2007 GMC Envoy

The 2007 GMC Envoy is a mid-size SUV that offers a blend of comfort and capability. Engine options include the 4.2L Inline-6 engine, producing 291 horsepower and 277 lb-ft of torque, and the 5.3L V8 engine, which produces 302 horsepower and 330 lb-ft of torque. The 4.2L was paired with a 4L60E 4-speed automatic transmission. The 5.3L was paired with a 4L70E 4-speed automatic transmission. People generally like the Envoy for its spacious interior, smooth ride, and towing capacity, especially with the V8 engine. Common dislikes include its fuel economy, and some reported reliability issues.

Engine

4.2L Inline-6

• Rough Idle/Misfires
  • Description/Symptoms: Engine idles rough, may experience misfires, and the check engine light may illuminate. Often caused by worn spark plugs, a faulty ignition coil, or vacuum leaks.
  • Solution: Replace spark plugs and ignition coils as needed. Inspect and repair any vacuum leaks.
  • Estimated Cost to Fix: $100 - $400+
  • Recalls: None Found
• Camshaft Actuator Failure
  • Description/Symptoms: Rattling noise from the engine, especially on start-up. Can lead to reduced engine performance and a check engine light.
  • Solution: Replace the camshaft actuator solenoid.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Leaks around the water pump or thermostat housing. Can cause overheating if not addressed.
  • Solution: Replace the water pump and/or thermostat housing, along with associated gaskets.
  • Estimated Cost to Fix: $300 - $700+
  • Recalls: None Found

5.3L V8

• Oil Consumption
  • Description/Symptoms: Excessive oil consumption, sometimes exceeding 1 quart every 1,000 miles. Can lead to fouled spark plugs and catalytic converter damage.
  • Solution: Replacement of valve stem seals or piston rings. In severe cases, engine replacement may be necessary.
  • Estimated Cost to Fix: $500 - $5000+
  • Recalls: None Found
• Faulty Oil Pressure Sensor
  • Description/Symptoms: Erratic or inaccurate oil pressure gauge readings. Can trigger a false low oil pressure warning.
  • Solution: Replace the oil pressure sensor.
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Exhaust Manifold Bolts Breaking
  • Description/Symptoms: Ticking noise from the engine, especially on cold starts. Caused by broken exhaust manifold bolts, leading to exhaust leaks.
  • Solution: Replace broken exhaust manifold bolts and associated gaskets. In some cases, the exhaust manifold may need to be replaced if warped or damaged.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Transmission

4L60E (paired with 4.2L Inline-6)

• Harsh Shifting/Slipping
  • Description/Symptoms: Hard or delayed shifts, slipping between gears, or failure to shift. Often caused by worn clutch packs, valve body issues, or low transmission fluid.
  • Solution: Perform a transmission fluid flush and filter change. If the problem persists, the transmission may need to be rebuilt or replaced.
  • Estimated Cost to Fix: $150 - $3000+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibrations at highway speeds. Can also cause stalling when coming to a stop.
  • Solution: Replace the torque converter. It is recommended to also flush the transmission fluid and replace the filter.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

4L70E (paired with 5.3L V8)

• Harsh Shifting/Slipping
  • Description/Symptoms: Hard or delayed shifts, slipping between gears, or failure to shift. Often caused by worn clutch packs, valve body issues, or low transmission fluid.
  • Solution: Perform a transmission fluid flush and filter change. If the problem persists, the transmission may need to be rebuilt or replaced.
  • Estimated Cost to Fix: $150 - $3000+
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibrations at highway speeds. Can also cause stalling when coming to a stop.
  • Solution: Replace the torque converter. It is recommended to also flush the transmission fluid and replace the filter.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure (if equipped)
  • Description/Symptoms: The rear of the vehicle sagging, air compressor not running, or “Service Ride Control” message appearing on the dashboard.
  • Solution: Replace the air suspension compressor. Check for leaks in the air lines and air springs.
  • Estimated Cost to Fix: $400 - $1200+
  • Recalls: None Found
• Air Suspension Air Spring Leaks (if equipped)
  • Description/Symptoms: The rear of the vehicle sagging overnight or after a period of time. Hissing sound from the air springs.
  • Solution: Replace the leaking air springs.
  • Estimated Cost to Fix: $300 - $800+ per air spring
  • Recalls: None Found
• Front Suspension Ball Joint Wear
  • Description/Symptoms: Clicking or popping noise from the front suspension when turning or going over bumps. Loose steering and uneven tire wear.
  • Solution: Replace worn ball joints. It’s often recommended to replace both upper and lower ball joints at the same time.
  • Estimated Cost to Fix: $200 - $600+ per side
  • Recalls: None Found

Electrical

• Instrument Panel Issues
  • Description/Symptoms: Gauges not working correctly, flickering lights on the instrument panel, or complete failure of the instrument panel.
  • Solution: Repair or replace the instrument panel.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found
• Door Lock Actuator Failure
  • Description/Symptoms: Door locks not working properly, either failing to lock or unlock.
  • Solution: Replace the faulty door lock actuator.
  • Estimated Cost to Fix: $150 - $400+ per door
  • Recalls: None Found
• Window Regulator Failure
  • Description/Symptoms: Window not going up or down, or making grinding noises when operated.
  • Solution: Replace the window regulator.
  • Estimated Cost to Fix: $200 - $500+ per door
  • Recalls: None Found

Exterior

• Rust on rocker panels and lower body panels
  • Description/Symptoms: Visible rust along the bottom of the vehicle, especially on the rocker panels and around the wheel wells.
  • Solution: Cut out the rust and weld in new metal panels, then paint to match the rest of the vehicle.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found
• Rear Liftgate Strut Failure
  • Description/Symptoms: The rear liftgate not staying open, or falling down unexpectedly.
  • Solution: Replace the liftgate struts.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Interior

• HVAC Blower Motor Resistor Failure
  • Description/Symptoms: The blower motor only working on certain speeds or not working at all.
  • Solution: Replace the blower motor resistor.
  • Estimated Cost to Fix: $50 - $200+
  • Recalls: None Found
• Seat Heater Failure
  • Description/Symptoms: The seat heaters not working or not getting hot.
  • Solution: Replace the seat heater element or control module.
  • Estimated Cost to Fix: $100 - $500+ per seat
  • Recalls: None Found

Summary

The 2007 GMC Envoy can be a reliable vehicle, but owners should be aware of potential issues, particularly with the engine, transmission, and suspension. The severity and cost of repairs vary, but some issues like engine oil consumption and air suspension problems can be costly to address. Regular maintenance and inspections are crucial to minimize potential problems. Some issues can be considered minor and affordable to fix, while others can be more major and have a higher repair bill. The 4.2L appears to have fewer issues in general when compared to the 5.3L.