CAN COMMUNICATION â NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗2007 Nissan Titan engine problems
moderate 21 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
21
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 21 engine complaints filed for the 2007 Nissan Titan, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
VK56 CONNECTING ROD CAP BOLT SERVICE INFORMATION SERVICE INFORMATION A change has been made to the connecting rod cap bolt service part. The new service part (B in Figure 1) is visually different, but is a direct replacement for the original equipment part. IMPORTANT: See page 2 for the procedure to inspect the cap bolt service part for excessive stretch. If replacement of a single connecting rod cap bolt is indicated for any given connecting rod, both connecting rod cap bolts of the affected connecting rod must be replaced as a set.
full bulletin at NHTSA ↗2006-2015 TITAN; MIL ON WITH DTC P0448 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
full bulletin at NHTSA ↗These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2007 Nissan Titan's engine and exhaust system shows a clear pattern of early failure. The exhaust manifold cracks frequently—starting at 35,000 miles in one case—producing clicking, ticking, or loud rattling sounds from the engine compartment. Owners smell exhaust fumes inside the cabin or notice a rotten-egg odor. Multiple owners report the manifold cracking on both sides, and at least one had to replace the passenger side twice and the driver side three times without a root cause identified by the dealer. A recall covers these failures up to 8 years and 80,000 miles, but some owners fall outside that window or have had non-original parts installed, blocking coverage.
Beyond manifolds, owners report the tailpipe and muffler rusting from the inside out and separating from the vehicle, even at relatively low mileage. One owner faced a $2,000 repair bill for manifold work. A single critical incident involved unintended acceleration at 8,000 miles where the brake pedal failed to respond—the driver shifted to neutral to regain control, though the problem recurred three times after the dealership replaced the throttle chamber. Another owner reported cold-start hesitation at 146,000 miles and coolant loss at 64,000 miles. Diagnostic codes varied, with one showing a Service Engine Light related to the exhaust system.
Same Nissan Titan engine reports on nearby years: 2005 · 2006 · 2008
Failure modes owners describe
Cracked or leaking exhaust manifold
Exhaust manifolds crack or develop fractures, often in multiple areas, causing fumes and noise. Owners report both driver-side and passenger-side failures, with some requiring multiple replacements. Cracks occur early in the vehicle's life relative to typical manifold durability.
When: 35,000 to 214,000 miles; most commonly 65,000–129,000 miles
Symptoms owners cite: Clicking, ticking, or loud rattling noise from engine compartment; Abnormal exhaust odor in cabin or under hood; Fumes entering passenger compartment; Loud noise that increases with acceleration
Codes mentioned: Service Engine Light (code not specified in narratives)
Repairs/costs cited: Exhaust manifold replacement required. One owner reported dealer estimate of approximately $2,000 for parts and labor.
Recalls/TSBs owners mention: A recall exists covering exhaust manifold failure up to 8 years/80,000 miles; one owner's VIN was excluded from coverage. Dealer unable to identify root cause for recurring failures in at least one case.
Unintended acceleration with brake failure
Engine surges to unexpectedly high speed when accelerating. Brakes became unresponsive, forcing owner to shift to neutral and brake manually to regain control. Issue recurred three times after throttle chamber replacement.
When: 8,000 miles (failure mileage); vehicle was on cruise control at 65 mph
Symptoms owners cite: Sudden, uncontrolled engine acceleration; Brake pedal unresponsive; Engine revving loudly and sounding rough after restart
Repairs/costs cited: Throttle chamber replaced at dealership; failure recurred three times post-repair.
Cold-start hesitation
Vehicle hesitates to start after sitting unused for several days. Starting improves in warmer temperatures. Attempted repair at dealership blocked due to non-OEM replacement parts already installed.
When: 146,000 miles; behavior worsened in temperatures below 50°F
Symptoms owners cite: Hard starting after extended sitting; Multiple start attempts required; Temperature-dependent starting difficulty
Repairs/costs cited: Starting fluid required to aid initial start. Dealership blocked recall service citing non-original parts.
Recalls/TSBs owners mention: Recall repair available but refused due to non-OEM parts on vehicle.
Loss of engine power
Engine lost power while driving, vehicle speed decreased, forcing emergency pull-over. Diagnosed as exhaust failure.
When: 165,264 miles at 50 mph
Symptoms owners cite: Sudden power loss; Inability to maintain speed
Recalls/TSBs owners mention: Fuel system recall exists but owner's VIN was excluded from coverage.
Coolant loss and overheating
Radiator found empty, causing engine to run hot while vehicle was idling in drive. Single reported instance.
When: 64,000 miles
Symptoms owners cite: Engine running hot; No coolant in radiator
Premature exhaust system corrosion
Tailpipe, muffler, and associated components rusted from inside out and fell off the vehicle. Reported on vehicles with relatively low mileage.
When: 71,000 miles and 64,000–80,000 miles range
Symptoms owners cite: Internal rust formation; Exhaust components falling from vehicle
Repairs/costs cited: Tailpipe and muffler replacement required.
Catalytic converter failure
Abnormal ticking noise during engine operation diagnosed as catalytic converter requiring replacement.
When: 80,000 miles
Symptoms owners cite: Abnormal ticking noise when engine running
Repairs/costs cited: Catalytic converter replacement needed.
Synthesized from 21 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Tl* the contact owns a 2007 Nissan titan. The contact noticed an abnormal noise coming from the engine. In addition, the contact discovered that the exhaust manifold fractured causing the exhaust to leak. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 35,000.
Had engine trouble with your 2007 Nissan Titan?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2007 Nissan Titan?
It's a documented issue but not catastrophic. 21 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 19 complaints that reported odometer mileage, most engine failures cluster between 65,000 and 146,000 miles, with the median around 83,000. A quarter of owners report trouble before 65,000; a quarter make it past 146,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2007/Nissan/Titan.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.