The 2007 S-Type with the 3.0L V6 shares its platform with Lincoln LS and suffers from catastrophic timing chain tensioner and engine oil pump failures that can grenade the motor, plus transmission cooling system weaknesses that kill ZF automatics prematurely.
Timing Chain Tensioner and Guide Failure Leading to Engine Destruction
Common · high severityTypical onset: 80,000-130,000 mi
Symptoms: Rattling on cold start that quiets after warm-up, Check engine light with cam/crank correlation codes, Sudden catastrophic failure: timing jump destroys valves and pistons, Metal shavings in oil from disintegrating guides
Fix: Preventive: 8-10 hours labor to replace tensioners, guides, and chains with updated parts. Post-failure: complete engine rebuild or replacement required (40-60 hours). This is THE Achilles heel of the Duratec 3.0.
Estimated cost: $2,500-4,000 preventive; $8,000-14,000 rebuild
Oil Pump Failure and Bearing Damage
Occasional · high severityTypical onset: 100,000-150,000 mi
Symptoms: Low oil pressure warning light at idle when hot, Knocking or ticking from bottom end, Metal particles in oil filter during changes, Sudden loss of pressure followed by seizure
Fix: Oil pump is in the front timing cover; if caught early, 12-15 hours for pump and pan drop to inspect bearings. If bearings spun, full short block needed (50+ hours).
Estimated cost: $3,000-5,000 pump only; $9,000-15,000 short block
Transmission Oil Cooler Line Failure and Trans Overheating
Common · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Transmission fluid leaking from front of vehicle near radiator, Harsh shifting or slipping after highway drives, Burnt ATF smell, dark red or brown fluid, Complete trans failure if driven overheated
Fix: Replace external cooler lines and flush system (3-4 hours). If internal ZF damage occurred, rebuild or replacement (18-24 hours). Preventive cooler line replacement at 80k saves transmissions.
Estimated cost: $600-1,200 lines only; $3,500-5,500 transmission rebuild
Fuel Tank Deformation and Fuel Pump Access Issues
Occasional · medium severitySymptoms: Fuel gauge reads inaccurately or erratically, Difficulty filling tank, pump clicks off repeatedly, Check engine light with fuel system codes, Hard starting or stalling when tank below quarter full
Fix: Tank can deform over time (NHTSA recall related). Fuel pump replacement requires dropping tank (4-5 hours). If tank is warped, replacement needed (6-8 hours).
Estimated cost: $800-1,500 pump; $1,800-2,800 with tank
Transmission Mounts Collapsing
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Loud clunk when shifting from Park to Drive or Reverse, Vibration through floor at idle in gear, Excessive drivetrain movement visible when accelerating, Shifter feels sloppy or imprecise
Fix: Replace front and rear transmission mounts (2-3 hours). Delaying accelerates wear on CV axles and exhaust hangers.
Estimated cost: $400-700
Head Gasket Failures from Overheating Cascade
Occasional · high severityTypical onset: 90,000-140,000 mi
Symptoms: White smoke from exhaust on startup, Coolant loss with no visible leaks, Milky oil or oil in coolant reservoir, Overheating after failed water pump or thermostat ignored
Fix: Both head gaskets plus head resurfacing (18-22 hours). Often follows neglected cooling system issues. If heads are warped beyond .003, replacement heads needed.
Estimated cost: $3,500-5,500
Only buy if timing chains were done recently with receipts, transmission shifts perfectly, and you have a $5k emergency fund — these are ticking time bombs that can be wonderful cars if maintained obsessively.
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.