2019 Mustang GT idle thudding/knocking, authorized engine replacement

[Marcelo C]

Thanx for the advice. And I agree. That I should be pushing it a bit more but from all the problems I had. I been paranoid to do so lol! It’s been war with dealer to just get to the point I did. The original engine only had 1,700 miles and had a good amount of damage : metal shavings in oil. 2 cylinders were scored,damage to cams,bearings, and tech said timing chain tensioner had something goin on also. All this after being told 5 times it was all normal!!!!! Sound familiar

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[Marcelo C]

I have a feeling the only cure for this bs is built motor.. What's a good price for budget build?

I’m thinking the same thing !!!
The Tech that worked on my car said these engines def have issues!!!!

 

[mustangflanagan]

Only prob is I haven't seen any built 18 shortblocks on any site.. So it would have to be custom which means $$$$

 

[pro 5.0]

You can't get the rings to seal with that spray in lining so sleeving the block is a must, a sleeved block with good rods and pistons along with the necessary ARP hardware will run 8 - 10 K.

 

[Dfeeds]

Well I opened a case with Ford as per the service manager's recommendation. After getting passed the middle man I got to someone higher up who is going to try and get the long block authorized instead of Ford's claim that a long block is an "over repair." I'm also approaching the 30 days lemon law, so he brought up the suggestion of doing a key for key swap with another Mustang GT of comparable value. Now, on paper, that would be the best option. The only problem is that, considering I got my car with 3 miles on it, I'd also want a replacement just as new. He gave the impression that my options would initially be limited to whatever is on the lot, as opposed to getting something fresh off the line. There is a sister car to mine at the dealership, or was when I last dropped mine off. Same build date and package to my car so it would be the swap Ford would probably try to push for. However, I can't help but feel that this car may develop the same issues mine has.

I'm sitting here with one hell of a headache. A new engine could have the lowest chance of having to go through this all again, but there's no way to be certain of that. A replacement car could have the same issue, or the sister car could have been assembled by the factory worker who ate their wheaties in the morning, as opposed to mine that got the monkey, and could be pristine. At this point, I have no idea what a "healthy" engine sounds like on this car, as I have yet to hear a video of someone with one.

This is the video I took about two months ago of the sister car at idle


That one doesn't sound great to me, either, listening to it again... but it sounds better than mine. I think I may be better off just waiting to see the outcome of my current car with the new engine. If it's dinged up then I guess key for key, if it's in the same condition I left it and purs then I may be better off just sticking to my own. Blah, headache... I really didn't want to do a buyback but at least I'd be out of this gamble and back with my old 97.

 

[pro 5.0]

I would venture to say that any 2019 on the lot has the same issue your engine has which is why the dealer says it's normal. I don't know if there is any truth to it but I heard Ford has stopped shipping Mustangs from the factory until this engine issue has been addressed. I ordered my car Sept 20 and didn't receive my VIN until Nov 14, I was told by the dealer that the ETA is the first week of Dec. For some reason when I punch in my VIN into the tracking system it say invalid, if my car shows up as planned I know the engine issue was not resolved on mine. I hope it shows up in Jan or Feb that way hopefully it indicates there was a fix.

 

[Condor1970]

Well I opened a case with Ford as per the service manager's recommendation. After getting passed the middle man I got to someone higher up who is going to try and get the long block authorized instead of Ford's claim that a long block is an "over repair." I'm also approaching the 30 days lemon law, so he brought up the suggestion of doing a key for key swap with another Mustang GT of comparable value. Now, on paper, that would be the best option. The only problem is that, considering I got my car with 3 miles on it, I'd also want a replacement just as new. He gave the impression that my options would initially be limited to whatever is on the lot, as opposed to getting something fresh off the line. There is a sister car to mine at the dealership, or was when I last dropped mine off. Same build date and package to my car so it would be the swap Ford would probably try to push for. However, I can't help but feel that this car may develop the same issues mine has.

