1995 TOYOTA T100

Typical onset: 80,000-150,000 mi

Symptoms: White smoke from exhaust on cold start, Coolant consumption with no visible leaks, Milky oil on dipstick or oil cap, Overheating under load or towing, Rough idle and misfires once coolant enters cylinders

Fix: Both head gaskets fail due to inadequate factory torque specs and thin gasket design. Requires removing both heads, surfacing if warped, ARP studs recommended over OEM bolts, upgraded MLS gaskets. 12-16 labor hours. Many shops do timing belt, water pump, and all coolant hoses while in there since you're 90% of the way there already.

Estimated cost: $2,200-3,800

Typical onset: 100,000-140,000 mi

Symptoms: Clunking over bumps from front suspension, Steering wander and vague on-center feel, Tire wear on inside edge, Visible grease boot tears on ball joint, Excessive play when prying tire at 6-and-12 position

Fix: OEM ball joints are pressed into the lower control arm. Most techs replace the entire lower control arm assembly to avoid press work and guarantee fitment—2.5 hours per side. Alignment mandatory after. If one side is bad, do both—the other is right behind it.

Estimated cost: $600-900

Typical onset: 90,000-160,000 mi

Symptoms: Transmission fluid dripping near radiator or frame rail, Pink ATF stains on undercarriage, Low fluid level on dipstick after topping off repeatedly, Delayed engagement or slipping if fluid gets critically low

Fix: Steel cooler lines rust through where they route along the frame and at crimp fittings. Replace both feed and return lines as a set—Original steel lines rot again; aftermarket rubber hose kits with braided stainless are popular upgrades. 2-3 hours labor, includes fluid refill and leak check.

Estimated cost: $350-600

Typical onset: 120,000-180,000 mi

Symptoms: No-start with cranking but no fuel pressure, Stalling at operating temperature or under load, Hesitation and surging during acceleration, Whining noise from fuel tank area before total failure

Fix: Denso pumps are generally reliable but eventually wear out. Requires dropping the fuel tank on 4WD models (2WD has access panel under bed). Replace pump assembly with OEM or quality aftermarket—cheap pumps fail early. 3-4 hours labor. Do the fuel filter at the same time since tank is down.

Estimated cost: $550-850

Symptoms: Visible surface rust turning to flaking and holes, Bed mounts cracking or separating from frame, Rear leaf spring hanger corrosion, Fails inspection in salt-belt states

Fix: Not a recall on T100 like Tacoma/Tundra but same humid/salt exposure causes rot. Rear crossmember can be replaced with aftermarket or fabricated section—8-12 hours if welding required. Bed mounts can be patched or plated. Catch it early before structural integrity is compromised.

Estimated cost: $800-2,500

Symptoms: No-start or slow cranking when engine is hot, Works fine after cooling for 20-30 minutes, Clicking from starter solenoid but no engagement, Intermittent starting issues in summer or after short trips

Fix: Starter sits close to exhaust on 3.4L and heat-soaks the solenoid contacts. Rebuild or replacement fixes it—OEM Denso units last longest. 1.5-2 hours labor. Heat shields and shims help but don't cure weak starters.

Estimated cost: $350-550