The 2007 Xterra with the VQ40DE is a capable off-road SUV undermined by catastrophic transmission cooler failures (SMOD) and a known engine defect causing premature timing chain/bearing wear. Both can total the vehicle if ignored.
Strawberry Milkshake of Death (SMOD) - Transmission Cooler Failure
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Pink or red fluid in coolant overflow tank (transmission fluid mixing with coolant), Transmission slipping, delayed shifts, or complete failure, Coolant level dropping with no external leaks, Engine overheating after transmission starts slipping
Fix: The factory cooler inside the radiator fails, allowing coolant and ATF to cross-contaminate. Requires new radiator with external cooler bypass, complete transmission flush (often full rebuild or replacement if caught late), coolant system flush. If coolant entered transmission: 8-12 hours labor for trans R&R and rebuild. Preventive fix: 3-4 hours to replace radiator and install external cooler.
Timing Chain System Failure - Secondary Chains and Guides
Common · high severity
Typical onset: 100,000-180,000 mi
Symptoms: Cold-start rattle for 2-5 seconds that worsens over time, Check engine light with cam/crank correlation codes (P0021, P0011), Loss of power, rough idle, or misfires at higher mileage, Metal shavings in oil, oil pressure warning light (advanced failure)
Fix: VQ40DE has weak secondary timing chain tensioners and guides that wear prematurely. Requires front-cover removal, all three chains, tensioners, guides, and often VVT solenoids. Many techs also replace oil pump and water pump while in there. 14-18 hours labor. Neglect leads to jumped timing and valve/piston contact.
Estimated cost: $2,800-4,200
Rod and Main Bearing Wear - Pre-Ignition Damage
Occasional · high severity
Typical onset: 120,000-200,000 mi
Symptoms: Knocking or ticking from lower engine block under load, Oil pressure dropping at idle when engine is hot, Metal flakes on oil drain plug magnet, Sudden catastrophic failure (spun bearing, thrown rod)
Fix: VQ40DE suffers from pre-ignition issues that hammer bearings, especially if timing chains were neglected or low-quality oil used. Requires short-block replacement or full rebuild with crank polish/replacement, all bearings, often pistons/rings. 24-32 hours labor for full rebuild in-frame, more for removal.
Estimated cost: $4,500-7,500 rebuild, $6,000-9,000 with crank replacement
Transmission Cooler Lines and External Cooler Leaks
Occasional · medium severity
Typical onset: 90,000-140,000 mi
Symptoms: ATF puddles under vehicle, typically passenger side, Low transmission fluid level, burnt smell, Transmission temperature warning or slipping when fluid gets low
Fix: Hard lines rust through at fittings, rubber hoses crack from heat. External aftermarket coolers (installed post-SMOD fix) can also leak at crimps. Inspect entire cooling circuit. Line replacement: 2-3 hours. External cooler replacement: 1.5-2 hours.
Estimated cost: $300-600
Front Lower Control Arm Bushing Failure
Common · medium severity
Typical onset: 70,000-120,000 mi
Symptoms: Clunking over bumps from front suspension, Steering wander or vague on-center feel, Uneven or cupped tire wear on inside edges, Visible torn or missing rubber on control arm bushings
Fix: Factory bushings are undersized for off-road use and tear easily. Nissan issued a recall for some batches but many still fail. Replace both lower control arms with updated parts or aftermarket heavy-duty units. Requires alignment afterward. 2.5-3.5 hours labor both sides.
Estimated cost: $500-800
Rear Differential Breather Clogging and Seal Leaks
Occasional · low severity
Typical onset: 60,000-100,000 mi
Symptoms: Gear oil seeping from pinion seal or axle seals, Whining or howling from rear end under acceleration, Breather tube clogged with mud (off-road use), Low differential fluid level
Fix: Breather gets plugged, pressurizes housing, blows seals. Common on off-road rigs. Clean/relocate breather, replace failed seals. Pinion seal: 2-3 hours. Axle seals: 1.5 hours each side. Check fluid for metal content.
