2.4 with gasoline straight-4 2.4 L 137 HP engine (2002.8–)
14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m
Flywheel
95.88–103.26 lbf⋅ft95.88–103.26 lbf⋅ft130–140 N⋅m
Screws must be replaced.
expand_moreMain bearing
2.5 CRDi with diesel straight-4 2.5 L 138 HP engine (2002.8–)
95.88–103.26 lbf⋅ft95.88–103.26 lbf⋅ft130–140 N⋅m
expand_moreEngine control
Balance shaft toothed belt tension pulley
11.06–14.75 lbf⋅ft11.06–14.75 lbf⋅ft15–20 N⋅m
Camshaft drive belt deflection pulley
36.88–44.25 lbf⋅ft36.88–44.25 lbf⋅ft50–60 N⋅m
expand_moreCamshaft timing chain guide rail
2.5 CRDi with diesel straight-4 2.5 L 138 HP engine (2002.8–)
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Camshaft timing chain slip rail
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Camshaft timing chain tensioner
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
expand_moreCamshaft timing chain tensioning rail
2.5 CRDi with diesel straight-4 2.5 L 138 HP engine (2002.8–)
14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m
Camshaft timing gear
70.07–88.51 lbf⋅ft70.07–88.51 lbf⋅ft95–120 N⋅m
expand_moreControl drive chain guide rail
expand_more2.5 CRDi with diesel straight-4 2.5 L 138 HP engine (2002.8–)
expand_moreHigh-pressure pump timing chain
Top screws
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Bottom screws
14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m
Oil pump timing chain
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
expand_moreControl drive chain tensioner
High-pressure pump timing chain
14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m
Oil pump timing chain
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
expand_moreControl drive chain tensioning rail
High-pressure pump timing chain
14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m
Drive belt tensioner device
14.75–22.13 lbf⋅ft14.75–22.13 lbf⋅ft20–30 N⋅m
Inlet camshaft wheel
47.94–55.32 lbf⋅ft47.94–55.32 lbf⋅ft65–75 N⋅m
Oil pump drive chain tensioner
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Outlet camshaft wheel
47.94–55.32 lbf⋅ft47.94–55.32 lbf⋅ft65–75 N⋅m
Toothed belt guard
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Toothed belt tensioning roller
33.19–40.57 lbf⋅ft33.19–40.57 lbf⋅ft45–55 N⋅m
expand_moreEngine lubrication
Oil cooler
13.28–18.44 lbf⋅ft13.28–18.44 lbf⋅ft18–25 N⋅m
Oil drain plug
25.81–33.19 lbf⋅ft25.81–33.19 lbf⋅ft35–45 N⋅m
expand_moreOil filter housing
2.5 CRDi with diesel straight-4 2.5 L 138 HP engine (2002.8–)
16.23–18.44 lbf⋅ft16.23–18.44 lbf⋅ft22–25 N⋅m
Oil pump chain wheel
14.75–16.23 lbf⋅ft14.75–16.23 lbf⋅ft20–22 N⋅m
Oil sump
7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m
Gradually tighten screws crosswise.
expand_moreEngine management
Glow plugs
11.06–14.75 lbf⋅ft11.06–14.75 lbf⋅ft15–20 N⋅m
Knock sensor
11.8–17.7 lbf⋅ft11.8–17.7 lbf⋅ft16–24 N⋅m
Lambda sensor
36.88–44.25 lbf⋅ft36.88–44.25 lbf⋅ft50–60 N⋅m
expand_moreExhaust system
expand_moreExhaust manifold
2.5 CRDi with diesel straight-4 2.5 L 138 HP engine (2002.8–)
14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
Exhaust manifold heat shield
11.06–14.75 lbf⋅ft11.06–14.75 lbf⋅ft15–20 N⋅m
Exhaust pipe
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
expand_moreIgnition system
Spark plugs
16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
expand_moreStart system
Starter
36.88–47.94 lbf⋅ft36.88–47.94 lbf⋅ft50–65 N⋅m
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 Kia Sorento user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and Kia warranty policy for your region. In some regions DIY service may invalidate your warranty.
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Kia Sorento service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 2003 Kia Sorento you're not only saving money, but also also improving your technical skills and learning something new.
