2023 Four Cylinder engine failure
#16
8th Gear
Thread Starter
Conclusion: Porsche of Nashville and my friends have come to an agreement that this has gone on way too long, that the thrill is gone and any feelings for this vehicle, which is still undergoing repair, are finished. Porsche has chosen to refund full purchase price and apply it to a new vehicle that really is much nicer. Larger wheels, suede leather, marble white, and several other upgrades. They drove the new one home today and seem to be extremely happy with the outcome. They have nothing but good things to say about Porsche of Nashville.
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#18
8th Gear
Thread Starter
Actually, I found out just yesterday the root cause of the failure. The dealer contacted them, which surprised me since they’ve already gotten into another one. Dealer said new engine was installed. One of the service guys was given the car to drive around. Within the first day, same thing happened. Warning lights were on dash for reduced power, etc. They brought it back in Tuesday. It turns out it was a solenoid that controls upper engine oil pressure. Nothing wrong with the engine. Never was. They said if they’d been given the car back, the same thing would’ve happened again. They’re waiting on part to repair it and I guess it goes back on the lot when it is finished. I’m puzzled that with all that diagnostic equipment, they didn’t find it sooner.
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#19
This does not make total sense....the first engine was opened up, the dealer claimed they took the head off and found that the "piston walls were scored". (more likely cylinder walls)
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?
And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?
And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
Last edited by VAGfan; 03-23-2023 at 12:55 PM.
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boyce89976 (11-15-2023)
#20
RL Community Team
Rennlist Member
Rennlist Member
This does not make total sense....the first engine was opened up, the dealer claimed they took the head off and found that the "piston walls were scored". (more likely cylinder walls)
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?
And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?
And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
#21
8th Gear
Thread Starter
This does not make total sense....the first engine was opened up, the dealer claimed they took the head off and found that the "piston walls were scored". (more likely cylinder walls)
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?
And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?
And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
Last edited by cmitch; 03-23-2023 at 02:59 PM.
#22
“Did you drive this car, like really hard, since the problem seemed to occur on acceleration? That’s when the problem seems to occur is when you get on it.”
1,000 miles into a breakeven period. And did anyone go with the dealer's employee to watch him drive it really hard?
Fortunate outcome. Good dealer, I bought my 3.2 there.
1,000 miles into a breakeven period. And did anyone go with the dealer's employee to watch him drive it really hard?
Fortunate outcome. Good dealer, I bought my 3.2 there.
Last edited by threeOh; 03-23-2023 at 07:14 PM.
#23
2023 Four Cylinder Engine Failure
Good friends of ours just purchased a 23 Macan 6 weeks ago. It just turned over 1000 miles. They visited North Georgia this past weekend and on the way there, the car began to slow and a low power warning came up on dash and car slowed on its own to about 40 mph. She called dealer in Nashville and they told her to clean a sensor on front of the car which she did. Cranked it back up and all was well for about twenty minutes. Then it happened again. This was outside of Blairsville, GA so she decided to take it to the Atlanta dealer. The warning went away after each restart. She limped it in, they checked it out and could find nothing wrong and basically shooed her away. It did it once more when they got to Cleveland, GA. They stayed the weekend at a friends in Sautée and didn’t drive the car until they left on way back to Nashville this past Monday. It gave them the low power warning several times but managed to get it to Nashville dealer. This is where things go south. They diagnose it as a bad sensor and replaced it, told them car was ready to go and they handed them the fob. That’s when her father spoke up. “Did you drive this car, like really hard, since the problem seemed to occur on acceleration? That’s when the problem seems to occur is when you get on it.” They said no but they would so they left with it. They were waiting a really long while in waiting area and service manager came in with an unpleasant look on his face. “Well, what did you find out?” my buddy asked.
”It’s not good. Not good at all. Your car is broke down further down the road and we are getting it towed back. We were driving it back and we noticed engine getting louder and then it quit. Complete engine failure. Locked up.”
