1.5L DOHC DI VVT Engine Complete Assembly for 2018-2022 Chevrolet & GMC
Product Notes Read before buying
This is a 1.5L turbocharged 4-cylinder engine (RPO code LYX). It fits All-Wheel Drive (AWD) vehicles only. Before ordering, please verify your vehicle has the 1.5L engine with the 8th digit of the VIN as 'V'. This engine assembly does not include the turbocharger, which will need to be transferred from your original engine.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| 2018 - 2022 |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| AT4 | SUV | 2022 | L4 1.5L Turbo | AWD | Automatic | Hollander: TERRAIN 18-20 1.5L (VIN V, 8th digit, opt LYX), AWD | TERRAIN 21-22 (1.5L, VIN V, 8th digit, opt LYX), AWD; engine_size: include 1.5L; engine_config: include L4; aspiration: include Turbocharged; fuel_type: include GAS; drive_type: include AWD; engine_code: include LYX; vin_8: include V [inferred] |
| 2018 - 2021 |
Know This Engine Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this engine family:
A quick look at your own vehicle makes sure the right engine shows up:
- Confirm the 8th digit of your vehicle's VIN is V.
- Confirm your vehicle is AWD (look for AWD badge, rear driveshaft, or AWD button on center console).
- Check the RPO codes on the SPID label for LYX (engine) and F48 (AWD).
- Inspect your existing turbocharger for shaft play or oil leaks to ensure it is safe to transfer.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Camshaft holding/alignment tool (GM EN-51367)
- Fuel injector remover/installer tool (GM EN-51146)
- High-pressure fuel line quick-disconnect tools
- GM-compatible diagnostic scan tool (MDI 2 with GDS2 software)
- Smoke machine (GE-52250)
Budget for these consumables at install:
- 5.3 quarts (5.0 liters) of dexos1 Gen 2 or Gen 3 approved SAE 0W-20 or 5W-30 full synthetic oil
- ACDelco PF64 oil filter (or equivalent)
- GM-approved Dex-Cool (50/50 pre-mix)
- New OEM iridium spark plugs (pre-gapped)
- Intake manifold gasket
- Exhaust manifold gasket
- High-pressure fuel pump O-ring
- New GM high-pressure fuel line (one-time-use crush-seal design)
- Vacuum pump seal/gasket
- Thermostat housing gasket
- Front and rear crankshaft seals
- Turbocharger gaskets
What your vehicle’s computers will need after the swap:
What’s involved: Crankshaft Position (CKP) System Variation Relearn, Immobilizer/Security Relearn, ECM/PCM Programming
A GM-compatible professional scan tool (such as GDS2) is required to perform the CKP relearn. The engine will not run correctly and may throw misfire codes until this is completed. Security re-sync and ECM calibration updates are also highly recommended.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- AWD Transfer Case (PTU) Alignment: Must carefully align and bolt the PTU to the structural upper aluminum oil pan to prevent spline damage or severe vibrations.
- High-Pressure Fuel Pipe One-Time Use: Reusing this line is a major fire hazard because the crush-seal will not seal properly a second time.
- Vacuum Pump Inspection: If original engine failed due to a seized vacuum pump, inspect the exhaust camshaft on the replacement engine and install a brand-new vacuum pump.
- Crankshaft Position (CKP) Relearn: Skipping this will trigger immediate misfire codes and poor running.
- Torque-to-Yield (TTY) Bolts: Harmonic balancer, flywheel/flexplate, and camshaft sprocket bolts are TTY and must be replaced.
- PCV System Brittleness: Plastic tubes and connectors can become brittle and break easily during swap.
- Charge Air Cooler (CAC) Inspection: Inspect inside the CAC and piping for pooled oil or moisture and clean thoroughly before startup.
Easy to get right once you know them:
- Ordering AWD Engine for a FWD Vehicle: The AWD engine has a different structural upper oil pan with mounting points for the transfer case and holds more oil.
- Reusing the High-Pressure Fuel Pipe: Leads to fuel leaks directly over the hot engine, causing fires.
- Failing to Inspect/Replace the Vacuum Pump: Bolting on a failing vacuum pump can immediately destroy the replacement engine's camshaft.
- Not Performing the CKP Relearn: Buyers often think the engine is bad because it throws misfire codes immediately after install.
- Using the Wrong Oil: Using non-dexos oil or wrong viscosity can accelerate vacuum pump wear and trigger LSPI, cracking the pistons.
- Ignoring the Turbocharger Transfer: Damaging oil/coolant lines or failing to use new gaskets during transfer leads to leaks and turbo failure.
- Not Checking the Start/Stop Accumulator Bolts: Failing to verify these bolts can lead to dangerous transmission fluid leaks.
Not issues with the units on this page — the manufacturer documented these for every engine of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Inspect the exhaust camshaft on the replacement engine and install a brand-new vacuum pump. Do not reuse a worn or contaminated vacuum pump.
🔎 Recommended at install: Mandatory use of dexos1 certified full synthetic oil (0W-20 or 5W-30) to help prevent this condition.
🔎 Recommended at install: Clean or replace PCV components to prevent high crankcase pressure from blowing out crankshaft oil seals.
🔎 Recommended at install: GM remedies include a winter grille cover, lower shutter retrofit, and an ECM software update.
🔎 Recommended at install: Dealers install an improved retainer clip to secure the duct to the throttle body.
🔎 Recommended at install: Replace cracked or leaking high-pressure fuel pumps.
🔎 Recommended at install: Verify the bolts on the transmission's start/stop accumulator are present and torqued correctly during installation.
🔎 Recommended at install: Perform a decarbonizing procedure as outlined in GM guidelines.
🔎 Recommended at install: Inspect and replace spark plugs if ceramic failure is present.
Researched from factory recalls, TSBs and OEM service data (reference unit 300-10220-5591231). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2018-2022 Equinox & Terrain 1.5L Turbo LYX AWD: Problems, Identification, and Used Replacement
Identify the 1.5L LYX AWD engine, understand what causes catastrophic failures, and learn when to replace it with a reliable used OEM unit.
Read Full Guide →Related Trouble Codes (OBD-II)
14 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
GM: 12681060, 12683447
Fits Years: 2018 2019 2020 2021 2022
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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