Has anyone had their HPFP replaced with the new pump? I saw that they are starting to be installed in RAM Trucks. I also saw that there was a new fuel filter change requirement and I think I saw something about a new oil change requirement. Anyone with any information?
High Pressure Fuel Pump (HPFP) Z46 recall updates?
pgevanthor
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The filters come in a kit, there are 2 filters and a screen that goes inside the filter housing in the kit.
They just added the filters to the recall in early March, so anyone that had it done previous to that did not get filters.
If anyone had it done after the fist week of March and did not get fuel filters, I would call your dealership and ask why
Thank you Crosshairs. That explains the confusing and contradictory bits. Appreciate your knowledge and connections.
This new screen in the filter housing, is that something that needs to be serviced, cleaned, or replaced in future filter changes?
I found this image that claims to be CSSMZ463AA. That is substantially different from buying a pair of the older filters, though I think I see how the older filters could still fit in this.
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Yeah,that looks right.
You have to take the housing apart to install the screen, so you get new bolts and a new housing gasket.
It's not the same as just replacing the filters.
it's a one time thing just to keep any metal that may be lingering around from making its way up to the new pump.
The top comes off the housing to install the screen, but the filters go in from the bottom as usual.
Got my recall done this week! When I called last week, they said it would take a day - when I dropped it off, they said two days - and on the second day, they asked to keep it a third day - but I pressed them on it a bit and they pulled it back in to two days. Also, on a side note, disappointed to learn my dealer no longer provides a shuttle service or uber/lyft rides, and they cut back their rental car coverage to a $35/day limit when the cheapest Stellantis vehicle via Enterprise was just over $50/day.
Surprising to me (didn't read up on this forum post earlier) and even more disappointing was the envelope they left on the passenger seat when I got my car back. It was an "Owner Information Kit" with notes and warnings and an updated maintenance schedule - from 30k mile fuel filter intervals to 10k mile intervals!! I don't know how they can get away with increasing our maintenance costs like that - I'm surprised they aren't throwing in some free filter changes! It may not be a high dollar value, but the principle of the added costs, along with the inconvenience of the recall, has really soured my opinion of the brand. If anyone wants to start a class action suit, I wouldn't mind getting some free filter changes! Actually, on second thought, I think even free filter changes are not worth the hassle of going to my local dealership.
I haven't really noticed any change in performance, for better or worse, since the recall. FWIW, I usually run Propel or 76 renewable diesel.
Surprising to me (didn't read up on this forum post earlier) and even more disappointing was the envelope they left on the passenger seat when I got my car back. It was an "Owner Information Kit" with notes and warnings and an updated maintenance schedule - from 30k mile fuel filter intervals to 10k mile intervals!! I don't know how they can get away with increasing our maintenance costs like that - I'm surprised they aren't throwing in some free filter changes! It may not be a high dollar value, but the principle of the added costs, along with the inconvenience of the recall, has really soured my opinion of the brand. If anyone wants to start a class action suit, I wouldn't mind getting some free filter changes! Actually, on second thought, I think even free filter changes are not worth the hassle of going to my local dealership.
I haven't really noticed any change in performance, for better or worse, since the recall. FWIW, I usually run Propel or 76 renewable diesel.
Seems like a number of people have had 2-3 day repair visits on this. I dropped mine off at 7AM and got the call it was ready at 2PM which worked perfectly with a coworker giving me rides back and forth. Now I'm almost worried about it being done in a partial day. So far I trust this service department, been going to them for about 4 years now without issues, and their mechanics have a good reputation. The service writers are a bit pushy on the upsells, but that just requires some good boundaries and "no thank you."
You would think they could at least include a couple of mints or even a gift card to a local coffee shop in that envelope and the new fuel filter service intervals. At least their replacement is an easy DIY task.
