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MGU Failure at 85k...looking for advice

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Wing_Nut

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Greetings,
I am the unfortunate owner of a 2020 1500 with the 5.7 hemi and eTorque (4x4, limited trim) which I purchased new. Ironically, I traded up from a 2014 EcoDiesel because I was worried about engine reliability. Reliability hasn't been great with the 5.7. At 2650 miles, cylinder No. 2 rocker arm broke. It was fixed under warranty. At 66k miles, cylinder 3 lifter collapsed. I paid out of pocket to fix since the warranty was expired. Now at 85K miles, the MGU has failed. Again, I would be paying out of pocket except they aren't available and back ordered. I understand it will be months delayed.

Does anyone have any advice on how best to get an MGU? I cannot afford to go months without a functional vehicle...essentially a 5500 pound paper weight at this point.

Is this something I can contact @RamCares for assistance? Right now my truck is not at a dealership, but rather a local, independent repair shop but I question if they can even get an MGU from the local delaership.

Any help is appreciated.
 
Wing_Nut said:
Greetings,
I am the unfortunate owner of a 2020 1500 with the 5.7 hemi and eTorque (4x4, limited trim) which I purchased new. Ironically, I traded up from a 2014 EcoDiesel because I was worried about engine reliability. Reliability hasn't been great with the 5.7. At 2650 miles, cylinder No. 2 rocker arm broke. It was fixed under warranty. At 66k miles, cylinder 3 lifter collapsed. I paid out of pocket to fix since the warranty was expired. Now at 85K miles, the MGU has failed. Again, I would be paying out of pocket except they aren't available and back ordered. I understand it will be months delayed.

Does anyone have any advice on how best to get an MGU? I cannot afford to go months without a functional vehicle...essentially a 5500 pound paper weight at this point.

Is this something I can contact @RamCares for assistance? Right now my truck is not at a dealership, but rather a local, independent repair shop but I question if they can even get an MGU from the local delaership.

Any help is appreciated.
Click to expand...
Good luck because it seems there is months long back order.
 
We are sorry to hear this. Some parts are on back order at the moment; we are closely working with suppliers on getting this issue resolved. We unfortunately are unable to assist when working with an IRF. Should you choose to order through a certified CDJR dealer, feel free to reach out via private message for support.

Diamond
Ram Cares
 
Better get to a Ram dealer asap or you may never get the part. I ordered ne and it took 6 months.
 
Wing_Nut said:
Greetings,
I am the unfortunate owner of a 2020 1500 with the 5.7 hemi and eTorque (4x4, limited trim) which I purchased new. Ironically, I traded up from a 2014 EcoDiesel because I was worried about engine reliability. Reliability hasn't been great with the 5.7. At 2650 miles, cylinder No. 2 rocker arm broke. It was fixed under warranty. At 66k miles, cylinder 3 lifter collapsed. I paid out of pocket to fix since the warranty was expired. Now at 85K miles, the MGU has failed. Again, I would be paying out of pocket except they aren't available and back ordered. I understand it will be months delayed.

Does anyone have any advice on how best to get an MGU? I cannot afford to go months without a functional vehicle...essentially a 5500 pound paper weight at this point.

Is this something I can contact @RamCares for assistance? Right now my truck is not at a dealership, but rather a local, independent repair shop but I question if they can even get an MGU from the local delaership.

Any help is appreciated.
Click to expand...
I would go through a dealer. A good one can find you an mgu sometimes and get it shipped to them. Mine went out and I had my truck fixed and back to me in 8 days back in September.
 
The MGU is covered under 8 yr emission warrenty.. dont let dealer bs you....had mine done last summer.took 9 weeks to get parts..covered by warrenty om my 21
 
being that "RAM CARES" trolls us here can R.C answer why they have literally thousands of MGU's they are installing on every new penstar and hemi being built daily but can't release any for warranty repairs......don't blame the supplier you guy's are more interested in the profit from a new truck sale then keeping existing customers happy.
not a good look man. you are bleeding customers over this. you really need to concentrate on actual customer service.
i'm mad about it and i don't even have a MGU on my truck.
 
The OP has 85,000 miles. Warranty is 8 years OR 80,000 miles.
OP, are you having a charging issue or is it making noise(bearing(s)?
 
