No recalls found in NHTSA database
Based on the provided data for 2021-2024 Dodge Durango, there are no official recalls or NHTSA owner complaints specific to P0750. This guide uses general automotive knowledge for the diagnosis and is anchored by the reality that there are no documented recalls or complaints in the supplied data. Data limitations mean this guide covers typical scenarios and common failure modes, but it cannot reflect any unlisted or new complaints or recalls.
CODE MEANING AND SEVERITY
What P0750 means
- P0750 is typically described as a Shift Solenoid A Malfunction (or Shift Solenoid A control circuit problem) in automatic transmissions. It indicates the powertrain control module (PCM/TCM) detected a fault in the circuit that controls solenoid A, or the solenoid itself is not operating within specification.
- On a Dodge Durango with an 8-speed automatic transmission, this solenoid resides in the valve body and helps manage hydraulic pressure and gear engagement for certain upshifts and/or downshifts.
How severe is P0750?
- Moderate to potentially high severity. If the solenoid or its circuit is failing, the transmission may not shift correctly, may shift harshly, or may enter a limp/limited-transmission mode. This can reduce drivability, driveline comfort, and fuel economy, and if ignored can lead to further transmission wear or damage.
- It is not typically a “safety” code that disables the vehicle, but continued operation with poor shifting can cause additional transmission stress and possible failure.
COMMON CAUSES ON DODGE DURANGO
- Faulty Shift Solenoid A or its wiring/connector
- Solenoid coil failure, internal short/open, or a poor electrical connection can trigger P0750.
- Wiring harness problems to the solenoid or TCM
- Damaged insulation, corrosion, pin wear, or a loose connector at the valve body/TCM can cause intermittent or constant fault conditions.
- Valve body contamination or wear
- Debris or varnish in the valve body can impede solenoid by-way operation or pressure regulation.
- Transmission fluid issues
- Low fluid level, incorrect ATF type, or fluid that is burnt/oxidized can alter hydraulic conditions and solenoid performance.
- Transmission control module (TCM/PCM) software or calibration
- Outdated or corrupted software can misinterpret or mis-command solenoids.
- Electrical ground/power issues
- A weak ground or power supply to the solenoid circuit can mimic a fault.
- Internal transmission wear
- In some cases, wear within the valve body or related hydraulic passages can produce symptoms that resemble a solenoid fault.
- Poor maintenance history
- Infrequent service, dirty screens/filters, or improper fluid service can contribute to valve body issues.
SYMPTOMS
- Transmission shifts oddly or harshly (especially around the affected gear ranges)
- Erratic or delayed upshifts/downshifts
- Transmission may go into limp mode or fail to shift beyond a certain gear
- Check Engine Light / MIL illuminated with P0750 stored
- Slippage or reluctance to engage gears
- Harsh engagement into drive or reverse
- Decreased fuel economy and possible temperature/overheating concerns
- Possible no-start or limited-drive scenarios if the fault is persistent
Note: The presence of P0750 may occur with other transmission codes, so a full diagnostic run is important.
DIAGNOSTIC STEPS
Important: Begin with the simplest checks and progress to more involved tests. Use a good quality scan tool that can read live transmission data, solenoid duty cycles, and valve body/TCM data.
Step 1: Confirm and contextualize
- Retrieve all stored and pending codes with a scanner. Note any related codes (P0700, P0751-P0754, P0730, P0740, etc.). Clear codes only after you have documented the failure and repaired the issue to confirm the fault reappears.
Step 2: Transmission fluid health
- Check level, condition, and type when the transmission is at operating temperature.
- Look for burnt odor or metallic contamination.
- If the fluid is dark, burnt, or the level is low, correct before deeper solenoid testing. Refill with the manufacturer-recommended fluid (for many Chrysler/Dodge applications this is ATF+4 or equivalent; verify your exact spec in the owner’s manual or service information).
Step 3: Inspect wiring and connectors
- Visually inspect the solenoid A connector and wiring harness at the valve body/TCM for damage, corrosion, or loose pins.
- WIGGLE/bench-check connectors with the ignition on to see if the fault is intermittent.
Step 4: Electrical resistance and circuit checks
- With power off and the connector unplugged, measure the coil resistance of solenoid A (between its two terminals). Compare with the OEM service spec. A resistance well outside spec usually indicates a defective solenoid.
- Check continuity from the solenoid harness to the TCM/PCM, and check for shorts to power or ground. Inspect for damaged insulation or pin corrosion.
- Check grounding points for reliability.
Step 5: Live data and functional test
- Use a scan tool to monitor the solenoid A duty cycle and the commanded gear in real time.
- Command solenoid A on/off (as supported by the tool) and observe whether the transmission responds in expected ways (note: some solenoid tests are limited by the vehicle’s control strategy).
- Observe line pressure and other hydraulic parameters if the tool provides them. Abnormal pressure behavior can indicate valve body or hydraulic issues.
Step 6: Software and calibration
- Check for Bluetooth/USB updates or TCM calibration advisories for the Durango’s model year. A reflash or calibration update can resolve misinterpretation of sensor/solenoid signals.
