On a gen 3 prius, this part tends to clog and cause head gasket failures. Priuschat people recommend removing the valve and cleaning it periodically (like at 100k miles). Could your valve be removed my a mechanic (not the dealership) and cleaned/repaired? Would that help the problem in the case of a Volt? Otherwise maybe a used one could be procured from a salvage yard?
Sold my 2019 Volt a while back for fear of this (parts shortage) happeneing and it has come true.

 

Thanks for the recommendation. We did have a good mechanic remove it and completely clean the valve.
Unfortunately it didn't work. Apparently something is wrong internally.
The engine only has about 10,000 miles on it. From doing research, this is a problem with many owners.
Also, according to the error message when scanned, there could also be a additional problems.
This is what happens when a company like GM turns there back on a discontinued car design.
Now they want to bring back the Volt. They better take care of the original buyers 1st.

 

Dealer is covering their butts. Unplug the EGR valve electrical connection and replace the F3 fuse, and you can drive the car indefinitely without any issues at all. (Except passing your smog inspection.)

 

That's why I have rehearsed changing the fuse and pulling the EGR power plug. With 96Km my 2018 is going strong. But reading this and other Volt sources, the two biggest problems are the EGR valve clogging and the BECM failure. Perhaps this is just "rabbits foot" stuff, but I am using Unleaded 88 fuel with 15% alcohol hoping that it will help clean the EGR and I'm also running the engine continuously with HOLD mode in situations where the engine would not reach full operating temperature. On the BECM, I'm hoping the problem was solved by the time my late 2018 was built in August of 2018. Who knows? So far, it's been virtually flawless except for the dumb "shift to park" issue which the dealer resolved.

 

While you're at it, file a complaint with the NHTSA at www.safercar.gov. The Volt's EGR valve can cause the car to shut down by blowing the "walk home" fuse. This is a safety issue.

 

Drove it for a couple months while I looked for the part (as you stated, part #12691147, not the old part number you can buy on ebay from China which will fail again). I posted pictures at:

https://www.gm-volt.com/threads/2017-egr-valve-walk-home-fuse-saga-update.339078/page-5#replies

 

I had same issue with 2016 Volt. Drove the car for 2 months without any problem until the dealer replaced the EGR valve. Only issue is that car wouldn't pass a smog test.

 

I once owned a used, manual Honda Accord that I babied to squeeze 42 mpg out of. Within one year my EGR was clogged up. The Honda Tech told me that the only people who had that problem were the ones who "drove like old ladies" (apologies to any old ladies reading this) and I should, once a week, take it thru the gears, redlining to "blow the carbon out of it." I did that and put another 250,000 miles on it without clogging the EGR.

I also drove a G1 Honda Insight which is notorious for clogged EGRs because they run cold and owners soft-pedal them to maximize the mileage. I did the same in it and never had a lick of trouble.

Since I can't spin the engine up on the Volt with the gas pedal, everyone once in a while, I'll drop the battery down to two bars, drive 75, put it into Mountain mode and let the doggone thing work a little harder than usual. I don't know if that helps, but I figure it can't hurt.

 

I once owned a used, manual Honda Accord that I babied to squeeze 42 mpg out of. Within one year my EGR was clogged up. The Honda Tech told me that the only people who had that problem were the ones who "drove like old ladies"

That Honda Tech must have been a young kid who never listened to The Little Old Lady from Pasadena ...
"
She drives real fast and she drives real hard
She's the terror of Colorado boulevard
It's the little old lady from Pasadena
"
I bet her EGR was never clogged.

 

.
The EGR Valve part #12691147 is not available. It has not been available for months. And this is worldwide.
From research on our end, this has been an ongoing problem for a long time. So we have a car that has been parked
since January 23rd, 2024.
This is a huge issue with GM planning and customer service. How many other parts on the Volts will be related to shortages?

