A burning power steering fluid smell from your 2022 GMC Terrain indicates fluid is leaking onto hot engine or exhaust components. Power steering fluid has a distinctive acrid, petroleum-based smell when heated, and identifying the leak source is essential for proper repair.
GMC Terrain Power Steering System
The 2022 Terrain uses electric power steering (EPS) on most models, which doesn't have traditional hydraulic fluid. However, some configurations or if you have an older style, may use hydraulic assist. First, verify your vehicle has a hydraulic power steering system with fluid before assuming a power steering leak.
Hydraulic Power Steering Leak Sources
If your Terrain has hydraulic power steering, common leak points include high-pressure hose connections at the pump and rack, power steering pump shaft seal, steering rack seals at the tie rod ends, return line connections, and the power steering fluid reservoir. Leaks drip onto exhaust components and burn.
Identifying Power Steering Fluid
Power steering fluid is typically red or light brown, with an oily consistency and distinctive petroleum smell. When it contacts hot exhaust or engine components, it produces acrid burning smell different from engine oil. Look for red-tinted fluid under the vehicle or on steering components.
Electric Power Steering Considerations
If your Terrain has EPS, the burning smell isn't from power steering fluid. Investigate other sources: engine oil, transmission fluid, or brake fluid leaks. EPS motors can overheat if failing, creating electrical burning smell, but this is different from fluid burning.
Diagnostic and Repair Approach
Verify your steering system type first. For hydraulic systems, check fluid level and inspect pump, hoses, and rack for leaks. Clean the area and identify where fresh fluid appears. Repair involves replacing failed seals, hoses, or components. Low fluid from leaks can cause steering pump whine and eventual failure.