How to Fix Code 84 Fault in Buick Excelle?

1 Answers
IvanRose
07/29/25 5:27pm
It might be an issue with the throttle body or accelerator pedal. A computer scan is needed to determine the exact cause. It's recommended to visit a repair shop to read the fault codes with a diagnostic tool. The throttle body is a valve that controls the air intake into the engine, playing a crucial role in vehicle operation. It's advisable to replace it with a new one. Applying lubrication to the accelerator pedal or replacing it with a new one should resolve the issue.
Was this review help?
9
3
Share
More Forum Discussions

Which number is the vehicle license number?

The vehicle license number is the ID card number of the motor vehicle driving license holder. Process for reissuing a vehicle license: Currently, reissuing a vehicle license no longer requires providing vehicle photos. Only the owner's identity information is needed. After scanning and reading the owner's ID card, staff can complete online verification and review procedures for the owner's identity and vehicle information through the integrated service platform, eliminating the need to drive to the site for verification and photography. Precautions for reissuing a vehicle license: It should be noted that once the online application for reissuing or replacing a motor vehicle license is submitted successfully, it cannot be canceled. Reissuing a vehicle license does not require providing the original damaged motor vehicle license, while replacing a vehicle license requires submitting the original damaged license. Mailing involves round-trip delivery, and the cost is doubled.
6
5
Share

Are soundproof strips really effective?

Automotive soundproof sealing strips are not very effective. Functions of automotive sealing strips: Automotive sealing strips serve to fill various gaps and seams between vehicle body components. They provide functions such as vibration reduction, waterproofing, dustproofing, sound insulation, and decoration, enhancing driving comfort and protecting the vehicle body. Disadvantages of sealing strips: The soundproofing effect is not significant. After installing door sealing strips, they can easily become clogged, leading to poor door drainage. This may result in damage to the door window lift motor or rust on the door panel. After installation, the sealing strips can affect the overall appearance, making the doors more noticeable. If the sealing strips fall off, adhesive residue may remain on the car paint, which is difficult to remove.
6
4
Share

Is the 9005 bulb a dual-beam headlight?

The automotive 9005 bulb is not a dual-beam headlight; it is just an ordinary halogen bulb. Automotive bulb specifications: Common automotive bulb models include: H1, H4, H7, 9005, 9006. The method to distinguish automotive bulb models is to confirm whether the headlight is a dual-beam (high/low beam) unit. If it is, the bulb model is H4. Alternatively, you can open the hood, remove the headlight protective cover, take out the bulb, and identify it by the base and pins. Automotive headlights: Automotive headlights, also known as vehicle front lights or LED daytime running lights. As the 'eyes' of a car, they not only relate to the owner's external image but are also closely linked to safe driving at night or under poor weather conditions.
11
4
Share

How many points are deducted for stalling on a slope start?

Stalling once during a slope start deducts 10 points. The rules for the slope start in Subject 2 of the driving test are as follows: After starting the vehicle, if the vehicle rolls back 30 cm but not more than 50 cm, 20 points are deducted; if the vehicle rolls back 50 cm, the test is failed; if the vehicle is not started within 30 seconds, it is considered a timeout failure; stalling on the slope deducts 10 points. Slope start requires slow acceleration: During a slope start, when the left foot slowly releases the clutch pedal until the vehicle begins to vibrate, it should be slightly held in this position to confirm whether the vehicle has a forward tendency and power. Do not continue to lift the clutch pedal to prevent stalling. Slope start requires gradual throttle application: When the vehicle starts moving forward, the right hand should then completely release the handbrake and gradually apply throttle. When starting on a slope, if no throttle is applied, it is likely that the idle speed will be insufficient to move the vehicle on the slope, leading to stalling.
19
2
Share

Is it normal for the car's heater to only get hot when set to H1?

It is normal for the car's heater to only get hot when set to H1. Meaning of H1: Actually, "H1" on the air conditioning panel stands for "HI," which is the abbreviation of the English word "HIGH." When the heater is set to the HI position, the heating temperature reaches its maximum. Reason why it only gets hot at H1: It should be noted that since the heat for the car's heater is provided by the coolant, if the vehicle is in a cold state, the heating process will be much slower. Once the water temperature rises, it will return to normal. Solution: If the vehicle's water temperature is relatively low, the heating effect will also be much slower. Therefore, in winter, it is best to wait until the water temperature reaches around 90 degrees before turning on the heater. Otherwise, the vehicle's temperature will not rise, which can increase engine wear. When turning on the heater, there is no need to press the AC button, as doing so will only increase fuel consumption and will not help with heating at all.
9
2
Share

How much electricity does a parking diesel heater consume in one hour?

Parking diesel heater consumes 1.0 kWh of electricity in one hour. Calculation method: The electricity consumption of parking diesel heaters is mainly calculated based on power; generally, taking a 1000-watt parking diesel heater as an example, 1000 watts equals 1 kWh, so it consumes 1.0 kWh in one hour; the electricity consumption calculation formula is: 1 kilowatt × 1 hour = 1 kWh. Introduction to diesel heaters: The diesel heater in a car refers to the parking heater of the car. The indicator light flashing is due to issues with its control circuit, which can cause operational faults in the heater. In such cases, it is necessary to promptly send the car to a repair shop for inspection and maintenance. The diesel heater uses the car's battery and fuel tank to provide instant electricity and a small amount of fuel, and heats the engine's circulating water through the heat generated by burning gasoline, thereby enabling the engine to start hot and simultaneously warming up the cabin.
2
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.