open and when power is removed there must be a spring or magnet that pushes/pulls it back. Or does the oil pressure push on a locking pin allowing lifters to collapse? So I wondered if oil pressure/blocked passage would cause problems with engaging or disengaging? Are the hydraulic lifters naturally pressurized when MDS is off? Like do they fill up with oil pressure and expand the lifters? A oil flush and oil changed fix that problem that was four years ago never returned. But it was the complete opposite it was having a problem going into four-cylinder mode. I’ve had a similar problem With the MDS on my other Durango. so I did not witness the valves not opening. Which I was curious about how the system works because I would assume that’s the valves would not open if they were stuck in MDS mode.īut because the issue goes away after sitting and by the time I pull the valve covers off it sat a few days. Thanks for the help guys I was getting ready to pull the intake back off I’m glad I played around with that connector firstĪt the time I had the valve covers off all valves were working properly. Unplugged and reattached main harness to MDS solenoids. Pulled the valve cover to inspect valve function Put a bottle of engine flush and did oil change Time will tell if I have any issues I’ll be sure to update them here for anyone in the future that may Google this.Įngine started running rough. I don’t know if it was the seafoam or not maybe re-plugging in the Harnest got a better connection I don’t know but I haven’t had a problem since then. ![]() ![]() After driving around not even a mile I decided to plug the harness back in to allow solenoids to activate with the seafoam running through it. i’ve been driving around for over an hour and it’s been working as it should.Īfter unplugging the Harnest and not having any rough engine conditions I decided to put some seafoam in it. ![]()
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