The SD70ACE's in general have the same electronic issues that were present dating back to the SD9043MAC's and SD90MAC-H's because the same junk from Siemens was used by EMD. Siemens technology was difficult to diagnose and deal with,espiecally since it was German. The electronic cabinets actually get really hot and many of the earlier SD70ACE's didn't have insulated/isolated cabs which is why the crews hate these units. SD70ACE's also get more traction motors replaced than most other EMD units and even GE units at that. To replace inverters,unlike GE units,the entire HTC R trucks have to be disassembled which is more time and money at the shop. Alot of the cab related problems were the result of Greenbriar Berkshire (EMD's short lived parent company at the time) cutting down costs as much as possible before CAT/PRLX took over EMD. The SD90MAC's and SD70ACE's with the problems that arised during and after production are what truly brought down EMD after it was a slow decline for many years when GP40-2 & SD40-2 production was discontinued.
Nice video, wish these units stayed around longer on CSX. Just one little note, CSXs weren’t AH units and UP also still let’s their thunder cabs lead. Only BNSF banned them from leading, which is why theirs never even got PTC. These units are very lesser known in the history of CSX so I’m glad to see some people acknowledging them, as they were pretty awesome
NS SD70M-2s are being rebuilt into what are called SD70ICCs, complete with new isolated cabs. These are really SD70ACEs but are labeled differently for reasons that I don’t know.
@@armandoperez7967 They are labeled "ICC" for the new Isolated Comfort Cabs that they received when they were rebuilt, which are a lot quieter and more comfortable for crews because they have a rubber seal between them and the frame, drowning out noise and vibration.
Glad to see some videos that you did in my home town over here in western Mass in the Pittsfield area I remember one of those sd70 aces were brand spanking new employee they were sweet sounding even working the mountain out of Pittsfield ma
Sad that they had to leave so soon. If it was possible, they could’ve sent them back to EMD to resolve the noise issues, but then again PSR implementation likely made that decision insufficient since all of the ACes were sold off. Just so you know, that NBSR photo at 9:54 is an SD70M-2
@@buccaneerrailfanning1776 yeah CN had 4 ACes. You got the CN unit correct. It’s just the NBSR unit at the top middle. The best way to distinguish an ACe from an M-2 is the large inverter box behind the conductor side cab. The ACe would have 2 horizontal vents and the M-2 has 3 horizontal panels. It was probably hard to tell them apart because they’re both nearly identical, unlike their predecessors. I couldn’t even distinguish them at first myself lol
Doubt they could’ve fixed the sound issues. If they were gonna add the rubber insulation they’d have to cut through the frame of the cab (not a very easy task). NS is just now doing that with those two SD70M-2 rebuilds now, but that might not even be sufficient.
"E. Hunter Harrison took over CSX and implemented PSR" - that pretty much explains what happened to alot of the locomotives in a nutshell....and railroading in general!
Hey man, what a great video, i love it, I'm actually starting work on my own series, Engines of Norfolk Southern, which no one else has done before at least from what i know.
2:44 that’s my background wall paper on my brand new iPad *10th generation* But other than that, I really enjoyed your video my dude, it’s a really good explanation too!
Something interesting is I&O bought alot of ex Conrail Dash 8s and are going to use them Their a hour away from me Since theres alot of Conrail Dash 8 footage
one of the biggest problems the sd70 had was the motors couldn't be cut out individually you had to cut out an entire truck at a time the power loss fo rom it would cause trains not be able make their runs in the mountains
Amazing catches of the train coming by and pass, I like it 5 stars. Thumbs up. Keep up the great work, my friend, i subbed your channel, Greetings from Portugal to the USA.
Union Pacific is the only railroad that still owns their 90 SD70ACE-T4's. CSX sold their 10 ST70AH-T4's to PRLX and have ended up on leasing to Ferromex with the rest of the other SD70ACE-T4's...Good riddance. The SD70ACE-T4's were actually built in rivalry to the ET44AH's,not the ES44C4's that BNSF owns. Regardless,the SD70ACE-T4's are completely useless and make any previous EMD units look like superior products (Minus the SD9043MAC's & SD90MAC-H's). CAT/PRLX right now has the SD70H demonstrator which is literally a hybrid variant of the SD70ACE-T4 but I'm sure it will also fail. EMD never made a solid recovery since the SD90MAC's. Both the SD70ACE-T4's and ET44AH's actually consume more fuel than any tier three or even tier two units,both EMD and GE. EGR is to blame rather than DEF. The only reason why the railroads took interest in the tier four units was because of tax write off's. Obviously any of them have figured out that certain older units don't need to be adhered to modern EPA regulations which is why there has been a good amount of rebuilds for both EMD and GE units.