I had the same EGR failure with my Volt. Brought it in for service to dealership on Nov 30, 2023. They ordered the EGR valve and I had to pay for it even though it was on back order. I contacted GM customer care right away and got transferred to the GM parts delay department. They had to wait 2 weeks before it could be escalating. The part came in about 36 days after it was ordered and the repair was quick. Repair cost ~$1,250 dollars and GM sent me a check for cost assistance for ~$400. Moral of the story is contact GM customer care as soon as possible so that the issue could be escalated and make sure that the dealership actually put the order in for the backordered part. Also submit report to NHRSA about the propulsion warning due to EGR. If they get enough reports of the problem, they will open investigation which might force a recall and GM covering the cost of everyone’s past and future repairs of this issue.

 

I had EGR fail while on road trip, dealer disconnected it and I drove it that way for like 3 months... It does run HOTTER without the EGR, but most of my driving is battery only.

While I was waiting for dealer part, I found parts on ebay ordered those too, they actually both arrived at same time. I kept the ebay one as a spare.

 

I had EGR fail while on road trip, dealer disconnected it and I drove it that way for like 3 months... It does run HOTTER without the EGR, but most of my driving is battery only.

While I was waiting for dealer part, I found parts on ebay ordered those too, they actually both arrived at same time. I kept the ebay one as a spare.

Thanks for the feedback. Apparently GM is now going to put the EGR valve into production.
We will patiently wait for the part! Customer service put us at the top of the list when it's available.

 

Anyone have insights or a link to instructions on how to simply disconnect or “unplug” the EGR valve? I’ve found several videos on removing and replacing the entire valve, but nothing about how to address this when out on a road trip, etc. Would I just unplug the bit highlighted in the image below, replace the relevant fuse, and then make my way home?

Thanks in advance,
George

 

Has anyone in this forum actually installed one of the Chinese EGR valve replacements available on Ebay? It may be worth installing even if just lasts long enough to pass the emissions test.

EGR valve on my 2017 Volt failed in June 2023, car has worked fine since by just disconnecting the electrical control harness to the valve (as performed by my GM service shop) to avoid blowing the fuse, but of course it will not pass emissions test. GM parts dept. says that a component or material stock used in the original valve is no longer available and it sounds like they are redesigning the valve to circumvent this. They also claim the same issue has affected other GM car models that are still in production, so they might actually have an incentive to come up with a replacement part eventually...

 

Has anyone in this forum actually installed one of the Chinese EGR valve replacements available on Ebay? It may be worth installing even if just lasts long enough to pass the emissions test.

EGR valve on my 2017 Volt failed in June 2023, car has worked fine since by just disconnecting the electrical control harness to the valve (as performed by my GM service shop) to avoid blowing the fuse, but of course it will not pass emissions test. GM parts dept. says that a component or material stock used in the original valve is no longer available and it sounds like they are redesigning the valve to circumvent this. They also claim the same issue has affected other GM car models that are still in production, so they might actually have an incentive to come up with a replacement part eventually...

GM has another incentive to fix this issue - enough cars fail emissions because of it and I can guarantee there'll be a class action lawsuit and/or recall.

 

From GM Corporate: I checked this morning and production has already started and there is partial shipment in transit but I do not know if it will be enough to fill your order yet until I get the next update.

 

I have a similar problem that occurred last month. did anyone ever receive a replacement EGR valve?

 

Dealer received my replacement ECR valve last week and the dealer installed it.

 

Did you ever get the EGR valve from Chevy?

 

 

Check out the related threads at the bottom of the page.

 

I have 50,000 miles on my 2018 Volt. I was quoted a price of $3900 for the repair, $3200 of which is the EGR replacement part. The dealer told me they have a customer that has been waiting close to a year for the part on back order from GM. I am selling my Volt and guaranteed that I will never buy another GM car!

