2007 GMC Acadia

The 2007 GMC Acadia was a full-size crossover SUV, marking GMC’s entry into this popular segment. All 2007 Acadias came equipped with a 3.6L V6 engine that produced around 275 horsepower and 251 lb-ft of torque. This engine was paired exclusively with a 6-speed automatic transmission. Owners generally liked the Acadia’s spacious interior, comfortable ride, and relatively good fuel economy for its size. Common complaints included issues with the timing chain, transmission problems, and some electrical glitches.

Engine

3.6L V6

• Timing Chain Wear/Failure
  • Description/Symptoms: The timing chain can stretch or wear prematurely, leading to a check engine light, rough running, and eventually engine damage if not addressed. Noisy operation, particularly on startup, is also a common symptom.
  • Solution: Replacement of the timing chain, guides, and tensioners.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• High Pressure Fuel Pump (HPFP) Failure
  • Description/Symptoms: The HPFP has been known to fail. This is more prevalent in GDI engines.
  • Solution: Replacement of the HPFP.
  • Estimated Cost to Fix: $500 - $1000
  • Recalls: None Found

Transmission

6-Speed Automatic (Hydra-Matic 6T70)

• Wave Plate Failure (3-5-R Wave Plate)
  • Description/Symptoms: The 3-5-R wave plate inside the transmission is prone to cracking or breaking, leading to loss of 3rd and 5th gear, harsh shifting, and eventually transmission failure.
  • Solution: Transmission rebuild or replacement, including the installation of an updated wave plate.
  • Estimated Cost to Fix: $2,500 - $4,500+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering during shifting, poor acceleration, and transmission slipping
  • Solution: Torque converter replacement, transmission flush and inspection of debris in the transmission.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found

Suspension

• Rear Suspension Issues
  • Description/Symptoms: Excessive rear sagging, unstable ride, and unusual tire wear.
  • Solution: Replacement of worn shocks, struts, or springs. Air ride suspension (if equipped) can have leaks and require replacement of the air struts or compressor.
  • Estimated Cost to Fix: $300 - $1,500+ depending on components replaced.
  • Recalls: None Found

Electrical

• Power Steering Failure/Loss of Assist
  • Description/Symptoms: Intermittent or complete loss of power steering, making the vehicle difficult to steer, especially at low speeds.
  • Solution: Replacement of the power steering pump, high pressure power steering hose, or repair of electrical connections related to the power steering system.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found
• Door Lock Actuator Failure
  • Description/Symptoms: The door locks start to become intermittent and sometimes completely fail, leaving the door stuck closed.
  • Solution: Door lock actuator replacement
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Exterior

• Liftgate Strut Failure
  • Description/Symptoms: The liftgate won’t stay open on its own and slowly falls down
  • Solution: Liftgate strut replacement.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Interior

• HVAC Actuator Failure
  • Description/Symptoms: Clicking noises behind the dashboard, inconsistent temperature control, and failure of vents to direct air properly.
  • Solution: Replacement of the faulty HVAC actuator.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Summary

The 2007 GMC Acadia, while offering a spacious and comfortable ride, is prone to several notable issues. The most concerning are related to the timing chain and transmission, which can lead to significant repair costs. Electrical problems and suspension issues are also common. The severity of these issues ranges from minor inconveniences to major mechanical failures. Potential buyers should carefully inspect the vehicle’s service history, listen for unusual noises, and consider a pre-purchase inspection by a qualified mechanic. The cost to repair these issues can range from a few hundred dollars for minor fixes to several thousand for major engine or transmission repairs.