P2757 Ford Ranger Torque Converter.

P2757 Ford Ranger Torque Converter Stuck in Lock-Up? Here’s What’s Really Failing

How P2757 Ford Ranger Torque Converter show up uninvited? You’re towing up the range with your PX Ranger (or let’s say Toowomba). Maybe it’s a work trailer. Maybe a caravan (nice huh), maybe even a load of tools in the tray. All seems fine — until you hit highway speed. The revs climb. You feel a subtle surge. The next day? It does it again. Then one morning, limp mode kicks in and a fault code shows up: P2757 – Torque Converter Clutch Pressure Control Solenoid Stuck On.

If you’re like most, you Google it, after all, the 21st century. Forums are all over the place-“white noise”. One says solenoid, one says transmission rebuild, another says ignore it. You call a few mechanical workshops and some even quote a second-hand automatic transmission on the spot (professionals, huh).

Yet here’s the truth: P2757 isn’t a solenoid fault. It’s the torque converter clutch slipping under pressure — and your Ford Ranger is telling you it’s starting to fail.

At Brisbane Tuning & Turbo, we’ve built a scan + dyno process that finds these failures early — and fixes them properly, before your transmission becomes scrap.

What Does P2757 Ford Ranger Torque Converter code Mean?

Let’s break P2757 Ford Ranger Torque Converter code down.

P2757 means the “Transmission Control Module” (TCM) has seen the “Torque Converter Clutch” (TCC) fail to hold lock-up. In this case, it tried to apply pressure to the converter clutch through the solenoid, but it stayed “on” too long — the pressure didn’t result in proper lock-up, and the clutch was slipping.

The solenoid is working. The TCM is commanding lock-up. But the clutch can’t hold. So the system logs P2757: “Stuck On” — not because the solenoid is physically jammed, but because the lock-up event failed to disengage or apply cleanly.

Most PX and PX2 Rangers throwing this code are running the 6R80 transmission, and most have either done serious towing or seen extended highway use in hilly terrain. It’s not a fluke. It’s wear.

What You’ll Notice (Before the Code)

P2757 rarely shows up alone — and it doesn’t always trigger a check engine light at first. What we usually hear from Ranger owners is:

“It shudders a little around 90 km/h.”

 “I notice revs fluctuating when I’m cruising on the highway.”

“Sometimes it feels like it drops out of gear, then comes back.”

“After towing, the trans gets hot and doesn’t feel the same.”

“Limp mode kicked in while going uphill with the trailer.”

These are all signs of early converter clutch failure. The clutch can’t hold torque under light throttle cruise — so the TCM sees slip, and eventually logs the fault.

If you’ve already seen P0741 (TCC performance) or P0744 (intermittent clutch circuit), this is the next step down the ladder — pressure control failure.

Why It Happens – It’s Not the Solenoid

The solenoid in question is just a valve. It controls fluid pressure into the converter clutch. But if the friction material inside the torque converter is worn down, no amount of pressure will hold lock-up. The converter slips. The TCM sees the mismatch. And you get P2757.

P2757 Ford Ranger Torque Converter fault -What causes it?

Long-term towing without adequate cooling- if you had an additional transmission oil cooler, you would not see this code.

Fluid that’s broken down from overheat cycles- this comes down to servicing the automatic transmission in your Ranger.

Wear on the clutch friction lining inside the converter- this comes from the reasons above.

Sometimes, a valve body bore leak makes it worse, but it’s secondary and should only be taken as one more sign.

Once that lining starts to go, it can’t apply or release cleanly. The system tries to lock, but it just keeps slipping. Eventually, that slip starts to feel like a delay, then a surge, then full limp mode.

Why You Shouldn’t Ignore It

If the torque converter clutch slips long enough, it cooks the fluid. That heat damages the seals, sends debris through the box, and starts wearing on the valve body, too.

We’ve had customers come in after ignoring P2757 for 10,000 km (click here to read about this code) — now dealing with P0730 (gear ratio fault), P0741, and even full gearbox failure. Instead of an approximate $2,800 converter upgrade, they’re looking at a $6,800-8,500 automatic transmission replacement. All because they waited too long.

The other risk? You get quoted a second-hand automatic transmission from a wrecker… with most likely the same worn converter inside. Yet in order for you to discover it, you need to install it on your Ford Ranger first and pay the money. Surely, many second-hand parts come with 3-6 months warranty – are you ready to gamble?

How Brisbane Tuning & Turbo Diagnoses P2757 Properly

This is where Brisbane Tuning & Turbo steps in with a “Redorq TQ+ Scan + Dyno” diagnostic. For $285, you get more than just a code reading.

We test:

TCC slip RPM vs. commanded lock-up.

Clutch apply timing under cruise and load.

Solenoid logic vs. converter behaviour.

Fluid colour and smell (signs of overheat or clutch dust).

Live data capture on our in-house dyno, replicating hill load or towing load.

This lets us prove whether it’s the converter, the solenoid path, or both. It’s not guesswork. It’s controlled and educated testing, and it saves customers thousands of dollars. Most importantly, our “Redorq TQ+ Scan + Dyno” diagnostic process provides certainty. 

What’s the Real Fix for P2757?

If our diagnosis confirms converter clutch failure, we quote a “Redorq TQ+ Upgrade”, which includes:

A remanufactured torque converter with upgraded friction material.

New fluid and filter.

An optional external HD transmission cooler, critical for towing.

Optional ECU remap to reduce stress on lock-up under load.

Post-install dyno verification of converter engagement.

Most jobs come in between $2,800 and $3,700, depending on options.

At Brisbane Tuning & Turbo, we don’t guess. We don’t just throw a solenoid at it. We fix what’s actually failing — and we give you an automatic transmission that locks up cleanly, runs cooler, and lives longer.

Second-hand automatic transmission? Read This First.

Many Ford Ranger owners get quoted a wrecker automatic transmission. Cheaper, right?

Not if:

The converter in that box has the same fault brewing.

It hasn’t been flushed or tested.

The root cause (cooler, tune, valve body leak) isn’t addressed.

You install it and four months later it’s back.

We’ve had customers burned this way. You don’t save $2,800 — you lose $8,000 and time off the road.

Book Your Redorq Scan Now. P2757 isn’t just a code. It’s your last warning before real damage starts.

P2757 Ford Ranger Torque Converter

At Brisbane Tuning & Turbo, we don’t quote until we’ve tested. We only tell you -what we can prove with data.

You’ll get a scan, a fluid check, dyno graphs — and a clear quote to fix what’s wrong. No BS. No “maybe this.” Just results.

Book your $285 Redorq Scan + Dyno today. 

You’ll leave with answers — and the confidence that your transmission isn’t flying blind anymore.