1986 TOYOTA PICKUP

Typical onset: 120,000-180,000 mi

Symptoms: Rattling noise on cold startup that fades after 10-20 seconds, Metallic slapping sound from timing cover under acceleration, Check engine light with timing-related codes (22RE EFI only), Sudden catastrophic failure: bent valves, destroyed piston tops if chain jumps

Fix: Replace timing chain, guides, tensioner, and rails as a complete kit. Water pump and front main seal while you're in there. 6-8 hours labor for experienced tech, 10-12 for DIY first-timer. If chain jumped and valves kissed pistons, you're looking at head removal and valve work adding another 8-10 hours.

Estimated cost: $800-1,400 preventive / $2,500-4,000 if internal damage occurred

Typical onset: 150,000-220,000 mi

Symptoms: White smoke from exhaust on startup, Coolant loss with no visible leaks, Milky oil on dipstick or oil cap, Overheating under load, bubbles in radiator when running

Fix: Head gasket replacement requires removing intake/exhaust manifolds, resurfacing head if warped (common). Always check head for cracks between valves. 10-14 hours labor. Factor in new head bolts, valve cover gasket, all coolant hoses—they'll be brittle.

Estimated cost: $1,200-2,200

Symptoms: Hard starting when cold, requires pumping throttle, Rough idle that smooths out at higher RPM, Hesitation or stumble during acceleration, Black smoke from exhaust, poor fuel economy

Fix: The Aisin carburetor develops vacuum leaks, worn throttle shafts, and clogged jets. Rebuild kits run $60-120, labor is 3-5 hours for proper disassembly, cleaning, and tuning. Many shops won't touch carbs anymore—finding someone competent is half the battle. Weber 32/36 conversion is popular DIY alternative.

Estimated cost: $300-600 rebuild / $400-500 Weber swap DIY

Typical onset: 100,000-150,000 mi

Symptoms: Wandering on highway, constant steering corrections needed, Clunking from front end over bumps, Play in steering wheel (more than 2 inches free movement), Uneven tire wear on front

Fix: Combination of worn tie rod ends, king pin bearings, steering box wear, and pitman/idler arm bushings. You rarely fix just one thing—by the time slop is noticeable, multiple components are shot. Plan on tie rods (inner and outer), king pin service or birfield joints, steering box adjustment or replacement. 8-12 hours for comprehensive front-end overhaul.

Estimated cost: $1,200-2,500

Symptoms: Visible rust perforation on frame rails, especially behind cab and rear leaf spring mounts, Scaling and flaking paint underneath truck, Leaf spring shackles pulling through rusted frame, Body mounts crumbling, cab sitting lower

Fix: This is the truck killer. Surface rust is manageable with wire brushing and POR-15, but once the C-channel rails have holes or the rear crossmember is gone, repair means cutting out sections and welding in new steel. Frame-off is 40+ hours. Many trucks get totaled or parted out rather than fixed.

Estimated cost: $3,000-8,000+ depending on extent

Typical onset: 150,000+ mi

Symptoms: Hard starting when cold despite good battery and fuel pressure, Gasoline smell in engine bay after cold soak, Black soot around cold start injector on intake manifold, Fuel pressure drops overnight

Fix: The cold start injector and its time switch fail, causing flooding or no-start. Injector is $80-150, time switch another $60-100. Labor is 1-2 hours to access and replace both. While you're there, check main injector o-rings—they leak too.

Estimated cost: $250-450

Typical onset: 80,000-120,000 mi

Symptoms: Clunking from rear over bumps, Rear axle feels like it's shifting side to side, Visible wear or cracks in rubber bushings, Truck sits lower in rear, sagging

Fix: Shackles and bushings wear out, especially if truck was used for hauling or off-road. Replacement is straightforward but hardware often rusts solid—factor in cutting off bolts and drilling out. 2-3 hours per side. Polyurethane bushings last longer but transmit more noise.

Estimated cost: $300-600 both sides