Saturn Aura 2007–2009 Repair & Owner’s Manual Collection (P/N 15864099 B)

The owner manuals explain vehicle operation and scheduled care, while the service sections provide component testing, repair procedures and workshop specifications.

Coverage distinctions: The Aura vehicle-system sections carry 2007 headers; the owner manuals cover all three listed years. The 2.4L LAT mechanical extract, identified by VIN engine code 5, must be distinguished from the LE5/VIN B information in the later owner manuals.

The shared 3.6L LY7 extracts contain references to other GM applications and 5L40-E/5L50-E transmissions. Their vehicle-specific removal and installation procedures should not be treated as dedicated Aura instructions.

PDF Search, Bookmarks and Page Breakdown

Search and diagram detail: The owner manuals and most service text support text search. The five 3.6L files and both trouble-code references have no searchable text layer; many wiring labels are embedded in images. Embedded bookmarks are available in the three owner manuals only. Small labels on the sampled wiring diagrams require zooming.

The ZIP contains 8,252 pages across 44 printable PDFs. The totals include original introductory material, indexes and notes pages, plus 66 blank ending pages within the five 3.6L files.

Engine, Drivetrain and Vehicle-System Coverage

The following selected contents highlight the repair material rather than reproduce the complete contents list. Other examples include compass calibration and sunroof drain inspection.

• Engine mechanical repair: Diagnosis, cylinder-head work, timing-system service, engine replacement and internal overhaul in the LAT and LZ4 sections, with shared LY7 repair extracts supplied separately.

• Automatic transmissions: 4T45-E and 6T70/6T75 symptom diagnosis, pressure checks, torque-converter testing, clutch inspection, internal repair and adaptation procedures.

• Brakes and ABS: Pad, rotor and caliper service, hydraulic fault diagnosis, manual and pressure bleeding, parking-brake adjustment and ABS automated bleeding.

• Steering and suspension: Electric and hydraulic steering diagnosis, pump and steering-gear service, strut work, wheel-hub replacement, control arms and axle shafts.

• Cooling and HVAC: Cooling-system pressure and leak tests, variant-specific filling procedures, manual HVAC diagnosis, compressor service, heater-core replacement and blower repairs.

• Electrical and restraints: Starting and charging tests, circuit diagrams, connector views, component locations, SIR fault diagnosis and passenger-presence-system information.

• Body and controls: Lighting, mirrors, seats, interior trim, defogger and wiper diagnosis, plus sunroof adjustment and motor initialization/teach procedures.

The service material is suited to professional technicians and experienced rebuilders with scan tools, precision measuring equipment and suitable lifting/support equipment; the separate owner guides are intended for vehicle owners.

Engine Diagnosis and Internal Repair

Mechanical fault isolation: Symptom tables connect misfire, internal noise, coolant contamination, oil consumption and accessory-drive complaints to relevant checks. Compression, cylinder-leakage, oil-pressure and ventilation tests support diagnosis before internal work is planned.

LAT construction: The aluminum block uses pressed-in iron liners and a bedplate-style lower crankcase. Dual balance shafts share a chain drive with the water pump; the camshafts use a separate chain, guides, hydraulic tensioner and position actuators.

The lubrication description traces pressurized oil through the crankshaft, connecting rods, balance shafts, camshaft bearings, hydraulic lash adjusters and timing-chain tensioner. It also identifies the front-cover gerotor pump and cartridge-style oil filter.

Repair depth: Step-by-step instructions cover camshaft and lifter work, valve seals and springs, cylinder-head replacement, oil-pan service, pistons, rods, bearings and cylinder sleeves. Off-vehicle work extends through block cleaning, honing, crankshaft inspection, piston/rod assembly, head rebuilding, oil-pump service, thread repair, balance-shaft timing and engine pre-lubrication.

The LZ4 material adds pushrod and rocker-arm procedures. The shared LY7 extracts cover primary and secondary timing chains, camshaft actuators, internal inspection and engine assembly, subject to the application limits above.

Illustrations, Tools and Repair Cautions

The LAT extract contains 582 numbered figures, including Cylinder Head and Components, Engine Block and Components, Timing Chain and Components, Identifying Proper Exhaust/Intake Camshaft Alignment Positions, Cylinder Head Bolt Tightening Sequence and Cutaway View of Lubrication System.

Cylinder-sleeve equipment includes EN 45680-850, with J 8087 for bore measurement and J 35667-A for leakage testing. Timing and balance-shaft tools include J 44217 and J 43650; J 45299 is the engine pre-luber.

Incorrect sleeve-installation methods can damage the engine, while miscentered balance-shaft tooling can damage the bearing bore and block. The tensioner section also addresses accidental piston activation and resetting.

Engine removal and overhaul work should be performed with suitable lifting/support equipment and the safety precautions specified for the operation.

Transmission, Chassis and Circuit Diagnosis

The 4T45-E material includes clutch functional air checks and transmission adaptive-pressure information. The 6T70/6T75 section adds input/output speed-signal testing, control-solenoid/TCM inspection, a scan-tool cleaning routine and Service Fast Learn Adapts.

Brake material extends to caliper overhaul and rotor lateral-runout correction. Steering sections distinguish EPS and HPS systems, while suspension procedures cover front struts, rear springs, hubs and links.

Color wiring diagrams cover engine-specific starting/charging circuits, power and ground distribution, data lines, transmission controls and supplemental restraints. System chapters add connector end views and diagnostic charts. The separate generic and GM code files provide code definitions rather than substitute for the applicable system tests.

Preview of LAT Ring and Bearing Clearances

The 2.4L LAT specification tables list compression-ring end gaps of 0.20–0.40 mm for the first ring and 0.35–0.55 mm for the second ring.

For crankshaft inspection, the same engine’s main-bearing clearance is listed as 0.031–0.067 mm. These examples accompany broader tables for bearing and bushing clearances, cylinder condition, valve and spring measurements, lubrication, thread repair and component-specific torque/angle requirements.