P0218 on Dodge: How to Diagnose & Fix
Transmission Over Temperature Condition
1 Dodge model · 1 documented issue · 1 critical · $150-$400 repair
P0218 on Dodge by model: symptoms, diagnosis and fix
The transmission cooler lines that connect to the integral transmission cooler in the radiator develop leaks at the quick-connect fittings and at the rubber-to-metal transition points. The factory quick-connect fittings become brittle and crack, and the rubber hose sections deteriorate from heat exposure. Slow ATF loss goes unnoticed until the transmission begins slipping or overheating. This is a leading cause of 62TE transmission failures in the Grand Caravan.
Common Symptoms
- Red/brown fluid puddle under the front of the vehicle
- Transmission slipping due to low fluid
- Burning smell from transmission overheating
- Visible fluid weeping at cooler line connections
- Transmission temperature warning on dash
How to Fix
Replace the transmission cooler lines with updated Mopar lines or aftermarket direct-fit replacements. Dorman 624-408 and 624-409 are popular aftermarket options. Some owners upgrade to braided stainless steel lines for durability. After replacing the lines, flush and refill the transmission with Mopar ATF+4 and check for proper flow through the cooler. Budget $150-$400 for parts and labor.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Mopar 5005204AG transmission cooler hose/tube assembly
Replace the leaking pressure/return assembly after identifying the leak at the radiator/cooler connection Fitment: Verified 62TE application subset through 2019; confirm VIN and 2020 supersession Live Mopar direct product page when checked
- Dorman 624-284 direct-fit transmission oil-cooler hose assembly
Aftermarket direct-fit replacement branch Fitment: Use AutoZone vehicle fitment for the exact Grand Caravan year/engine/62TE; replaces the unverified 624-408/624-409 recommendation Live AutoZone direct product page when checked
- Mopar 68218058AC ATF+4 fluid
Refill after line replacement and cooler-flow/leak verification Fitment: Use the service-manual quantity and level procedure for the 62TE repair state Live Mopar direct product page when checked
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Sources for this issue (1)
P0218 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 P0218 mean on a Dodge?
P0218 stands for "Transmission Over Temperature Condition." This code means the transmission fluid has gotten too hot and exceeded a safe temperature limit. The transmission's temperature sensor reported an overheat condition to the computer, which can be caused by an actual overheating situation or by a faulty sensor reporting a false reading. Excessive heat is one of the most damaging things for an automatic transmission, breaking down the fluid and accelerating wear, so this code should be addressed promptly. The vehicle may enter a reduced-power or limp mode to protect the transmission. On Dodge it is documented across 1 model: Grand Caravan.
What are the most common causes of P0218?
The most common causes of P0218 are: Low or old/degraded transmission fluid, Faulty transmission fluid temperature sensor, Clogged or restricted transmission cooler or lines, Heavy load/towing or stop-and-go driving overheating the fluid, Slipping clutches generating excess heat, Faulty cooling fan or radiator (shared cooling) issues, Internal transmission wear or restriction. The specific cause varies by vehicle.
How much does it cost to fix P0218 on a Dodge?
Published repair estimates on Dodge range from $150 to $400 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0218 on a different make?
View P0218 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.