Wing_Nut said:
Greetings,
I am the unfortunate owner of a 2020 1500 with the 5.7 hemi and eTorque (4x4, limited trim) which I purchased new. Ironically, I traded up from a 2014 EcoDiesel because I was worried about engine reliability. Reliability hasn't been great with the 5.7. At 2650 miles, cylinder No. 2 rocker arm broke. It was fixed under warranty. At 66k miles, cylinder 3 lifter collapsed. I paid out of pocket to fix since the warranty was expired. Now at 85K miles, the MGU has failed. Again, I would be paying out of pocket except they aren't available and back ordered. I understand it will be months delayed.

Does anyone have any advice on how best to get an MGU? I cannot afford to go months without a functional vehicle...essentially a 5500 pound paper weight at this point.

Is this something I can contact @RamCares for assistance? Right now my truck is not at a dealership, but rather a local, independent repair shop but I question if they can even get an MGU from the local delaership.

Any help is appreciated.
Click to expand...
How did the MGU fail?
If the bearing failed, then there is a DIY tutorial here on the forums on how to fix that.
 
I ended up pulling the MGU and replacing the bearings myself. The rear bearing looks to be undersized (6003) compared to the front bearing (6305). The front was still good but I replaced both anyway with Nachi deep groove bearings. The factory bearings were SFK which is a really good bearing. This wasn't the easiest DYI job for those thinking of doing it themselves. You'll need a shop press to get the front bearing out (and back in) and a set of bearing splitters to remove the drive pulley. Be aware this wasn't made to be opened up and worked on. In all it took me about 10 hours broken up into 3 days. The hardest part was actually getting the MGU removed from the mounting pedestal and then back on the pedestal after the overhaul - it's a very tight fit and I spent quite a bit of time with a rubber mallet tapping it into position. Good luck to anyone that decides to go this route.
 
Glad to see you got it sorted out.

My truck having the e torque I’ve thought about the possibility of this happening to me and not being able to get parts. That being said there’s a guy a couple towns over who rebuilds alternators out of his garage, I would think one with that skill set would be able to rebuild/repair these units quite easily.
 
Here’s the link to the local guy who rebuilds this type of stuff. Might be worth giving him a call if you have a truck sitting waiting for parts.

Seems the father has passed away but the son is still operating. it’s an impressive operation for running it out of their garage. They rebuilt a 100 amp alternator for a big block Mopar for me a few years back.

 
Look for motor repair shops and see if they'll replacing the bearings if you bring them the bare motor / generator. Most towns of moderate size have one. You'll need to at least remove the MGU and take the speed control unit, sensors, and drive pulley off. Be warned - removing the drive pulley is challenging. I ended up using bearing splitters to pull from the top lip of the pulley. I used a 1/2 inch air impact and that would remove it so I ended up using MAPP gas to heat the pulley and eventually it popped off. If you want to get the bearings in advance, the front is a 6305 2RS and the rear is a 6003 2RS. Use a good brand of bearing (SFK, Timken, ***, Nachi, etc.) as the replacement if you can source them.

As a warning to everyone seeing this...if your bearings start whining you should take action immediately. If you wait and the bearings completely fail, the rotor will contact the stator and your goose is cooked. At this point you're waiting in line at the dealership for a new unit to arrive.
 
Did you have an indication that it was beginning to fail? I'm getting a whining sound that is 100% coming from my alternator / MGU whatevertheheck they call it now. I'm hoping it's the really cold weather, but your post has elevated my concern.
 
As a warning to everyone seeing this...if your bearings start whining you should take action immediately. If you wait and the bearings completely fail, the rotor will contact the stator and your goose is cooked. At this point you're waiting in line at the dealership for a new unit to arrive.

--OK I read the last post now.....crud
 
Get a mechanics stethoscope and make sure it's the MGU and not the tensioner pulley or idler pulley. I hold out hope that the whining sound I would hear, especially when it was cold, was something other than the MGU but alas I struck out.

Are you pretty handy with tools and working on things? You could at least remove the MGU belt and test the pulleys by spinning them manually to see which is dragging.

Also - if you're close to East Texas I don't mind giving you a hand.
 
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