Why does the Buick Regal not respond when stepping on the accelerator?

[ElisaDella]

Buick Regal not responding when stepping on the accelerator may be due to insufficient fuel. Here is some relevant information about Buick: Logo: The Buick logo consists of three shields of different colors arranged diagonally within a circle, representing three models from Buick's 1960 lineup—Electra, Lesabre, and Invicta. Buick vehicles are known for their high horsepower, individuality, practicality, and maturity. Family Crest: The Buick family crest features a red shield with a pattern of silver and azure Go-like stripes running from the top left to the bottom right. In the top right corner of the shield is a deer head with antlers, and in the bottom right corner is a golden cross with a circular hole in the center, matching the red shield's color. The three shields symbolize the car's quality being as solid as three shields.

[LeilaRose]

I just repaired a Buick Regal with the same issue at the shop last week. Lack of power when stepping on the accelerator is most commonly caused by a faulty throttle position sensor. This component detects how deep you press the accelerator pedal, and if it's broken, it can't send the correct signal. A dirty throttle body can also cause this problem - carbon buildup blocking the intake will directly choke the power output. Also, if you feel the engine revs but the car doesn't move, it's likely a transmission issue, with common problems being valve body blockage or torque converter slippage. Short circuits in the electronic throttle system wiring or ECU failure can also cause sudden power loss. Oh, and don't overlook the possibility of insufficient fuel pump pressure - if the fuel system can't deliver enough fuel, you naturally can't accelerate. When encountering this situation, try turning the engine off and restarting first. If that doesn't work, go to a professional shop immediately to read the trouble codes. The Regal's electronic systems are quite complex - don't try to tinker with it yourself.

[DelCharlie]

I've been driving the Regal for ten years and have encountered several instances where the throttle didn't respond. Focus on checking three key areas: Is the throttle body dirty? Excessive carbon buildup affects air intake, especially noticeable after prolonged city driving. Next is the electronic throttle pedal—the position sensor underneath is particularly delicate and prone to failure, causing signal interruptions. Also, check the fuel filter; if it hasn't been replaced for a long time, clogged fuel lines can prevent acceleration. Additionally, if sudden acceleration doesn't work, avoid stomping on the pedal—check if the brake light switch is stuck, as this car has a brake override system that cuts fuel supply. If you can't fix it yourself, head to the dealership for a computer diagnostic. Last time, I solved the issue by replacing the throttle position sensor, which cost over 800 including labor.

[CourtneyFitz]

Last time I drove my dad's Buick Regal on the highway, I experienced a sluggish throttle response. The mechanic said there could be several reasons: the fuel pump might be failing, causing insufficient fuel supply, or the fuel injectors could be clogged, affecting atomization; aging ignition coils leading to cylinder misfires; the most troublesome being a faulty transmission control module directly limiting power output. He also taught me an emergency fix—turn off the engine, lock the car, and wait five minutes for the computer to reboot, as sometimes electronic glitches might resolve this way. Oh, and a dirty air filter can also suffocate the engine—remember to replace it every 20,000 kilometers.