What are the most common GMC Savana problems?
According to Au7o's analysis of 780+ owner reports, the 2018 GMC Savana has 8 documented issues. The most frequently reported are: Fuel Pump Module Failure and Hard Start / Stalling, AFM Lifter Failure on V8 Vortec/EcoTec3 Engines, Cutaway Rear HVAC Blower Circuit Corrosion at Left B-Pillar - Fire Risk (Recall 23V-247). Of these, 3 are rated critical and should be addressed promptly.
Is the GMC Savana reliable?
The 2018 GMC Savana has 8 known issues documented across 780+ owner reports. 3 issues are rated critical: Fuel Pump Module Failure and Hard Start / Stalling and AFM Lifter Failure on V8 Vortec/EcoTec3 Engines and Cutaway Rear HVAC Blower Circuit Corrosion at Left B-Pillar - Fire Risk (Recall 23V-247). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common GMC Savana problems?
Repair costs for known GMC Savana issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Fuel Pump Module Failure and Hard Start / Stalling, typically costs $350-$900 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2003-2020 GMC Savana Fuel Pump Module Failure and Hard Start / Stalling?
The GMC Savana (and Chevrolet Express) fuel pump module is known for premature failure between 80,000-140,000 miles, often stranding drivers without warning. The in-tank electric fuel pump motor burns out or the sending unit becomes erratic. Running the tank consistently below 1/… Repairs typically run $350-$900. Severity: high.
What is the 2010-2025 GMC Savana AFM Lifter Failure on V8 Vortec/EcoTec3 Engines?
GMC Savana vans equipped with 4.8L (L20), 5.3L (LM7), and 6.0L (L96) V8 engines with Active Fuel Management suffer the same AFM lifter collapse problem documented across the entire GM full-size truck/van lineup. The collapsible AFM lifters on deactivation cylinders fail between 6… Repairs typically run $3,500-$8,000. Severity: high.
What is the 2003-2023 GMC Savana Cutaway Rear HVAC Blower Circuit Corrosion at Left B-Pillar - Fire Risk (Recall 23V-247)?
Savana Cutaway chassis are built with an unused wiring circuit at the lower left B-pillar so that a final-stage upfitter can install an optional rear HVAC blower. When the upfitter leaves that circuit's connectors or cut wire ends unsealed, moisture and road contamination corrode… Repairs typically run $0-$0. Severity: high.
What is the 1999-2020 GMC Savana Broken Exhaust Manifold Bolts on Gen III/IV Vortec V8 Causing Cold-Start Tick and Exhaust Leak?
On the 4.8L, 5.3L and 6.0L Vortec V8s the exhaust manifold bolts - almost always the ones at the extreme front and rear of each cylinder head - snap from repeated thermal cycling, letting the manifold lift off the head. The classic symptom is a loud tick or 'exhaust leak' ticking… Repairs typically run $600-$2,200. Severity: medium.
What is the 2010-2020 GMC Savana 6L90 Torque Converter Clutch Friction Wear Causing Driveline Shudder?
When the Savana 2500/3500 moved to the 6L90 six-speed for 2010, a new failure appeared that the old 4L80E did not have. GM's own service information for 2010-2014 Express and Savana vans with the 6.0L flex-fuel V8 and 6L90 acknowledges that torque converter clutch friction materi… Repairs typically run $900-$5,000. Severity: medium.
What is the 1996-2018 GMC Savana Rocker Panel, Lower Door and Wheel Arch Rust-Through?
Savana and Express bodies rot in a predictable pattern: rocker panels beneath the front and sliding doors, the bottoms of the doors themselves, the lower rear quarters at the wheel arches, and the lower skins of the side cargo and rear doors. The doors rust from the inside out -… Repairs typically run $400-$5,000. Severity: medium.
What is the 2017-2019 GMC Savana 2.8L Duramax LWN Diesel Emissions System Faults - DPF, DEF Heater and Fuel Filter Restriction?
The four-cylinder 2.8L Duramax (RPO LWN) was offered in the Savana and Express from the 2017 model year and brings a failure set unique to the diesel vans - nothing on the gasoline vans resembles it. Owners report DEF heater failures, incomplete or repeating DPF regeneration, EGR… Repairs typically run $120-$3,000. Severity: medium.
What is the 1996-2025 GMC Savana Rear Cargo Door and Side Door Hinge Wear?
The rear cargo doors and sliding side door hinges wear out from the weight of the doors and constant commercial use. Doors sag, become difficult to close, and the weatherstripping no longer seals properly. Repairs typically run $100-$400. Severity: low.