So they waited until it was towed back in and got a loaner Cheyenne to drive. They called them later that evening. They took the head off and piston walls are scored. Engine is destroyed. The warranty estimate is $35,000 for engine and labor. That’s half what they paid for it. They said they were ordering a new engine and it was supposed to be in Wednesday. Apparently, today, per my conversation with my friend, he said they have put a hold on repairing his daughter’s car from the big wigs at corporate. Apparently Porsche isn’t too keen on repairing this car. Something along the lines they may want the whole car back and just put her in a new one. Don’t know yet what that decision will be but will keep everyone posted.
”It’s not good. Not good at all. Your car is broke down further down the road and we are getting it towed back. We were driving it back and we noticed engine getting louder and then it quit. Complete engine failure. Locked up.”
So they waited until it was towed back in and got a loaner Cheyenne to drive. They called them later that evening. They took the head off and piston walls are scored. Engine is destroyed. The warranty estimate is $35,000 for engine and labor. That’s half what they paid for it. They said they were ordering a new engine and it was supposed to be in Wednesday. Apparently, today, per my conversation with my friend, he said they have put a hold on repairing his daughter’s car from the big wigs at corporate. Apparently Porsche isn’t too keen on repairing this car. Something along the lines they may want the whole car back and just put her in a new one. Don’t know yet what that decision will be but will keep everyone posted.
#24
Rennlist Member
Sorry to hear, thank goodness for warranties. I hope the resolution is as quick as possible. Please update the thread on the diagnosis if the dealer provides one.
#25
Have you heard from your dealer, what happened? Happened exact thing to me today @2600 miles, '23 Base Macan. Will contact my dealer tomorrow to check car.
Last edited by jimgav; 11-13-2023 at 11:52 PM.
#26
Just FYI, my 2018 Audi Q5 with the same engine went into limp mode occasionally starting at about 60K miles, but was fixed by a re-start. Eventually it would not correct after re-start. Dealership diagnosed it as bad injector on cylinder 3 and replaced all injectors at around 62K - $2,500. The day after I got the car back, same thing happened. After further diagnostics, the problem was identified as a cracked intake valve spring on cylinder 3, discovered when a tech scoped the engine. Dealership replaced the single spring and associated components and returned car; no additional charges. Car ran fine until I traded it for my 2020 Macan base a few months ago at around 75K miles.
I had lots of replies at the Audi forum when I related this problem, mainly about how it could not have been a valve spring because they don't fail that way, etc. The whole point of this reply is that it was a very quirky and isolated instance, and it apparently took some initiative on the tech's part to find the issue. I found it interesting overall and praise the dealership for eventually doing the right thing.
Cheers.
I had lots of replies at the Audi forum when I related this problem, mainly about how it could not have been a valve spring because they don't fail that way, etc. The whole point of this reply is that it was a very quirky and isolated instance, and it apparently took some initiative on the tech's part to find the issue. I found it interesting overall and praise the dealership for eventually doing the right thing.
Cheers.
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jimgav (11-14-2023)
#27
I do not understand what solenoid could possibly cause a lubrication problem.
Why would there be a solenoid that can shut off oil flow to any lubricated parts?? This doesn’t make any sense.
Why would there be a solenoid that can shut off oil flow to any lubricated parts?? This doesn’t make any sense.
#28
RL Community Team
Rennlist Member
Rennlist Member
More modern Porsches (starting around 2009) have a variable oil pump vs a crank driven one. Must have something to do with the technology in this assembly that can allow for this type of failure. Not sure the advantage that moved to this kind of system (maybe less parasitic drag on the engine for better fuel economy) but at the expense of potential catastrophic failure seems short-sighted. There are certainly many things that have gotten worse based on manufacturer fleet efficiency standards going up and up and up - plastic coolant pipes instead of metal one that come unglued and become heat cycled and brittle vs the old metal one, etc.
#30
Rennlist Member
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