After driving mine a week now after the recall work, it really does feel like it has a bit more pep, a little less lag, but that really could just be wishful thinking. The Chevron just down the street from home has the renewable diesel, and I've been running that for a while now. Seems to like it. I should check the regen intervals, but haven't. Been a fairly long time since I've had a regen warning to go for a drive at highway speeds. The internet is full of the horror stories, but so far mine has a happy ending.
My experience was exactly the same.
Longer repair visits must be staffing related, since my experience last Fri, 3/22, was similarly quick, 730 to 230. Did not get that 10k mile interval change note, though, so looks like I'll be bugging the service advisor tomorrow.
I agree that the shorted fuel filter interval is a pain and an increased cost - I'm wondering if this is true with other vehicles that are getting a revised CP4 pump?
If you are at all comfortable doing it yourself, it's super easy. I raise the air suspension up and can access them without a jack or a lift. The last time I did mine, the 2 pack of generic O'Reilly's filters (which fit just fine) was $40. I do 3 priming cycles before starting. Also, I just run the drained diesel back into the tank (I've never seen any water come out) so there's no disposal issues.
If you are at all comfortable doing it yourself, it's super easy. I raise the air suspension up and can access them without a jack or a lift. The last time I did mine, the 2 pack of generic O'Reilly's filters (which fit just fine) was $40. I do 3 priming cycles before starting. Also, I just run the drained diesel back into the tank (I've never seen any water come out) so there's no disposal issues.
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The pump and filters on a WK pays 2.2 hours.
Im not sure why they show 8.1 hours on that RO, the parts charged out do not support that time.
it's only 7.8 hours If they replaced everything and they are missing a bunch of parts if they are claiming they did
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Union 76 make sure and pay at the pump with Union 76 app. 30-cent-a-gallon discount on Renewable diesel to the end of the year.
I posted my HPFP experience in the recall process and now some 3 weeks later and a few road trips completed, I can definitely confirm better pick up post replacement and an increase in the mpg. For highway driving this week I was back up to 29.9 on the average display. I keep this display format open all the time as an inner indicator. For perspective this was achieved with selectively ignoring posted limits on known remote rural roads. (safety first but a posted limit does not account for great weather, visibility, lack of traffic, and roads in good to excellent condition. Someday we will see real time speed limits). Before the HPFP issue, I blamed the mileage decline on my willingness to excel. As you know the average accounts for both higher mpg and lower mpg. So I feel good to think I am over 30mpg again on varying terrain although I like to exceed my best at 29.9mph using the average screen, vs actually doing a diesel consumption test. Anyone using the Mudflaps app for find diesel deals?
My Z46 pump replaced last week and same parts replaced as posted above. I notice absolutely no difference in the performance or fuel mileage.
129K miles to date.
Happy to have this done as I prefer to drive it on trips I take of 600 miles or more.
129K miles to date.
Happy to have this done as I prefer to drive it on trips I take of 600 miles or more.
Thought I would update my experence with the Z-46. Dealer seemed to do a good job. Hesitation is gone when cold. That was a nice surprise. I do have a question for Southern Calif Jeep and Ram ecodiesel owners. As you know they gave us an envelope which had the Oil change requirements, Fuel filter new requirements and the type of fuel to use and not use. The question I have, I use R99 renewable diesel. It is not Bio diesel according to the Fuel company websites. My Jeep loves the stuff. I wish they would of talked about R99 renewable also. Supposily its is chemically that same Diesel # 2. I plan to continue to use it. Any southern Cal (Arco, Shell, 76 etc) ecodiesels have anyfeedback on the use of renewable with the new fuel pump?
Phil they just directed me back to the dealer. I will send them an email, maybe somone technical will answer my question.I would contact Stellantis directly with that question and have it in writing
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All the automotive manufacturers approve renewable diesel as fuel without special maintenance requirements. As you know renewable diesel is chemically the same as #2 diesel and meets all the standards for #2 diesel. I'm sure this fuel pump is being used in production vehicals in California with renewable diesel approval.
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