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This is most likely not a big deal. When you're at idle and the AC pump is engaged, it places a load on the engine. Does the RPM drop and not recover? Does the engine "smooth" out after a bit of time? Did they address the TSB?

Curious about the bleeders (brakes look great by the way). I'm assuming it's a one-way valve? Might be somewhat more convenient, but won't you need to add some hose lengths so your brake fluid doesn't go everywhere?

All tunes are not equal, and there are tunes that allow for towing. It comes down to load and time. A tune that would net the best absolute times in a 1/4 mile time might encounter some problems with a higher load while towing a trailer up a long hill. The ST has very sophisticated anti-knock...

The very fact that Ford has supplied a feature to allow "correction" for computed gas mileage should make one take any numbers with a grain of salt. https://www.explorerst.org/threads/inaccurate-mpg-adjustment.4387/post-57390

So, no matter what you pay, come August '27, it expires? If so, forget mileage, you're only getting one more year? If that's the case, (and this is only MY opinion), I wouldn't go for it. Two more questions to think about- what are the deductibles/copays? Also, what if you have a major...

It depends on factors that you don't include: How long are you planning on keeping the vehicle? What is the price of the warranty? What specifically does the warranty cover? How stringent are the maintenance schedules? Most vehicles that have some type of problem are going to experience it...

It's possible that it's only a bit of residual oil/moisture in the exhaust. However, if it happens very quickly after starting and then dissipates, you have to look at the heat source, and the fastest heat source is the turbine. That would tend to point one in the direction of the turbine...

Yep- but don't get your hopes up. It won't take advantage to make big HP gains.

Looks like a (customized) Lexus RX And your ST can take it!

Your first and only post is to bitch about things which you should have discovered when you did your due diligence before purchasing? You never test drove the vehicle or made sure it met your standards? I assume the dealer put a gun to your head to buy it?

@Liver No need to feel dumb, you're new to the site. Occasionally new-joiners get someone to just answer them straight out, but depending on the subject, it's best to try a search to get more opinions. This isn't intended for you, but people who have been on the site for a few years do get a...

It's been covered. Search "rivets", "intercooler".

I would suggest this- think about what your next vehicle(s) might be, then go to the forums. I think you'll find that the Explorer is not the only vehicle that has problems. I haven't had the problems some others have had, (knock on wood), but coming from higher dollar vehicles, I'd have to...

It's clear that you don't know much about what's under the hood. That's called ignorance, you don't know what you don't know. I wasn't picking on you, and I'm sorry you spent money on something that's ineffective. If you wanted to be "educated or pointed in the right direction", I did exactly...

Just to add to this- the 3.0 ecoboost does not measure airflow with a MAF. It is a speed density system. Meaning that it uses temperature and boost pressure to approximate airflow. A piggy-back system changes the sensor output so the engine sees less boost pressure. With the speed-density...

I think those of you who are doing the "JB4" thing, haven't bothered doing any real research, nor reading any posts. There are only two reasons someone would do this on an ST (which has all kinds of tuners at various price points). It's because if you have a problem you want to do away with any...

@UNBROKEN I haven't seen any of those types of comparisons, but you are exposed to more of them than I would see since I'm not on FB. It very well may be that a 93 tune could produce a mid-teens HP increase. Having not changed my downpipes, I calculated this number as the delta between the...

Everyone has their recommendations. I'd recommend ZFG for the tune. It's a bit more pricey, but it's a custom tune and the HP device is superior. As far as intercoolers, I think the Whipple has the highest quality, but the CVF is very similar and is less expensive. Depends on your budget...

If you're not running an e50 tune (and the OP is not), I really don't believe that downpipes are going to net 25HP. Hey, I may be wrong, but I have never seen any evidence that this would be the case. Doesn't mean there is no gain, just that it's not worth the price. For anyone interested...

Intercooler is a no-brainer. Both for reliability, consistency, and (if you're doing it), towing. Stock turbos do not need downpipes or an intake. BOV has never added a single HP to anything, ever. And with stock turbos, the only thing an exhaust will give you is more sound. Short answer...