I'm sitting here with one hell of a headache. A new engine could have the lowest chance of having to go through this all again, but there's no way to be certain of that. A replacement car could have the same issue, or the sister car could have been assembled by the factory worker who ate their wheaties in the morning, as opposed to mine that got the monkey, and could be pristine. At this point, I have no idea what a "healthy" engine sounds like on this car, as I have yet to hear a video of someone with one.

That one doesn't sound great to me, either, listening to it again... but it sounds better than mine. I think I may be better off just waiting to see the outcome of my current car with the new engine. If it's dinged up then I guess key for key, if it's in the same condition I left it and purs then I may be better off just sticking to my own. Blah, headache... I really didn't want to do a buyback but at least I'd be out of this gamble and back with my old 97.

My BBQ tick has turned into this constant knock at idle, but the Ceratec quieted it down. I have a feeling I should just put regular 5w20 back in, and let it start making noise, so I can get it properly diagnosed and fixed by the dealer.

Honestly, to fix it, I think they need to do 2 things.

1. Design a piston with a longer skirt for better balance.

2. Make the belt tensioner standard for the A/C compressor.

 

[D6tse]

Ford should make the 5.0 engines in England not Canada.

Mine is UK and makes this noise.

 

[Dfeeds]

Mine is UK and makes this noise.

I think the engines are still assembled in canada.

 

[pro 5.0]

It would appear that engines have problems regardless of where they were assembled.

 

[D6tse]

It would appear that engines have problems regardless of where they were assembled.

Just wish we knew What the hell that rattle was! Harmless or not???

 

[Dfeeds]

It would appear that engines have problems regardless of where they were assembled.

It's still Ford's factories, their funding, resources, etc. It's not like the whole 6.0 diesel thing where the engines were assembled by Navistar.

 

[pro 5.0]

This is the problem people that don't own a 2018 or up are kissing Ford's ass and saying there isn't a problem just drive it. Yet the reality is that people that actually own the cars are having issues with noises, cylinder scoring and metal in the filter. I don't think there is a single person that has had the engine replaced have success with eliminating any noises or piston slap issues. You can try every different oil you want it's not going to fix the problem and that's a fact, the bore in the block is not true and the piston to wall clearance is too loose period. Another point that no one has mentioned from what I've seen is the 2018 and up blocks have not only gone away with the steel liner but the area around the coolant passages has been opened up to allow for better cooling. Yes I know they put a brace in the block at the 12 o'clock position but that doesn't do shit when there isn't enough support in the material surrounding the bore. The gen 2 blocks with the sleeve had a much more stable and true bore for the piston to run in hence you never hear about cylinder scoring in those blocks. I have a 2019 on order and I'm sure that engine is shit as well, if I have to I will simply build a forged bottom end with sleeves and be done with this whole ticking, scoring, oil bullshit. I don't even have the car yet and I'm not the least bit excited due to these engine issues. And people stop saying it normal just send it as you have warranty that's bullshit, walk a mile in the people's shoes that are going through this process of getting parts and engines replaced. Ford needs to put a sleeve back into the gen 3 and forget about being a true 5.0, I'd rather have an engine that's trouble free than to be able to say it's a 5.0.

 

[Dfeeds]

I think the new liner isn't a bad idea, if it were to work properly. Nissan may show us what it's really capable of. But I do agree about the people saying it's no big deal. The people who go around and say "we don't even know if there's a problem, people are just freaking out over nothing," when there's clearly been replacements, are just in denial and don't want to admit to themselves that they may have to eventually deal with this, too. There is a whole thread going on, right now, in the s550 section where people are sharing their experience with a noiseless engine. Then again, I also have yet to see any videos posted in that thread.

 

[pro 5.0]

It's human nature to say there is nothing wrong, face it people you are just trying to convince yourself of that. There is a problem whether it shows up today or 1000 miles down the road the gen 3 5.0l had a clearance issue. Ford is not going to admit they have an issue or a fix as everybody and their dog is going to demand a new engine. What if Ford has a gen 3 block and has installed the steel liners in it, now you bring your car in for the engine scoring issue. The dealer says you will get a new engine so they put in that sleeved block which you have no idea it even exists. Now you get the car back and the problem is solved until you physically tear that engine down you would never know what the fix was, nor would Ford tell anyone.

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