The 2007 Dodge Caravan is a workhorse minivan plagued by two major weak points: catastrophic automatic transmission failures (especially oil cooler contamination) and 3.3L/3.8L V6 engine issues including head gasket leaks and lower-end failures. The 2.4L is less common but has its own valve-train problems.
Transmission Oil Cooler Failure Leading to Total Transmission Loss
Common · high severityTypical onset: 80,000-150,000 mi
Symptoms: Pink milkshake (coolant/ATF mixture) in radiator overflow or transmission pan, Transmission slipping, delayed engagement, or sudden no-movement, Overheating transmission temp gauge, Coolant loss with no external leaks
Fix: The internal trans cooler in the radiator ruptures, mixing coolant into ATF and destroying clutch packs and valve body. Requires radiator replacement, transmission rebuild or replacement, complete fluid flush of cooling system. 12-16 hours labor for full job with reman transmission.
Estimated cost: $3,200-5,500
3.3L/3.8L V6 Head Gasket Failure
Common · high severityTypical onset: 120,000-180,000 mi
Symptoms: White smoke from exhaust on cold start, Coolant consumption with no external leaks, Overheating, especially under load, Rough idle, misfires, or oil in coolant (if severe), Sweet smell from exhaust
Fix: These V6s have thin-wall casting and blow head gaskets between cylinders or into coolant passages. Often find warped heads requiring machine work. Both heads typically done together. 14-18 hours labor with head resurfacing.
Estimated cost: $2,800-4,200
3.3L/3.8L V6 Lower-End Bearing Failure
Occasional · high severityTypical onset: 150,000-200,000 mi
Symptoms: Heavy knocking from bottom of engine, worse when warm, Metallic rattling at idle that increases with RPM, Low oil pressure warning at idle, Metal shavings in oil filter or on magnetic drain plug
Fix: Rod or main bearings spin due to oil sludge buildup or wear. Often find scored crankshaft requiring replacement. Most cost-effective fix is used low-mileage engine or reman short block. 18-24 hours for engine R&R and short block swap.
Estimated cost: $3,500-6,000
Transmission Mount Collapse (Front/Rear)
Common · medium severityTypical onset: 90,000-140,000 mi
Symptoms: Clunk when shifting from Park to Drive or Reverse, Excessive vibration at idle in gear, Visible engine/trans movement when revving in Park, Drivetrain shudder on acceleration
Fix: Hydraulic mounts fail and the transmission droops, causing driveline angles to change and CV axle bind. Front mount most common failure. 2-3 hours for front, rear adds another 1.5 hours if needed.
Estimated cost: $350-650
2.4L I4 Valve Cover and Rocker Arm Noise
Occasional · medium severityTypical onset: 100,000-160,000 mi
Symptoms: Ticking or tapping from valve cover area, Oil leaking from valve cover onto exhaust manifold (burning oil smell), Check engine light with camshaft position sensor codes, Rough running if rocker arm wears through and loses lash
Fix: The 2.4L DOHC has weak rocker arms that wear cam lobes and make noise. Valve cover gasket also leaks oil. Often need cam followers and sometimes camshaft resurface. 4-6 hours for valve cover service plus rocker replacement.
Estimated cost: $800-1,400
EVAP System Leaks and Check Engine Lights
Common · low severityTypical onset: 70,000-130,000 mi
Symptoms: P0442, P0456 (small EVAP leak) or P0440 (large leak) codes, Check engine light after refueling, Fuel smell near rear of vehicle, Failed emissions test
Fix: Common culprits are failed EVAP canister, cracked vent valve, or deteriorated hoses at charcoal canister. Smoke test required to pinpoint. Gas cap rarely the issue. 1.5-3 hours depending on component location.
Estimated cost: $250-600
Power Sliding Door Motor and Track Failures
Occasional · low severityTypical onset: 80,000-150,000 mi
Symptoms: Door stops mid-cycle or reverses, Grinding or clicking noise during operation, Door won't latch or open on command, Warning chime and door ajar light even when closed
Fix: The power door motors and plastic rollers/tracks wear out. Door often binds if track is dirty or bent. Motor replacement is 2-3 hours, track cleaning and roller replacement adds another hour. Often need both sides eventually.
Estimated cost: $500-1,200
Buy only if under 100,000 miles with documented transmission cooler bypass, extended trans fluid changes, and no history of overheating — otherwise budget $4,000+ for inevitable powertrain work.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.