2007 Pontiac Grand Prix
2007 Pontiac Grand Prix
The 2007 Pontiac Grand Prix was a midsize sedan offered with three engine options: a 3.8L V6 (200 hp and 225 lb-ft of torque), a 3.8L V6 with variable valve timing (224 hp and 245 lb-ft of torque), and a 5.3L V8 (303 hp and 323 lb-ft of torque). Transmission options included a four-speed automatic with the 3.8L V6 and a six-speed automatic with the 3.8L V6 with variable valve timing and the 5.3L V8.
The Grand Prix was praised for its comfortable ride, spacious interior, and strong V8 engine option. However, it was criticized for its poor fuel economy, bland styling, and outdated technology.
Engine
3.8L V6 Intake Manifold Gasket Failure Description/Symptoms: Coolant or oil leak from the intake manifold, rough idle, loss of power Solution: Replace the intake manifold gasket Estimated Cost to Fix: $500 - $800+ Recalls: None Found
Exhaust Manifold Leak Description/Symptoms: Loud exhaust noise, decreased fuel efficiency, engine overheating Solution: Replace the exhaust manifold Estimated Cost to Fix: $300 - $500+ Recalls: None Found
3.8L V6 with Variable Valve Timing Timing Chain Failure Description/Symptoms: Engine rattling noise, loss of power, check engine light Solution: Replace the timing chain and related components Estimated Cost to Fix: $1,200 - $1,800+ Recalls: None Found
5.3L V8 No Issues Found
Transmission
Four-Speed Automatic Transmission Slipping Description/Symptoms: Difficulty shifting gears, delayed engagement, loss of power Solution: Replace the transmission filter and fluid or rebuild the transmission Estimated Cost to Fix: $500 - $2,000+ Recalls: None Found
Six-Speed Automatic Torque Converter Shudder Description/Symptoms: Vibration during acceleration, especially when the transmission is cold Solution: Replace the torque converter Estimated Cost to Fix: $800 - $1,200+ Recalls: None Found
Suspension
Front Suspension Noise Description/Symptoms: Clunking or rattling noise from the front suspension Solution: Replace worn or damaged suspension components, such as ball joints, struts, or bushings Estimated Cost to Fix: $200 - $600+ Recalls: None Found
Rear Suspension Sag Description/Symptoms: The rear of the vehicle sits lower than the front, decreased handling stability Solution: Replace worn or damaged rear suspension components, such as springs or shocks Estimated Cost to Fix: $400 - $800+ Recalls: None Found
Electrical
Battery Drain Description/Symptoms: Battery drains overnight, difficulty starting the vehicle Solution: Test and replace the battery or alternator, check for electrical shorts Estimated Cost to Fix: $100 - $500+ Recalls: None Found
Headlight Failure Description/Symptoms: One or both headlights stop working Solution: Replace the headlight bulbs or check for electrical wiring issues Estimated Cost to Fix: $50 - $200+ Recalls: None Found
Exterior
Door Handle Failure Description/Symptoms: Door handle breaks or becomes loose, difficulty opening the door Solution: Replace the door handle assembly Estimated Cost to Fix: $100 - $200+ Recalls: None Found
Trunk Lid Leak Description/Symptoms: Water leaks into the trunk from around the trunk lid Solution: Replace or adjust the trunk lid weatherstripping Estimated Cost to Fix: $50 - $150+ Recalls: None Found
Interior
Broken Climate Control Buttons Description/Symptoms: Climate control buttons become stuck or inoperable Solution: Replace the climate control panel Estimated Cost to Fix: $200 - $400+ Recalls: None Found
Electric Window Switch Failure Description/Symptoms: Electric window switch stops working, window becomes inoperable Solution: Replace the electric window switch Estimated Cost to Fix: $100 - $200+ Recalls: None Found
Summary
The 2007 Pontiac Grand Prix has a moderate number of reported issues, but most are relatively minor and inexpensive to repair. The most significant issue is the timing chain failure on the 3.8L V6 with variable valve timing engine, which can be costly to fix. Other issues include transmission problems, suspension noise, and electrical issues. Overall, the Grand Prix is a reliable vehicle, but it is important to be aware of these potential issues before purchasing one.