EMD introduced the isolated cab for the SD70ACe in late 2006/early 2007 due to the 'Thundercab' reputation and the non-iso cabs haven't been seen since on new build ACes, it was never just limited to the -P4.
@@buccaneerrailfanning1776 it should've clicked for me sooner, 1204-1205 were -P6 demos, not -P4s. 1202-1203 were standard SD70ACe, 1211-1212 that went on to Tacoma Rail were the P4s (and I think 1207 was also a -P4 later on). IIRC CSX tested 1202-1203, 1204-1205 and 1209-1210 (the latter 2 pairs being -P6 model)
@@speedymouse2859 It's hard juggling around all this Info in my head and on notes lol, I've made mistakes in every video wether they be small or big like my SD70MAC video lol
Csx is sd70 fleet confuse me so what is the sd70ac as I’m positive that csx does not have Macs but I’ve been told different that the ac is a Mac and I thought csx doesn’t like SD70Ace being a unique to NS but that’s why I came here to learn
Wasn't a big fan of these engines or motors as they were called on parts of CSX. We called them "Thundercabs" and for a good reason. They were noise buckets. And hey....I was a railfan before I was a railroader. Just being real about the feature locomotive.
@@buccaneerrailfanning1776I love the #4834, especially cause even though it was a false heritage unit, I think it looked neat-o. 😂😅I love the C&O markings on it. It is hoped the C&O markings might come back sometime soon. I hope. Greetings from West Virginia.
CSX just recently returned the T-4's. It had issues in the beginning but I believe EMD/Progressive worked them out. UP has 90+ in their system. Have seem them on NS from time to time. Its a nice design but why couldn't they make them Tier 3 credit units. Just switch out the prime mover and electronics.
CSX only had 2 ST70-AH units they were tier 4 1010 V-12 /w 3 turbo chargers 2 low pressure 1 high pressure they were 4500HP detuned to 4300 and used EGR instead of DEF, the prime mover is, 4-stroke and a top speed of 900 rpm . CSX sold them back to progress rail, UP has 100 , I've only seen two of those in use, NS has none that I know of nor does BNSF. No one is talking about the tier 4 much, other than it's not well liked.And no specifics.
It might be me but CSX has a thing of not having ACes around, they retired their ACe-T4s, which is understandable and sad because the ACE-T4 were not reliable and it's a shame that CSX never got the chance to join the ACE party like with BNSF, NS, UP and others did. GMD ACE supremacy lad
@@thedwaynerailfansWHAT?! THAT'S THE CRAZIEST THING I EVER HEARD! Well, second craziest. The first craziest thing I ever heard if was CSX returning their ST70AHs. I still do not know the reason why CSX sold their SD70AHs and ST70AHs back to PRLX!😂😅Ironic, isn't it?
Aces lead on up all the time (thank god) But up guys can sometimes mysteriously be heard grumbling *"fuckn sd70s (or macs) fuckn loudest engines ever, fuckn scrap e'm all!"*
EMD is pretty much finished. Their tier 4 SD70 is a complete failure with UP being the sole purchaser. Even the 4 year old demos have already been thrown on a Kentucky dead line and marked for scrap. 100% JUNK!
Absolute shitboxes. I always liked the looks of the SD70ACe when I was a kid, but in the past 15 years working on them I’ve come to realize they’re poor locomotives compared to their GE counterparts, whether referring to reliability or comfort. When they’re happy and healthy they’re good pulling units, but they’re mostly cantankerous pieces of shit.
Thanks for this I never knew why CSX didn't like their ACes
The SD70ACE's in general have the same electronic issues that were present dating back to the SD9043MAC's and SD90MAC-H's because the same junk from Siemens was used by EMD. Siemens technology was difficult to diagnose and deal with,espiecally since it was German. The electronic cabinets actually get really hot and many of the earlier SD70ACE's didn't have insulated/isolated cabs which is why the crews hate these units. SD70ACE's also get more traction motors replaced than most other EMD units and even GE units at that. To replace inverters,unlike GE units,the entire HTC R trucks have to be disassembled which is more time and money at the shop. Alot of the cab related problems were the result of Greenbriar Berkshire (EMD's short lived parent company at the time) cutting down costs as much as possible before CAT/PRLX took over EMD. The SD90MAC's and SD70ACE's with the problems that arised during and after production are what truly brought down EMD after it was a slow decline for many years when GP40-2 & SD40-2 production was discontinued.
