2007 Cadillac SRX

The 2007 Cadillac SRX is a mid-size luxury crossover SUV that offered a blend of comfort, style, and performance. It came with three engine options: a 3.6L V6 producing 255 horsepower and 254 lb-ft of torque, a 4.6L Northstar V8 producing 320 horsepower and 315 lb-ft of torque, and a 4.4L Supercharged Northstar V8 producing 469 horsepower and 439 lb-ft of torque. Transmission options included a 5-speed automatic for the V6 and a 6-speed automatic for the V8s. Owners often praised the SRX for its smooth ride, spacious interior, and attractive styling. Common complaints included issues with the complicated electronics, higher-than-average repair costs, and somewhat lackluster fuel economy, especially with the V8 engines.

Engine

3.6L V6

• Timing Chain Wear
  • Description/Symptoms: Engine rattle, especially on startup; check engine light with codes related to camshaft or crankshaft position correlation. Can lead to engine misfires and eventually engine damage if not addressed.
  • Solution: Replacement of timing chains, tensioners, and guides.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found

4.6L Northstar V8

• Oil Leaks
  • Description/Symptoms: Oil leaks from various points including valve cover gaskets, rear main seal, and oil pan gasket. Visible oil drips under the vehicle and a burning oil smell are common.
  • Solution: Replacement of the leaking gaskets or seals.
  • Estimated Cost to Fix: $200 - $1,000+ depending on the location of the leak.
  • Recalls: None Found
• Head Bolt Thread Repair
  • Description/Symptoms: Overheating, coolant loss, and white smoke from the exhaust, indicating a blown head gasket. The Northstar V8 is known for its tendency to strip the head bolt threads in the aluminum engine block.
  • Solution: Time Sert or similar thread repair kit installation to repair the damaged threads. Head gasket replacement is also required.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found

4.4L Supercharged Northstar V8

• Supercharger Failure
  • Description/Symptoms: Reduced power, whining or grinding noises from the supercharger, and potential for engine damage if debris enters the engine.
  • Solution: Supercharger rebuild or replacement.
  • Estimated Cost to Fix: $2,000 - $5,000+
  • Recalls: None Found

Transmission

5-Speed Automatic (Paired with 3.6L V6)

• Torque Converter Failure
  • Description/Symptoms: Shuddering during acceleration, especially at lower speeds, and potential for stalling. Can trigger transmission-related fault codes.
  • Solution: Torque converter replacement.
  • Estimated Cost to Fix: $800 - $1,500
  • Recalls: None Found

6-Speed Automatic (Paired with V8 Engines)

• Hard Shifting
  • Description/Symptoms: Harsh or delayed shifts between gears, particularly when cold.
  • Solution: Transmission fluid flush and filter replacement. If the issue persists, valve body inspection and repair or replacement may be necessary.
  • Estimated Cost to Fix: $200 (flush) - $1,500+ (valve body)
  • Recalls: None Found

Suspension

• Rear Air Suspension Compressor Failure (if equipped)
  • Description/Symptoms: Sagging rear suspension, especially after parking overnight. The compressor may run constantly or not at all.
  • Solution: Replacement of the air suspension compressor. In some cases, air struts may also need replacement if they are leaking.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Electrical

• Navigation/Infotainment System Issues
  • Description/Symptoms: Freezing, slow response, and inability to read discs.
  • Solution: Replacement or repair of the head unit.
  • Estimated Cost to Fix: $200 (repair) - $1,000+ (replacement)
  • Recalls: None Found
• Stabilitrak/ABS Issues
  • Description/Symptoms: Stabilitrak warning lights, ABS warning lights, reduced engine power, and/or erratic braking.
  • Solution: Diagnosis with a scan tool to identify the faulty sensor or module. Common culprits include wheel speed sensors, steering angle sensor, and the EBCM (Electronic Brake Control Module).
  • Estimated Cost to Fix: $100 - $1,000+ depending on the component.
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: Sunroof will not open, close, or seal properly. Leaking, excessive wind noise, or grinding noises while operating.
  • Solution: Replacement of seals, recalibration, or replacement of the sunroof assembly.
  • Estimated Cost to Fix: $150 - $1,500+ depending on severity of issue.
  • Recalls: None Found

Interior

• Heater Blend Door Actuator Failure
  • Description/Symptoms: Inability to control the temperature of the air blowing from the vents. One side may blow hot while the other blows cold. Clicking noises behind the dashboard.
  • Solution: Replacement of the faulty blend door actuator.
  • Estimated Cost to Fix: $200 - $500+ due to the labor involved in accessing the actuator.
  • Recalls: None Found

Summary: The 2007 Cadillac SRX, while offering a luxurious driving experience, is prone to several issues. The engine problems, particularly with the Northstar V8s (oil leaks and head bolt issues), can be quite costly to repair. Electrical gremlins, such as those affecting the infotainment and Stabilitrak systems, are also common complaints. While some issues, like blend door actuator failure, are relatively inexpensive to fix, others, such as timing chain replacement or supercharger repairs, can be significant financial burdens. Potential buyers should carefully inspect the vehicle’s service history and consider a pre-purchase inspection by a qualified mechanic. The severity ranges from minor electrical glitches to major engine overhauls, with repair costs potentially ranging from a few hundred to several thousand dollars, making thorough due diligence essential.