2015 V6 Engine Blown @ 13k

Hello guys,

I am new to this forum and here is my situation and "advice"

I have bought a 201 mustang v6 the very base model Ruby Red for 20k + taxes + Delivery etc which totaled around 22k for the whole car out of the dealer in VA.

I have not seen the car at the time, next day I went in to pick it up. they also offered 5500 for my Mazda 3 which I got appraised for 2400 at carmax.

The whole deal ended up being very very good. I went to pick the car and it had 240 miles on it. It took them 2 hours to convince me to go through with the sale including another 300$ off.

So I get my car and break the engine in etc, but it has been acting strange.

At lights it would want to stall out. Idle would go below 600, and car would give itself gas to stay on. I honestly didn't think too much into it as it didnt seem to be a problem.

First oil change, only 2 quarts came out from the engine. The freaking Factory oil filter had a leak on it. It was not tightened all the way from factory.

I changed it with Royal Purple and a K&N Filter. Not too much longer from this time.

I bought a Roush exhaust and intake around 9k Miles.

Then I found the hose from engine to the coolant has been leaking, on both sides of the hose??

Around this time a screeching noise from the intake manifold also developed.

I went into ford to drop the car off for all the warranty issues and of course they did not have a car and the drop off was scheduled to a Monday from friday.

Well on Sunday, I was doing light sunday driving and when I was going under a bridge, I heard clicking from the sound that was echoed from the car.

This is my worst nightmare... I knew something was up. By the time I got home, less than 3 miles, the noise was audible inside the cabin as well.

I took it to FORD on monday, babying it. The car would only knock /Click above 3k RPM.

I work at the dealership so I was around the mechanics and they determined the knock was under the engine on Cylinder #5.

The mechanics said my warranty is voided because of the Intake. I have 2 mods, roush intake and CAI.

They were DETERMINED that the engine was f****ed and I am not covered since I put a CAI.

Well I made it to the Service Manager's office before the main mechanic and the service writer and I old him what I had on the car and that I babied this car.

The mechanic said it should not be covered because of performance mods. He really wanted to not help me for some reason... when they all drive transformer of cars like a CAI can cause a brand new engine to fail.

Well now the car is getting a brand new short block, it is funny because they do not know how long it will take to get the engine since it is such new production. ( I thought they were using the V6 for years in the mustang, maybe I am missing something?)

But at least I am happy I do not have to spend thousands to get a new engine.

My "advice" to anyone is that while the car is under warranty, do not put mods. Honestly only mod I would have put would be the CAI and take that out when going to Dealership and put it back to stock.

The extra noise or the 2-3 added hp is just not worth it.

Ford is ready to give these cars away like candy, but the will find any reason to void warranty as this should not be a surprise to anyone here.

My other advice is that, change your oil at 1000-2000 miles. I did not do this. I read a lot about changing oild at close intervals to get the thrash out of the engine. I let the first oil run until 6-7k miles before changing it.

Honestly, other than the oil change maybe I would have caught that oil filter being loose earlier and Ford oil and filter is sh*t anyway.

I think the v6 s are cheap enough that they do not put much attention to them, with the panels being all weird etc.

I would recommend keeping good care of it and not modifying until you know the engine is good.

This is my experience with this brand and car so far. I wanted to share it because one day you might be looking for your next mod, one day you are looking how to finance $6000 in repairs.

I never, ever pushed my car when it was cold. when this happened the car had normal oil level. I always watched my oil pressure and temperature.

What I noticed however a week prior to this problem was hesitation in acceleration, and the fuel/air ratio being off. If you see your engine having weird, unstable air fuel ratio, I would take it to FORD right away, even if they cant find anything it will be logged if there is a problem.

That being said, I love my car, the looks, the way it drives, the way it sits on the road. We also own a x5 twin turbo diesel v6. I rather drive my mustang.

My plan is to get the GT once the car comes back to me, I will take the mods off and sell it.

Thank you for reading, and good luck on your car being reliable for ya!

get a lawyer to dispute the warranty voiding? Ford has to prove that CAI caused an oil filter leak. The warranty is with Ford not the dealership.

I don't think a CAI can void warranty. Why would a CAI cause a knock that's just unreasonable. Ialso don't think the mechanic has any reason to deny any warranty. They all need to send to Ford for approval of warranty. Don't get scared off by the dealer, they want to make you pay out of pocket. Definitely contact Ford.
But I have to say you should've checked the oil level much more frequently. Maybe there was a leak but there is no way it's leaking that much oil to have only 2 quarts left without noticing.

I do agree with you. I had to check the oil more frequent. I did not suspect that oil was going to be a problem with a brand new car.