Sd40-3 or SD59-2.
In my opinion, SD40-3
The SD70ACE is also very popular on some Class 3 Railroads
I like the first gen K5LLA and it’s my favorite horn.
1:16 Where’s the background footage location? Also great video!
I was lucky enough to have actually caught a CSX SD70ACe-T4 three years ago. I don't remember much of it if I'm being honest, but I have a few photos
C39-8, while csx only had a few units they’re unique and there’s only one left in service on the Pennsylvania northeastern railway
Great video, educational and well put together! Cheers from Canada 🇨🇦
Thank you very much!
So glad it’s back. I really hope the SD60I‘s and M’s come out after the CW60AC.
Loved this video, now it's time for: Engines of CSX: SD40-3
Nice video, wish these units stayed around longer on CSX. Just one little note, CSXs weren’t AH units and UP also still let’s their thunder cabs lead. Only BNSF banned them from leading, which is why theirs never even got PTC. These units are very lesser known in the history of CSX so I’m glad to see some people acknowledging them, as they were pretty awesome
I feel bad for th UP crews lol
@@buccaneerrailfanning1776 NS's SD70M-2s are just as bad. Hopefully the planned rebuilding program goes through.
@someguywholikestrains1234 I think the SD70M-2s are going through a rebuild program
NS SD70M-2s are being rebuilt into what are called SD70ICCs, complete with new isolated cabs. These are really SD70ACEs but are labeled differently for reasons that I don’t know.
@@armandoperez7967 They are labeled "ICC" for the new Isolated Comfort Cabs that they received when they were rebuilt, which are a lot quieter and more comfortable for crews because they have a rubber seal between them and the frame, drowning out noise and vibration.
Good documentary!
Wish CSX still had their ACEs. Would make the roster much better than what it currently is.
9:56 CN only having 4 SD70ACes (iirc) lol
The rest are SD70M-2s, the DC version.
Glad to see some videos that you did in my home town over here in western Mass in the Pittsfield area I remember one of those sd70 aces were brand spanking new employee they were sweet sounding even working the mountain out of Pittsfield ma
THE VERY FIRST CLIP IS FROM MY HOMETOWN THE INTRO TO ONE TOBE EXACT 0:00
Excellent video! Glad you supplied the credit with the clips! If you need footage of other equipment, feel free to reach out!
I appreciate it! Say, do you have anything on the AC6000s? I plan on making a remake of my AC6000 video!
WOW, great job...My favourite locomotive has always been the SD40-2. I know it must have been LOUD... but she still looked very cool...
EMD: Awwww... Seems like i lost an Opportunity to be the King again....
NS: I got you Bud *Orders moar SD70ACes*
EMD: THANKS!!
AC6000CW. My personal favorite GE locomotive
I like the SD70 locomotives, and the horn sounds of the SD70s. Are the SD70s Gevos?
No, the GEVOS are made by General Electric, the SD70 series is made by EMD, now progress rail.
Great video and merry Christmas too.
Sad that they had to leave so soon. If it was possible, they could’ve sent them back to EMD to resolve the noise issues, but then again PSR implementation likely made that decision insufficient since all of the ACes were sold off. Just so you know, that NBSR photo at 9:54 is an SD70M-2
Didn't CN have ACes? Was worried I got them mixed up with the SD70M-2s, I could only tell by the locomotive number
@@buccaneerrailfanning1776 yeah CN had 4 ACes. You got the CN unit correct. It’s just the NBSR unit at the top middle.
The best way to distinguish an ACe from an M-2 is the large inverter box behind the conductor side cab. The ACe would have 2 horizontal vents and the M-2 has 3 horizontal panels.
It was probably hard to tell them apart because they’re both nearly identical, unlike their predecessors. I couldn’t even distinguish them at first myself lol
Doubt they could’ve fixed the sound issues. If they were gonna add the rubber insulation they’d have to cut through the frame of the cab (not a very easy task). NS is just now doing that with those two SD70M-2 rebuilds now, but that might not even be sufficient.
thats not the only reason why they were sold off. they were heavily unreliable, they were rushed pre productions
"E. Hunter Harrison took over CSX and implemented PSR" - that pretty much explains what happened to alot of the locomotives in a nutshell....and railroading in general!
Hey man, what a great video, i love it, I'm actually starting work on my own series, Engines of Norfolk Southern, which no one else has done before at least from what i know.
I will like to see the C40-8 Standard Cab & the C44-9W
Well done!