Estimated cost: $250-500
Owner tips
Replace radiator and install external transmission cooler BEFORE 100k miles to prevent SMOD—this is mandatory preventive maintenance
Use quality full-synthetic oil (0W-20 or 5W-30) and 5k mile intervals to slow timing chain wear; listen for cold-start rattle and address immediately
Inspect timing chains at 100k miles even without symptoms—early catch saves the engine
Check transmission fluid color monthly; pink or milky = stop driving immediately
Avoid sustained high RPM or towing without transmission temp gauge; VQ40DE runs hot
Buy only if SMOD fix and timing chains are already done with records, or budget $3k-5k immediately for both; otherwise it's a ticking time bomb that will strand you.
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.
Fitment notes: Engine bay location; standard top post terminals
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Every control module on the 2005-2015 Nissan Xterra — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Anti-lock Brake System Control Unit (ABS)1.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Engine bay, driver side inner fender near master cylinder
🔧 Nissan CONSULT-III Plus or aftermarket scan tool
⚠️ Integrated with hydraulic unit; brake bleeding and steering angle sensor calibration required
Tire Pressure Monitoring System Receiver (TPMS)0.6 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Behind center console or under driver seat
🔧 Nissan CONSULT-III Plus or TPMS relearn tool
⚠️ 2008+ models; sensor ID registration required after tire rotation or replacement
Audio Visual Control Unit (AV)0.6 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Center dash, in radio/navigation slot
🔧 Nissan CONSULT-III Plus or vehicle menu
⚠️ Navigation models require initialization; radio code may be needed on some units
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
SUSPENSION:FRONT:CONTROL ARM:LOWER ARM · 10E019000
2010-05-20
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN NOVEMBER 25, 2009 AND MAY 14, 2010 AS REPLACEMENT PARTS FOR MODEL YEAR 2004 THROUGH 2010 TITAN, ARMADA, AND QX56, AND MODEL YEARS 2005 THROUGH 2010 FRONTIER, XTERRA, AND PATHFINDER VEHICLES. THE LOWER CONTROL LINK ASSEMBLY HAS TWO CYLINDRICAL COLLARS FORMING THE INBOARD ATTACHMENT POINTS TO THE CHASSIS. DUE TO AN IMPROPER WELDING PROCESS SOME COLLARS MAY CONTAIN WELDS THAT DO NOT MEET STRENGTH SPECIFICATIONS.
Consequence: IF THE COLLAR WELD SEPARATES, THE VEHICLE HANDLING WILL DETERIORATE, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: NISSAN WILL NOTIFY OWNERS AND DEALERS WILL REPLACE ANY AFFECTED LOWER LINK FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JULY 12, 2010. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
AIR BAGS:FRONTAL · 08V690000
2008-12-29
NISSAN IS RECALLING 242,720 MY 2005-2009 PATHFINDER, FRONTIER AND XTERRA VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA. IN THOSE AREAS OF THE COUNTRY WHICH USE HEAVY CONCENTRATIONS OF ROAD SALT IN THE WINTER, A MIXTURE OF SNOW/WATER AND SALT CAN ENTER INTO THE FRONT CRASH ZONE SENSOR (CZS) HOUSING. IF THIS OCCURS, THE CZS MAY INTERNALLY RUST RESULTING IN A SIGNAL INTERRUPTION. IF THIS HAPPENS, THE RED AIR BAG WARNING LIGHT WILL ILLUMINATE TO ALERT THE VEHICLE OPERATOR.
Consequence: THIS ISSUE COULD RESULT IN THE NON-DEPLOYMENT OF THE DRIVER AND PASSENGER FRONT AIR BAGS IN A CRASH, INCREASING THE RISK OF PERSONAL INJURY.
Remedy: DEALERS WILL REPLACE THE FRONT CZS WITH A REDESIGNED SENSOR. THE RECALL BEGAN ON JANUARY 26, 2009. OWNERS IN THE OTHER STATES WILL RECEIVE EXTENDED WARRANTY COVERAGE FOR THE SENSOR TO 10 YEARS. THESE OWNERS WILL BE NOTIFIED OF THE WARRANTY EXTENSION BY MAIL AND WILL RECEIVE A STICKER TO PLACE IN THEIR WARRANTY BOOKLET EXPLAINING THE EXTENDED WARRANTY COVERAGE. OWNERS MAY CONTACT NISSAN AT 1-800-647-7261.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2007 Nissan Xterra 4.0L V6 VQ40DE and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.