142 / 144 / 145

1966-1974 / Sedan / Estate / Sweden

All 142 / 144 / 145 problems All workshop issues

Common Transmission and Drivetrain

Differential Whine or Clunking

Symptoms

Whining or howling from the rear axle, especially under load or deceleration. Clunking when changing direction.

Cause

Worn diff bearings, incorrect backlash, low oil, contaminated oil, worn pinion or crown wheel.

Fix

Check the diff oil level and condition (should be clean, not milky or metallic).

Top up with the correct grade (usually SAE 80W-90 or 85W-140).

If noise persists, the diff needs stripping and inspection.

Worn bearings or gears require replacement, not a DIY job unless you have experience setting backlash.

A clunking diff often just needs new halfshaft bolts or a shimmed pinion flange.

Know something we don't?

Owned a Volvo 142 / 144 / 145? Share your experience with this issue. What worked, what didn't, costs, tips. Help the community.

Submit an update

// More 142 / 144 / 145 problems

Other known issues

Common Transmission and Drivetrain

Worn Clutch (Manual Transmission)

Slipping under load (engine revs rise without acceleration), high biting point, difficulty engaging gears, juddering on takeoff, burning smell.

Common Transmission and Drivetrain

Gearbox Oil Leaks (Manual and Automatic)

Oil pooling under the gearbox, wet bellhousing, low oil level, whining or grinding from the box.

Common Transmission and Drivetrain

Worn Propshaft Centre Bearing

Vibration or droning at highway speeds, clunking on takeoff or gearshifts, visible play in the propshaft.

Common Engine

Oil Leaks from Front and Rear Crankshaft Seals

Persistent weeping or pooling of oil beneath the engine, especially at the front timing cover or rear main seal area. You'll see oil misting onto the bellhousing or dripping from the sump.

Common Engine

Worn Valve Guides and Oil Consumption

Blue smoke on startup or deceleration, fouled spark plugs, rising oil consumption between changes (more than half a litre per 1,000 km).

Common Engine

Carburettor Issues (SU or Zenith-Stromberg)

Rough idle, hesitation, stalling when cold, flat spots under acceleration, poor fuel economy, black exhaust smoke.

View all 21 142 / 144 / 145 problems