Thank you! Glad to see you are still checking in. Perhaps we could arrange another collaboration?
What if NS buys then and covert them to SD70ACC or rebuild the cab.
Stranded cab dash 8s I have a ton of them from Pan am and 7627 before repaint
2:44 that’s my background wall paper on my brand new iPad *10th generation*
But other than that, I really enjoyed your video my dude, it’s a really good explanation too!
That's very nice bro!
@@JerrytheRailfanner6103 epik
Hopefully you get the AC6000 Episode REUPDATED thankfully I watched it before it got taken down but stupid TH-cam for copystriking it.
You should do another EMD build locomotive but build for many of its predecessor railroads like the SD40-2 or even the F Units that CSX once used
Nice video
1:17 good oll marion union Station
*Merry Christmas!! The next engine you should do after the remastered AC60 video you should do GP38-2 I filmed one with a Leslie RS5T RRO!*
Just maybe
2:53, SEVERE ISSUES with the Cab.
Phase 1 EMD Wide cab just looks better in My Opinion. And it Seems THEY ARE BETTER.
4834 is stored in East Saint Louis Illinois, near where I live
Lets get the SD40-2s or GP39-2s next! Both classes of locomotives have a lot of history behind them.
Something interesting is I&O bought alot of ex Conrail Dash 8s and are going to use them
Their a hour away from me
Since theres alot of Conrail Dash 8 footage
one of the biggest problems the sd70 had was the motors couldn't be cut out individually you had to cut out an entire truck at a time the power loss fo
rom it would cause trains not be able make their runs in the mountains
but when running right they will out pull a ge anyday of the week
interesting that a lot of the issues the ACe had, could have been avoided if they kept a similar design to the SD70M
Good video,I wasn't aware that the original sd70aces were bad.
Nice Nathan KL5 Diesel Horn,0:09
7:14 those videos were literally taken where i railfan 😂
After the remake of the AC6000, can you make an SD60I or ES40DC also great vid of the SD70ACE
SD60 has been begged for a lot, But I am looking at the SD40.
Oh alr
Amazing catches of the train coming by and pass, I like it 5 stars.
Thumbs up.
Keep up the great work, my friend, i subbed your channel, Greetings from Portugal to the USA.
Your next video should be on the SD70ACe T4, Which is EMDs rival to the ET44C4. UP and CSX are the only railroads that have them.
He already covered the SD70ACE-T4, although it might get a remake in the future.
Union Pacific is the only railroad that still owns their 90 SD70ACE-T4's. CSX sold their 10 ST70AH-T4's to PRLX and have ended up on leasing to Ferromex with the rest of the other SD70ACE-T4's...Good riddance. The SD70ACE-T4's were actually built in rivalry to the ET44AH's,not the ES44C4's that BNSF owns. Regardless,the SD70ACE-T4's are completely useless and make any previous EMD units look like superior products (Minus the SD9043MAC's & SD90MAC-H's). CAT/PRLX right now has the SD70H demonstrator which is literally a hybrid variant of the SD70ACE-T4 but I'm sure it will also fail. EMD never made a solid recovery since the SD90MAC's. Both the SD70ACE-T4's and ET44AH's actually consume more fuel than any tier three or even tier two units,both EMD and GE. EGR is to blame rather than DEF. The only reason why the railroads took interest in the tier four units was because of tax write off's. Obviously any of them have figured out that certain older units don't need to be adhered to modern EPA regulations which is why there has been a good amount of rebuilds for both EMD and GE units.
Finally thank you
EMD introduced the isolated cab for the SD70ACe in late 2006/early 2007 due to the 'Thundercab' reputation and the non-iso cabs haven't been seen since on new build ACes, it was never just limited to the -P4.
Yes but the iso cab SD70ACE was never tested by CSX, only the P4, I was explaining the difference between what CSX had and what they were testing
@@buccaneerrailfanning1776 it should've clicked for me sooner, 1204-1205 were -P6 demos, not -P4s. 1202-1203 were standard SD70ACe, 1211-1212 that went on to Tacoma Rail were the P4s (and I think 1207 was also a -P4 later on).
IIRC CSX tested 1202-1203, 1204-1205 and 1209-1210 (the latter 2 pairs being -P6 model)
@@speedymouse2859 It's hard juggling around all this Info in my head and on notes lol, I've made mistakes in every video wether they be small or big like my SD70MAC video lol
awesome video!
