Pontiac Grand Prix 1999 Owner's Manual

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Year 1999

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Pontiac Grand Prix 1999 Specification

The 1999 Pontiac Grand Prix is a mid-size automobile renowned for its blend of performance, comfort, and style. It features two primary engine options: a 3.1-liter V6 engine that produces 160 horsepower and a more powerful 3.8-liter V6 engine capable of generating 200 horsepower. Both engines are mated to a 4-speed automatic transmission, ensuring smooth and efficient power delivery.

The car's exterior dimensions include a length of 196.5 inches, a width of 72.7 inches, and a height of 54.7 inches, with a wheelbase measuring 110.5 inches. This model offers a spacious interior, accommodating up to five passengers, with front and rear legroom of 42.4 inches and 36.2 inches, respectively. The trunk space is ample, providing 16 cubic feet of storage capacity.

Safety features on the 1999 Pontiac Grand Prix include dual front airbags, anti-lock brakes (ABS), and daytime running lights. Additionally, the vehicle is equipped with traction control and an optional heads-up display to enhance driver awareness and control.

The suspension system comprises an independent front strut and a rear multi-link design, contributing to a balanced and comfortable ride. The braking system includes front disc brakes and rear drum brakes, with an option for rear disc brakes on higher trims.

Fuel efficiency is a notable aspect, with the 3.1-liter engine achieving approximately 20 miles per gallon (mpg) in the city and 30 mpg on the highway, while the 3.8-liter engine delivers around 19 mpg in the city and 29 mpg on the highway.

The 1999 Pontiac Grand Prix also boasts a range of convenience features such as power windows and locks, air conditioning, cruise control, and an AM/FM stereo with a CD player. Optional upgrades include leather seats, a premium sound system, and a power sunroof, allowing for a more luxurious driving experience.

Pontiac Grand Prix 1999 F.A.Q.

How do I reset the "Check Engine" light on a 1999 Pontiac Grand Prix?

To reset the "Check Engine" light, you can disconnect the car battery for about 15 minutes. This will reset the vehicle's computer system. Ensure that you have any necessary radio codes before disconnecting the battery.

What type of oil should I use for a 1999 Pontiac Grand Prix?

The recommended oil for a 1999 Pontiac Grand Prix is 5W-30. For optimal performance, use high-quality synthetic or conventional oil.

How can I troubleshoot overheating issues in my 1999 Pontiac Grand Prix?

First, check for coolant levels and leaks. Examine the radiator for blockages and ensure the radiator fan is operational. If the problem persists, inspect the thermostat and water pump for faults.

What is the procedure for changing the spark plugs on a 1999 Pontiac Grand Prix?

Start by removing the engine cover, then disconnect the spark plug wires. Use a spark plug socket and wrench to remove the old plugs. Install new plugs by threading them by hand before tightening with a wrench. Reconnect the spark plug wires.

How do I replace the headlight bulb on a 1999 Pontiac Grand Prix?

Open the hood and locate the back of the headlight assembly. Remove the cover and disconnect the electrical connector. Take out the old bulb and replace it with a new one, ensuring it is securely fitted. Reconnect the electrical connector and replace the cover.

What are common issues with the transmission in a 1999 Pontiac Grand Prix?

Common issues include slipping gears, delayed shifting, and transmission fluid leaks. Regular maintenance and fluid checks can help mitigate these problems. If issues persist, consult a professional mechanic.

How can I improve fuel efficiency in my 1999 Pontiac Grand Prix?

To improve fuel efficiency, maintain regular service intervals, keep tires properly inflated, use the recommended grade of motor oil, and avoid excessive idling and rapid acceleration.

What is the recommended maintenance schedule for a 1999 Pontiac Grand Prix?

Perform oil changes every 3,000 to 5,000 miles, check the transmission fluid every 30,000 miles, and replace the timing belt every 60,000 miles. Regularly inspect brakes, tires, and suspension components.

How do I fix a leaking sunroof on a 1999 Pontiac Grand Prix?

Check the sunroof drains for blockages and clean them if necessary. Ensure the sunroof seal is intact and replace it if worn. If the problem continues, the sunroof alignment may need adjusting by a professional.

How can I diagnose electrical problems in a 1999 Pontiac Grand Prix?

Start by checking the battery and fuses. Use a multimeter to test for continuity and voltage drops in circuits. Inspect wiring for corrosion or damage. Consult a wiring diagram for troubleshooting specific issues.