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P0711ModerateTransmission

P0711: How to Diagnose & Fix — Transmission Fluid Temperature Sensor Circuit Range/Performance

5 vehicles · 4 makes · $150-$5,500 repair

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How to diagnose and fix P0711: most-reported vehicles

Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.

Ford Transit Connect · 2019–2023

Community reported
780 owners
Link to this issueError Codes:P0700P0711P0741P0771P2704P0868

The 2019-2023 Ford Transit Connect equipped with the 8F35 8-speed automatic transmission experiences transmission shuddering, harsh engagements, slipping, and premature failure. Ford issued a Technical Service Bulletin for 2019-2021 Transit Connect vehicles built before December 20, 2021 with the 8F35 transmission addressing slipping and harsh engagement concerns. FordTransitUSAForum.com documents a 2019 Transit Connect XL 8F35 transmission failure at the 75,000 mile mark. Eng-Tips.com engineering forums discuss the inherent shudder issue in the 8F35 torque converter clutch. Earlier Transit Connect models with the 6F35 transmission also had recall campaigns (2013-2021 models). The transmission issues are exacerbated by commercial use patterns - frequent stops, loaded cargo, and city driving accelerate wear on the torque converter clutch and internal clutch packs.

Common Symptoms

  • Shuddering during light acceleration at 25-45 mph
  • Harsh or jerky gear shifts
  • Delayed engagement from Park to Drive
  • Transmission slipping under load
  • Check engine light with transmission codes
  • Transmission warning message on dashboard
  • Grinding or whining noise from transmission
  • Vehicle hesitates or surges at low speed

How to Fix

First step: check for TSB coverage and have the dealer perform a transmission fluid change with genuine Motorcraft Mercon ULV fluid and a TCM software recalibration. For 2019-2021 Transit Connect built before 12/20/2021, Ford TSB addresses 8F35 slipping. If shudder persists after fluid change and reprogram, the torque converter may need replacement ($800-1,500). Complete transmission replacement for internal failure runs $3,000-4,500. The powertrain warranty (5yr/60k miles) should cover this on newer vehicles.

Typical repair cost:$200 - $4,500
Sources for this issue (1)
  • Ford TSB 23-2333 - Transit Connect 8F35 Slipping and Harsh Engagementtsb

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Based on 780 owner reports

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Community Reported
Medium Confidence780 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

GMC Yukon XL · 2007–2016

Community reported
220 owners
Link to this issueError Codes:P0711P0741P0894

GMT900 and early K2XX Yukon XL models with 6L80/6L90 transmissions commonly develop leaks at the transmission cooler line crimps or quick-connect fittings. Owners report red fluid spots, low transmission fluid, and in severe cases slipping or overheating if fluid loss is significant. This issue is widely documented in owner reports and GM service bulletins addressing cooler line seepage/connection concerns on full-size trucks/SUVs using these transmissions.

Common Symptoms

  • Red transmission fluid spots under front of vehicle
  • Burnt ATF smell after driving
  • Transmission slipping or delayed engagement
  • Transmission over-temp message (if severe)

How to Fix

Replace the leaking transmission cooler line(s) or fitting seals; many repairs involve replacing the entire line assembly rather than re-crimping. After repair, verify fluid level with the correct ATF (Dexron VI for 6L80/6L90) and check for overheating-related damage.

Typical repair cost:$250 - $900
Sources for this issue (1)
  • NHTSA Campaign 00V345 - Front Brake-Pipe Clearance Recallrecall

Research This Issue

Based on 220 owner reports

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Community Reported
Medium Confidence220 owner reportsReviewed Apr 2026

Ford F-150 · 2017–2023

Link to this issueError Codes:P0711P0715P0729P0731P0732P0733

The 10R80 10-speed automatic (introduced on the 2017 F-150) is widely reported to shift harshly: jerking, clunking, banging on the 1-2 and 2-3 shifts, hesitation, gear hunting, and occasional limp-mode with a 'Transmission Not in Park' or 'drive mode not available' message. Many trucks also exhibit a torque-converter lockup-clutch shudder felt as a vibration around 30-45 mph. Root causes traced in later TSBs include adaptive-calibration mismatch during break-in, CDF drum bushing migration, and valve-body bore wear/scoring. A class action (O'Connor v. Ford, N.D. Illinois) covers the defect.

Common Symptoms

  • Harsh 1-2/2-3 upshifts that jerk or clunk
  • Loud bang/clunk when starting the truck
  • Hesitation, gear hunting, or slipping
  • Vibration/shudder at 30-45 mph (torque-converter lockup)
  • Limp mode or 'drive mode not available' message

How to Fix

Start with a Ford PCM/TCM reflash to the latest calibration and an adaptive-learning relearn drive cycle (early TSBs 18-2079/18-2274, later 23-2250 superseded by 24-2046). For shudder, a transmission fluid service with Mercon ULV plus friction modifier helps. Persistent harsh shifts with valve-body bore damage require main control valve body replacement (TSB 22-2428). Severe cases need converter or transmission overhaul.