Step 7: Consider valve body and internal transmission service
- If electrical checks and fluid condition are normal but P0750 persists, a valve body service (including possible replacement of solenoids or the entire valve body assembly) is reasonable.
- Valve body cleaning/pressurized fluid flush and filter replacement is a common step in remediation.
Step 8: Road test and verification
- After service or parts replacement, perform a thorough road test to verify proper shifting through all gears and to ensure the fault does not reappear.
- Clear fault codes and recheck after a short test drive and then again after a longer drive.
Step 9: Escalation
- If P0750 remains after solenoid and valve body service, evaluate the need for a transmission replacement or overhaul, particularly if there are additional internal wear symptoms or multiple related codes.
RELATED CODES
- Immediate related categories to review alongside P0750:
- P0751, P0752, P0753, P0754: Other Shift Solenoid Malfunction or circuit faults (solenoids B, C, D, etc., depending on the transmission variant)
- P0700: Transmission Control System Malfunction (generic umbrella code)
- P0730: Incorrect Gear Ratio (generic symptom when shifting is wrong)
- P0740: Torque Converter Clutch Circuit Malfunction (may co-occur if hydraulic issues are present)
- Note: The exact set of related codes can vary by vehicle year and transmission variant. Use the scan tool to identify all codes present and diagnose them in context.
REPAIR OPTIONS AND COSTS (2025 PRICES)
Prices are estimates and can vary by region, shop, and specific Durango configuration. Labor rates, parts availability, and local regulations will affect final pricing.
Solenoid replacement or valve body service (most common initial fix for P0750)
- Parts: $100–$400 (solenoid assembly or valve body components)
- Labor: $300–$900
- Estimated total: $400–$1,300
Valve body replacement or rebuild (if cleaning and solenoid swaps don’t fix it)
- Parts: $200–$700
- Labor: $500–$1,500
- Estimated total: $700–$2,200
Transmission fluid drain/fill with filter service
- Parts: $30–$60 (fluid and filter)
- Labor: $100–$250
- Estimated total: $130–$310
- Note: A simple service does not fix a failing solenoid but is often recommended during related work.
Full valve body assembly replacement (more extensive repair)
- Parts: $300–$1,000
- Labor: $800–$1,600
- Estimated total: $1,100–$2,600
Transmission replacement or major overhaul (if the transmission is at end of life)
- Parts: $2,500–$5,000 (refurbished) or $4,000–$8,000 (new) depending on availability and core exchange
- Labor: $1,000–$2,500
- Estimated total: $3,500–$10,000
Total cost ranges should be treated as ballpark figures; the actual price will depend on the exact Durango model, transmission type (8HP variants), local labor rates, and whether there are other concurrent issues discovered during service.
DIY VS PROFESSIONAL
DIY considerations
- Basic tasks you can safely perform if you’re comfortable: checking the transmission fluid level and condition, inspecting visible electrical connectors for damage, and possibly performing a controlled fluid change with the correct ATF.
- More complex tasks (solenoid testing, coil resistance checks, valve body service, or a full replacement) typically require specialized tools, transmission service knowledge, and lifting equipment. Valve body work often involves removing the transmission pan and valve body; this is advanced work and may require a calibrated torque sequence and seal replacement to prevent leaks.
Professional considerations
- Pros: Accurate diagnosis including live data, confidence in software reflash/updates, proper valve body/solenoid work, avoidance of misdiagnosis, reliable labor warranty.
- Cons: Higher upfront cost, potential lead times for parts, vehicle downtime.
Safety and advisories
- Transmission work involves safety risks (vehicle supports, fluid handling, potential exposure to hot fluids). If you’re not experienced with transmission components, seeking professional service is prudent.
PREVENTION
Regular maintenance
- Use the manufacturer-recommended transmission fluid (ATF+4 or equivalent) and follow service intervals. Avoid mixing fluids.
- Keep the transmission fluid level correct; address leaks promptly.
- Perform periodic transmission fluid heat checks during long drives or towing.
Drive habits
- Avoid aggressive “hammer-down” driving with heavy loads; allow smooth shifts.
- When towing or carrying heavy payloads, use proper towing guidelines and ensure cooling is adequate.
Software and calibration
- Ensure TCM/PCM software is up to date with official updates from the dealer or authorized service tooling.
Filtration and cleanliness
- If the vehicle has planned valve body service or fluid changes, ensure proper cleaning, proper gasket/seal replacement, and use correct torque specs to avoid leaks.
Monitor symptoms
- If you notice shifting anomalies, address them early rather than waiting for a complete failure. Early intervention often reduces total repair costs and minimizes risk to the transmission.
Closing notes on data limitations
- The provided data states: No recalls found in NHTSA database for 2021-2024 Dodge Durango with this issue, and no owner complaints specifically for P0750 in the given dataset. Consequently, this diagnostic guide emphasizes typical failure modes and standard repair pathways rather than a vehicle-specific defect history.
- Real-world results may vary. Always corroborate with up-to-date service information from the manufacturer (TIS/Service Manual), a dealer, or a qualified transmission specialist for your exact Durango model year and transmission variant.