2018 Kia Sportage Timing Belt vs Timing Chain: How to Replace the Serpentine Belt
Step-by-step belt routing, tensioner release, tools/parts list, safety tips, and when to service the timing chain for 2017, 2018, 2019, 2020, 2021, 2022
2018 Kia Sportage Timing Belt vs Timing Chain: How to Replace the Serpentine Belt
Step-by-step belt routing, tensioner release, tools/parts list, safety tips, and when to service the timing chain for 2017, 2018, 2019, 2020, 2021, 2022
š§ Sportage - Timing Belt Replacement
Your Sportageās 2.0L turbo engine uses a timing chain, not a timing belt. That means there isnāt a scheduled ātiming belt replacementā to doāchains are designed to last much longer and are serviced only if thereās a problem (noise, timing codes, stretching, or guide/tensioner wear).
Before we go further: many people mean the serpentine/accessory drive belt (the belt that drives the alternator and A/C). Iāll show you how to confirm which one youāre trying to replace, and what to do next.
Difficulty Level: Intermediate (confirm/inspect) / Advanced (timing chain replacement) | Estimated Time: 0.5-1.0 hours (confirm/inspect) / 8-14 hours (timing chain job)
ā ļø Safety & Precautions
- ā ļø Work on a cool engine; turbo/exhaust parts can burn you.
- ā ļø Keep hands/clothes clear of belts and pulleys.
- ā ļø If lifting the front end, support with jack stands on solid ground.
- ā ļø For any timing chain work: incorrect cam/crank timing can cause severe engine damage.
- ā ļø Battery disconnect is recommended if youāll be near the starter/alternator wiring.
š§ Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Flashlight
- Floor jack (rated 3-ton minimum)
- Jack stands (rated 3-ton minimum)
- Wheel chocks
- Trim clip remover tool
- 3/8" drive ratchet
- 3/8" drive metric socket set (8mm-19mm)
- Serpentine belt tool (3/8" drive, specialty)
- Torque wrench (10-150 ft-lbs)
š© Required Parts
HowToo sells all the parts you need for this repair:
- Serpentine/accessory drive belt - Qty: 1
- Plastic underbody clips (assortment) - Qty: 1
- Timing chain kit (chain + guides + tensioner) - Qty: 1 (only if diagnosed bad)
- Front cover gasket/seal set - Qty: 1 (only if timing chain is serviced)
- Engine oil (correct grade for your Sportage) - Qty: 6 quarts (only if timing cover removed)
- Oil filter - Qty: 1 (only if timing cover removed)
- Engine coolant - Qty: 1-2 gallons (only if drained for timing cover access)
š Before You Begin
- Park on level ground, shift to Park, and set the parking brake.
- Chock the rear wheels using wheel chocks.
- If youāll be removing splash shields under the engine, raise the front with a floor jack and support with jack stands.
- If you plan to touch any alternator/starter power wiring, disconnect the battery negative cable (shop-safe habit).
šØ Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm what youāre trying to replace
- Open the hood and use a flashlight to look at the front/side of the engine.
- The visible belt on the outside is the serpentine/accessory belt (runs the alternator/A/C).
- The timing chain is inside the engine behind the front cover and is not visible without major disassembly.
Step 2: If you meant the serpentine/accessory belt, inspect it first
- Use a flashlight to look for cracks across the ribs, fraying on the edges, glazing (shiny/slippery look), or missing chunks.
- If the belt is damaged or squealing, replacement makes sense.
Step 3: Access the belt area (if needed)
- If access is tight from above, raise the front safely using a floor jack (rated 3-ton minimum) and set it on jack stands (rated 3-ton minimum).
- Remove any lower splash shield sections using a trim clip remover tool and a 3/8" drive ratchet with a 3/8" drive metric socket set (8mm-19mm).
Step 4: Release belt tension (serpentine belt)
- Fit a serpentine belt tool (3/8" drive, specialty) into the belt tensioner drive.
- Rotate the tensioner slowly to relieve tension, then slide the belt off one smooth pulley.
- Take a photo of belt routing.
Step 5: Remove and install the new serpentine belt
- Remove the old belt by hand once tension is released.
- Route the new belt exactly like your photo (ribbed side on ribbed pulleys).
- Use the serpentine belt tool (3/8" drive, specialty) to move the tensioner again and slip the belt onto the final pulley.
- Visually confirm the belt is fully seated in every pulley groove using a flashlight.
Step 6: Reinstall shields and torque fasteners
- Reinstall splash shields using the trim clip remover tool and 3/8" drive ratchet with the correct socket from your metric socket set (8mm-19mm).
- If any bolts were removed that specify a torque, tighten using a torque wrench (10-150 ft-lbs) to the spec for that fastener. Fastener torque varies by location.
Step 7: If you truly meant the timing chain (not the outer belt)
- Timing chain replacement on your Sportage is an Advanced job requiring special procedures for cam/crank timing and usually specialty holding/locking tools.
- Before planning chain replacement, confirm symptoms: rattling on cold start, check engine light, or timing-related codes.
- If you tell me your symptoms and any codes, I can guide the correct manufacturer-specific diagnostic path and whether chain service is justified.
ā After Repair
- Start the engine and let it idle while you watch the belt for smooth tracking.
- Listen for squeal, chirp, or slapping noises.
- Turn A/C on and off and verify the belt stays stable.
- Recheck that all splash shields and clips are secure after a short test drive.
š° DIY vs Shop Cost
Shop Cost: $150-$350 (serpentine belt) / $1,800-$3,500 (timing chain job)
DIY Cost: $35-$90 (serpentine belt parts only) / $400-$1,200 (timing chain parts + fluids)
You Save: $115-$260 (belt) / $1,000-$2,300 (chain) by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hours (belt) or 8-14 hours (timing chain).
šÆ Ready to get started?
Two quick questions so I give you the exact right walkthrough: (1) Did you mean the serpentine/accessory belt (outside belt), or were you told ātiming beltā by someone? (2) Whatās your mileage and do you have any symptoms or check-engine codes?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.


















