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Idler Pulley

Engine, Cooling and Exhaust › Engine
Unified entry — merged from multiple cross-listed pages in the original manual.

Labor

Replace — Serpentine Idler Pulley0.5 hr
Warranty 0.0 hrSkill B
To R&R Each Additional Idler Pulley, Add0.1 hr
Warranty 0.0 hrSkill B
Procedures
Accessory Drive Idler Pulley - Installation2 steps
Fig. 1
Fig. 1
Fig. 2
Fig. 2
  1. Install pulley and pulley bolt to tensioner. Tighten bolt to 61 Nm (45 ft. lbs.) torque.
  2. install accessory drive belt.Serpentine Accessory Drive Belt - Installation.
Accessory Drive Idler Pulley - Removal3 steps
Fig. 1
Fig. 1
Fig. 2
Fig. 2
  1. Remove accessory drive belt Serpentine Accessory Drive Belt - Removal
  2. Remove cover.
  3. Remove bolt and pulley.
Factory service manual
From the 2008 KK factory manual — descriptions, specs, torque & procedures for this part.
IDLER PULLEY-REMOVAL-2.8L DIESEL📷 1
CAUTION: The retaining bolts on the idler pulleys are left hand thread.
1. Disconnect negative battery cable. 2. Remove accessory drive belt. See BELT-ACCESSORY DRIVE. 3. Remove idler pulley retaining bolts and pulley.
figure
REMOVAL-4.0L📷 2
1 - IDLER PULLEY 2 - ACCESSORY DRIVE BELT TENSIONER 3 - MOUNTING BOLT
1. Remove accessory drive belt. See BELT-ACCESSORY DRIVE. 2. Remove cover. 3. Remove bolt and pulley (1).
figure
figure
IDLER PULLEY-INSTALLATION-2.8L DIESEL📷 1
1. Install idler pulley and retaining bolt. Tighten bolts to 53 N.m (39 ft. lbs.) 2. Install accessory drive belt. See INSTALLATION. 3. Connect negative battery cable.
figure
INSTALLATION-4.0L📷 1
1 - IDLER PULLEY 2 - ACCESSORY DRIVE BELT TENSIONER 3 - MOUNTING BOLT
  1.   Position idler pulley (1).
  2.   Tighten bolt to (3) 28 N.m (250 in. lbs.).
  3.   Install cover.
  4.   Install accessory drive belt. See INSTALLATION.
COOLANT
figure