Csx is sd70 fleet confuse me so what is the sd70ac as I’m positive that csx does not have Macs but I’ve been told different that the ac is a Mac and I thought csx doesn’t like SD70Ace being a unique to NS but that’s why I came here to learn
CSX classifies their SD70MACs as SD70AC
Can you make a video about the sw1500 pls. 🙏🏾
I wanna see their F units
Nice
What about road slug set.
Amazing EMD managed to screw up so many times after the SD40-2. Basically just handed GE the business by making inferior products.
Wasn't a big fan of these engines or motors as they were called on parts of CSX. We called them "Thundercabs" and for a good reason. They were noise buckets. And hey....I was a railfan before I was a railroader. Just being real about the feature locomotive.
Why does csx call the SD70ACE the SD70AH even though EMD has the SD70AH
CSX only allows 6 prefixes for engine models apparently.
@@buccaneerrailfanning1776 At least it’s not UP calling a gevo a AC45CCTE
@@OG-Productions😂😅Problem is, UP calls their ES44AC the AC45CCTE.
@@buccaneerrailfanning1776I love the #4834, especially cause even though it was a false heritage unit, I think it looked neat-o. 😂😅I love the C&O markings on it. It is hoped the C&O markings might come back sometime soon. I hope. Greetings from West Virginia.
I never saw 4831.... but i saw 4832 and 4850 and a variety of units in between. PS- the RJ corman engines are ex NS Flared MAC's
They are SD70M-2s I thought
They are former NS, but they are just SD70Ms.
Whats the song when the video starts i wana use it in my own vids
Make the GP35 next and ac6000cw next
No I hope SD60I and M after the CW60
The AC6000 remake is next
@@buccaneerrailfanning1776 great. After the AC6000 can we see the EMD SD60Is and Ms that Conrail had
Ac6000 okay
@@buccaneerrailfanning1776CSXs SD70AHs were pretty clever locomotives. 😂😅
you should do the F units from like the 80s next
CSX just recently returned the T-4's. It had issues in the beginning but I believe EMD/Progressive worked them out. UP has 90+ in their system. Have seem them on NS from time to time. Its a nice design but why couldn't they make them Tier 3 credit units. Just switch out the prime mover and electronics.
CSX only had 2 ST70-AH units they were tier 4 1010 V-12 /w 3 turbo chargers 2 low pressure 1 high pressure they were 4500HP detuned to 4300 and used EGR instead of DEF, the prime mover is, 4-stroke and a top speed of 900 rpm . CSX sold them back to progress rail, UP has 100 , I've only seen two of those in use, NS has none that I know of nor does BNSF. No one is talking about the tier 4 much, other than it's not well liked.And no specifics.
Pov: you buy the false hertige unit to put c&o logos on it again
Btw im gonna do it 10k subs
But I’ve seen aces lead on BNSF lines before ?
He never said they didn’t. He said the original ones without isolated cabs don’t lead, which is accurate.
@@ZachPumphery oh
Do the SD45-2 next or the SD60I
It might be me but CSX has a thing of not having ACes around, they retired their ACe-T4s, which is understandable and sad because the ACE-T4 were not reliable and it's a shame that CSX never got the chance to join the ACE party like with BNSF, NS, UP and others did.
GMD ACE supremacy lad
the ACe-T4s werent retired, they were on lease that expired
@@thedwaynerailfansWHAT?! THAT'S THE CRAZIEST THING I EVER HEARD! Well, second craziest. The first craziest thing I ever heard if was CSX returning their ST70AHs. I still do not know the reason why CSX sold their SD70AHs and ST70AHs back to PRLX!😂😅Ironic, isn't it?
ST70AH
Emd switchers or gp 1500 plz
Either do ET 44 AC or if not the AC 6000
Yessss!!!
Aces lead on up all the time (thank god)
But up guys can sometimes mysteriously be heard grumbling *"fuckn sd70s (or macs) fuckn loudest engines ever, fuckn scrap e'm all!"*
MERRY KRIMAAAAAAAAAAAAAAAAAAAAAAAAAA
EMD is pretty much finished. Their tier 4 SD70 is a complete failure with UP being the sole purchaser. Even the 4 year old demos have already been thrown on a Kentucky dead line and marked for scrap. 100% JUNK!
Finally
crazy
STAY CAV!!
UP SD70M
W ,
Absolute shitboxes. I always liked the looks of the SD70ACe when I was a kid, but in the past 15 years working on them I’ve come to realize they’re poor locomotives compared to their GE counterparts, whether referring to reliability or comfort. When they’re happy and healthy they’re good pulling units, but they’re mostly cantankerous pieces of shit.