 

I just had my second 2017 Volt EGR failure. First car totaled in accident. That one was replaced under warranty within the first two years I had it. This one I bought with 54K miles on it a couple months ago and was hoping that had already been taken care of, but alas, no. Now, with no parts available, I followed the "remove and clean" course of action and am happy to say it worked. One poster (from Texas) cleaned his by soaking it in Purple Power and using carb cleaner. I decided to use a small ultrasonic cleaner ($50 on amazon) and Northwest Enterprises Gun Parts Cleaner. Went to Ocean Shores, WA from Tacoma and back, 101 miles each way, watching coolant temp the whole way. Ran perfectly normal.
Hope it will stay that way until GM can supply us with new, upgraded valves.
BTW, I checked with the local Chevy dealer's parts dept. and he said they are on "National Control", meaning they won't ship them to dealers just to fill stock. There has to be a specific reason to ship one. I assume that means a car with an open repair order.

 

Had my EGR valve replaced last week by Martin Chevy in Torrance California on my 2017 Volt.

I instructed the dealership to place an order for the valve as per the GM representative that I contacted.
... I then had weekly calls for a GM representative on valve status.
... Roughly 4 months from the time the part was ordered and then the repair completed.

Chevy located several batches of valves and I was fortunate to receive one and the repair was performed under warranty along with correcting the "Shift to Park" issue.

 

EGR issue with my vehicle, no status on when the part will arrive. Won't be buying another vehicle from GM.

 

I have had the same EGR with my 2017 chevy volt since July 2024. The car hardly be driven. Can we sue GM for failing to provide parts? What can we do as consumers?

 

have had the same EGR with my 2017 chevy volt since July 2024. The car hardly be driven. Can we sue GM for failing to provide parts? What can we do as consumers?

Unplug EGR. Replace fuse F3. Drive car as normal with the check engine light on until your EGR arrives.

 

I picked my car up from the dealer yesterday after they diagnosed it being a failed EGR valve. They told me I could drive it normally charged or on ICE until the part comes in, whenever that will be. My F3 fuse never blew and I noticed they didn't unplug the EGR valve connector. Should I unplug it anyway while I am driving it around?

 

Should I unplug it anyway while I am driving it around?

Absolutely yes. It will eventually blow that F3 fuse, and that fuse protects more than the EGR. Driving with that blown can damage engine components (and there is documented events of that here on the forum).

 

I waited almost 2 years, from 10/2022 to 9/2024! I saw somewhere that someone emailed GM's CEO Mary Barra at mary.barra@gm.com. I tried it on 9/17/2024 and within 2 days I got a call from a resolution expert for the Southeast. Withing a week she had located the part and it was waiting at my dealership. They also have me 50,000 GM reward points for my trouble. When I emailed mary I forwarded the 2 year old chain with the weekly updates telling me they still had no part available. Good luck!

 

I waited almost 2 years, from 10/2022 to 9/2024! I saw somewhere that someone emailed GM's CEO Mary Barra at mary.barra@gm.com. I tried it on 9/17/2024 and within 2 days I got a call from a resolution expert for the Southeast. Withing a week she had located the part and it was waiting at my dealership. They also have me 50,000 GM reward points for my trouble. When I emailed mary I forwarded the 2 year old chain with the weekly updates telling me they still had no part available. Good luck!

 

Just a public service announcement, ETA as of 6/2025 is 8-12 weeks for a new EGR. My 2017 Volt EGR died in early April. It was towed to a dealer 50 miles from my house and I just got it back on 6/5/25. The dealer was unable to give me an ETA throughout the entire 9 weeks they had my car. It was repaired under warranty but it was still the worst car experience of my life.

 

What is the correct part number for the EGR, as I've seen many. I'm shocked to see $1,500 "remanufactured" units on eBay and dealer websites. What should it cost normally?

I just got a P0401. I will try the cleaning method first. Berryman's B12 is great for removing carbon. Is it a bad idea to pour some down the hose to the EGR Cooler?