SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008HHR LS, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 14 (ENGINE MECHANICAL - 2.0L)REPAIR INSTRUCTIONS - ON VEHICLETIMING CHAIN TENSIONER REPLACEMENTINSTALLATION PROCEDURE
2008 Chevrolet HHR LS, Automatic

Installation Procedure

2008 Chevrolet HHR LS, AutomaticSECTION Installation Procedure
WARNING: This page is about a different variant/trim than selected.
    Fig 1: Measuring Timing Chain Tensioner Assembly
    GM714496Courtesy of GENERAL MOTORS CORP.
  1. Inspect the timing chain tensioner. If the timing chain tensioner, O-ring seal, or washer is damaged, replace the timing chain tensioner or O-ring seal as applicable.
  2. Measure the timing chain tensioner assembly from end to end. If the timing chain tensioner is to be replaced, a new tensioner should be supplied in the fully compressed non-active state. A tensioner in the compressed state will measure 72 mm (2.83 in) (a) from end to end. A tensioner in the active state will measure 85 mm (3.35 in) (a) from end to end.
    3. Fig 2: Compressing Timing Chain Tensioner
    GM797246Courtesy of GENERAL MOTORS CORP.
  3. If the timing chain tensioner is not in the compressed state, perform the following steps:
    1. Remove the piston assembly from the body of the timing chain tensioner by pulling it out.
    2. Install the J 45027-2 (2) into a vise.
    3. Install the notch end of the piston assembly into the J 45027-2 (2).
    4. Using the J 45027-1 (1), turn the ratchet cylinder into the piston.
    4. Fig 3: Measuring Timing Chain Tensioner Assembly
    GM714496Courtesy of GENERAL MOTORS CORP.
  4. Inspect the bore of the tensioner body for dirt, debris, and damage. If any damage appears, replace the tensioner. Clean dirt or debris out with a lint-free cloth.
  5. Install the compressed piston assembly back into the timing chain tensioner body until it stops at the bottom of the bore. Do not compress the piston assembly against the bottom of the bore. If the piston assembly is compressed against the bottom of the bore, it will activate the tensioner, which will then need to be reset again.
  6. At this point the tensioner should measure approximately 72 mm (2.83 in) (a) from end to end. If the tensioner does not read 72 mm (2.83 in) (a) from end to end, repeat steps 3-5.
    7. Fig 4: Identifying Timing Chain Tensioner
    GM412158Courtesy of GENERAL MOTORS CORP.
  7. Inspect to ensure all dirt and debris is removed from the timing chain tensioner threaded hole in the cylinder head.
    8. NOTE: Refer to Fastener Notice .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.