Typical repair cost:$150 - $4,500
Sources for this issue (1)
  • Ford TSB 23-2250 - 10R80 Harsh or Delayed Shifttsb

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026

Cadillac CT6 · 2016–2018

Link to this issueError Codes:P0700P0711

Powertrain complaints are the single largest NHTSA complaint category for the 2017 CT6. Owners of 2016-2018 cars report harsh or banging engagement between first and second gear, unpredictable shift quality, a long delay when moving from neutral or park into reverse, and occasional lurching or hesitation on tip-in. Some cars set transmission-controller codes. Unlike the TCC shudder, this is a shift-quality and control fault rather than a fluid-friction issue, and it has driven a meaningful share of CT6 lemon-law claims. On PHEV cars the same symptom set has a separate documented electrical root cause (see the transmission wiring-harness thermistor issue).

Common Symptoms

  • Harsh or banging 1-2 upshift
  • Delay engaging reverse from neutral or park
  • Lurching, bucking or kicking on light throttle
  • Delayed downshifts
  • Transmission warning message

How to Fix

Scan the transmission and check the calibration first. Apply the TCM update and complete the specified adaptive procedure before condemning hard parts. Use the named Dexron HP fluid only for the service branch; valve-body or clutch parts require a confirmed unit and failure mode.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Mobil 1 Synthetic LV ATF HP, part 124715, one quart
    $14

    Dexron HP fluid named by the repair for the CT6 eight-speed service branch. Quantity depends on the exact service procedure; this does not substitute for a TCM update, valve-body diagnosis or machine exchange.

    AutoZone

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$300 - $5,500
Sources for this issue (2)
  • CT6 transmission issues — Cadillac Owners Forumforum
  • P0700/P0711 codes — Cadillac Owners Forumforum

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GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026

Chevrolet Silverado 1500 · 2015–2022

Link to this issueError Codes:P0218P0711P0712

Silverado 1500 trucks with the 8L90 eight-speed (and the older 6L80 six-speed) can run dangerously hot when the factory transmission thermal bypass valve sticks closed, so fluid never reaches the cooler — common under towing or heavy load. Sustained temperatures above ~220-250°F oxidize the fluid and cook the clutches and torque converter, accelerating the separately-known shudder/wear and shortening transmission life. Compounding this, the transmission cooler lines and fittings are a frequent leak point on these trucks, dropping fluid level and worsening heat. Owners towing in hot climates are most affected.

Common Symptoms

  • High transmission temperature, especially while towing
  • Burnt-smelling or dark transmission fluid
  • Harsh/erratic shifts as fluid degrades
  • Red transmission fluid leak / low fluid level
  • Transmission goes into limp/reduced-power mode when hot

How to Fix

Verify transmission temperature behavior and inspect the cooler lines/fittings for leaks. Replace or delete/upgrade the failed thermal bypass valve so fluid reaches the cooler, repair leaking cooler lines/fittings, and service with fresh Dexron-VI fluid. Adding or upgrading an external transmission cooler is a common preventive measure for trucks that tow. Confirm fluid level and condition, as low/oxidized fluid both causes and results from overheating.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Transmission fluid cooler thermal bypass valve (OEM) - 2015-2018 8L90 8-speed, 3/8" lines
    OEM13561467Cross-refPPE 125071000 (billet aluminum, full-flow upgrade w/ magneti, ACDelco 13561467$90–$160

    Fits 2015-2018 Silverado 1500 5.3L and 6.2L trucks with the 8L90 8-speed and 3/8" cooler lines.

    GMPartsGiant

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$150 - $1,200
Sources for this issue (1)
  • NHTSA Manufacturer Communications Data Corpusnhtsa

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026

Find P0711 by make

Browse every documented model and issue for your make.

Cadillac · 1 issueChevrolet · 1 issueFord · 2 issuesGMC · 1 issue

P0711 code reference

General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.

Frequently asked questions

What does P0711 mean?

P0711 stands for "Transmission Fluid Temperature Sensor Circuit Range/Performance." P0711 means the transmission fluid temperature (TFT) sensor's signal is outside its expected range or not changing as the computer expects (range/performance). This sensor monitors how hot the transmission fluid is so the computer can adjust shift timing, torque converter lockup, and protect the transmission from overheating. A range/performance fault usually means the sensor is reading an implausible or 'stuck' value rather than being completely open or shorted. It can cause harsh or delayed shifts, no torque converter lockup, or the transmission defaulting to a protective mode.

What are the most common causes of P0711?

The most common causes of P0711 are: Faulty transmission fluid temperature sensor, Low, old, or contaminated transmission fluid, Wiring or connector problems in the sensor circuit, Internal transmission overheating or restriction, Sensor reading stuck or drifting out of range, Poor ground or reference voltage to the sensor, Faulty transmission control module (TCM/PCM). The specific cause varies by vehicle.

How much does it cost to fix P0711?

Repair costs for P0711 range from $150 to $5,500, depending on the vehicle and root cause.

Which vehicles are affected by P0711?

Au7o has documented P0711 across 5 vehicle models from 4 manufacturers: Cadillac, Chevrolet, Ford, GMC.

Related codes

  • P0710 · Transmission Fluid Temperature Sensor Circuit Malfunction
  • P0712 · Transmission Fluid Temperature Sensor Circuit Low Input
  • P0713 · Transmission Fluid Temperature Sensor A Circuit High Input
  • P0715 · Input/Turbine Speed Sensor Circuit Malfunction
  • 17125 · Torque Converter Clutch Circuit: Performance or Stuck Off
  • P0218 · Transmission Over Temperature Condition
  • P0500 · Vehicle Speed Sensor Malfunction
  • P0700 · Transmission Control System Malfunction
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.

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