Ford did send approval for the engine change. I do work at the dealer and had to kind of 1 on 1 with the service manager so they overlooked the exhaust and intake.

Mechanic however said:

"Since you installed performance parts, which alter the way engine works it will void warranty. The car is designed by Ford to work a certain way, and any alteration to the way engine works will void warranty."

I am just dumbfounded about the reasons they can come up with if they want.

Metaflame said:

I do agree with you. I had to check the oil more frequent. I did not suspect that oil was going to be a problem with a brand new car.

Ford did send approval for the engine change. I do work at the dealer and had to kind of 1 on 1 with the service manager so they overlooked the exhaust and intake.

Mechanic however said:

"Since you installed performance parts, which alter the way engine works it will void warranty. The car is designed by Ford to work a certain way, and any alteration to the way engine works will void warranty."

I am just dumbfounded about the reasons they can come up with if they want.

Click to expand...

That's BS. That's like saying because you are not using recommended oil or driving in dirtier air or not using OEM tires. Unless you are turbo charging or something, they have no reason to avoid it because of a CAI. That mechanic is an idiot. I am amazed he is even qualified to be a mechanic.
On a side note what CAI did you use? Did you ever get a CEL because of the mixture issue that's probably caused by incorrect intake tube diameter confusing the MAF sensor?

Metaflame said:

I do agree with you. I had to check the oil more frequent. I did not suspect that oil was going to be a problem with a brand new car.

Ford did send approval for the engine change. I do work at the dealer and had to kind of 1 on 1 with the service manager so they overlooked the exhaust and intake.

Mechanic however said:

"Since you installed performance parts, which alter the way engine works it will void warranty. The car is designed by Ford to work a certain way, and any alteration to the way engine works will void warranty."

I am just dumbfounded about the reasons they can come up with if they want.

Click to expand...

Sounds like the mechanic is going way beyond his pay grade talking nonsense. Maybe he stayed at a Holiday Inn Express the night before.

I used a Roush Intake.

This mechanic was a nightmare. After his manager approved the issue, it was almost that he took it as a personal failure.

Maybe he stayed at a Holiday Inn Express the night before.

Put a smile on my face.

I suspect that when I initially installed the Roush axle back, I had somewhat of a leak. The clamps that come suck and they do not include exhaust sealant or advice so. I found black sout near the connection point 1k after I installed it.

I then used sealant and a heavy duty clamp. The sound of the exhaust went from raspy and obnoxiously loud to deep and balanced.

I bought the V6 because I though it would be hella more dependable than the Ecoboost with weak intercoooler and high pressure engine.

Have you guys heard about any v6 s having problems?

And also correct me if I am wrong, the 2015 mustang v6 has the same identical engine as a 2014 v6.

Thank you for reading and your replies.

Take it to another dealer.

Well as I said, they agreed to fix it. They are waiting for a short block to come from Ford. They actually just gave me the car back to drive until the engine comes back in, I was hoping they would be holding on to the car and maybe, just maybe I could use the lemon law to get a GT.

I'm confused....you're paying for the new short block or they are?

ryant601 said:

I'm confused....you're paying for the new short block or they are?

Click to expand...

Ford is paying for the warranty because it was approved by Ford. The mechanic was being stupid telling him the warranty was void due to CAI.

Oh nice - it's good to hear these stories!

This guy also had trouble with his V6:

http://www.mustang6g.com/forums/showthread.php?t=32268

Yes, Ford is paying for the engine.

Initially, mechanic went off on me.

After talking to the service manager, he said we are good for warranty.

BUT I work here and still had to pull strings for these small things to be overlooked.

What I wanted to emphasize is that, if you want to mod your car, I would wait for the warranty to run out. That is my just advice.

I was thinking of doing a whole lot more and now very happy that I did not because even a CAI in the eyes of some of these people is a performance altering after market piece.

Other than my engine failing at 13k i am also shocked to see that you buy a mod-able car just to find out when a problem happens, no one will look after you.

This is just my experience. Thank you again for reading.

Metaflame said:

Yes, Ford is paying for the engine.

Initially, mechanic went off on me.

After talking to the service manager, he said we are good for warranty.

BUT I work here and still had to pull strings for these small things to be overlooked.

What I wanted to emphasize is that, if you want to mod your car, I would wait for the warranty to run out. That is my just advice.

I was thinking of doing a whole lot more and now very happy that I did not because even a CAI in the eyes of some of these people is a performance altering after market piece.

Other than my engine failing at 13k i am also shocked to see that you buy a mod-able car just to find out when a problem happens, no one will look after you.

This is just my experience. Thank you again for reading.

Click to expand...

Only because you work there and they lied to Ford. We all know they will void warranty with CAI tune or no tune