The crankshaft pulley bolt may become loose or break causing loss of power steering operation and other related engine accessories. Some of these vehicles may be involved in a recall for this issue. Our technicians tell us that an updated bolt may be available. Replacing as necessary and properly torquing the crankshaft bolt will commonly correct this issue.
Car Problem Reports
Mitsubishi Montero Loose or Broken Crankshaft Pulley Bolt
Mitsubishi Montero Problem
Engines Affected: 3.0L V6, 3.5L V6
Average Mileage: 168,923 mi (80,000 mi - 275,000 mi)
Visitor, 1996 Mitsubishi Montero, 3.0L V6, 200,000 mi
the roll pin holding the crankshaft pulley to the timing sprocket broke, probably due to loose crank bolt.
Visitor, 1996 Mitsubishi Montero, 3.0L V6, 190,000 mi
Crank bolt got loose and caused the harmonic balancer to sheer the roll pin that holds it to the sprocket. It also wore out the inside of the balancer. Replacing balancer and pin and re-torqueing bolt to spec.
Visitor, 1995 Mitsubishi Montero, 3.5L V6, 190,000 mi
Loose crankshaft pulley bolt
Visitor, 2000 Mitsubishi Montero, 3.5L V6, 145,000 mi
BOLT CAME LOOSE SHEERED ROLL PIN. DRILLED OUT OLD ROLL PIN REPLACED WITH NEW BOLT AND PIN. NOTE: ADD BLUE THREADLOCKER TO NEW BOLT AND USE REVISED TORQUE SPECS.
Visitor, 2002 Mitsubishi Montero, 3.5L V6, 125,000 mi
pulley slipped and sheared the roll pin. where do I buy another one?
Harmonic balancer bolt came out and balancer flew off motor on freeway. Had to buy new one. Installed and now loose after 2 days again. Looking for permanent solution.
Visitor, 2001 Mitsubishi Montero, 3.5L V6, 200,000 mi
roll pin sheared (twice) causing bolt on harmonic balencer to loosen
Visitor, 1997 Mitsubishi Montero, 3.5L V6
This is the second time the crankshaft pulley bolt has sheared off in the engine. I don't know why it keeps happening.
Visitor, 1996 Mitsubishi Montero, 3.5L V6, 190,000 mi
bolt came loose on the crank shaft leaving me stranded at the store, sheared the roll pin, now im on my way to the junk yard to find another one,
Crank bolt came loose and almost blew the engine and harmonic balancer. cost me $1,300 to fix