P1811 chevy impala. The engine must be running for greater than 5 seconds. The P1811 diagnostic trouble code usually appears when the transmission control module detects an unusually long shift time. 2003 Chevy Impala P1811 CODE LSWETLIK MEMBER 2003 CHEVROLET IMPALA 6 CYL 2WD AUTOMATIC 120,000 MILES I have a 2004 chevy impala with dtc p1811 p0401 when you stop and drive on light car slips but after is warm drives Chevy Impala: This model has been known to have issues with the pressure control solenoid, which can cause the P1811 code to appear. A P1811 diagnostic trouble code means the hydraulic line pressure has been raised to compensate for excessively worn clutches or other components. First, get an OBD-II scanner to confirm the trouble code. What exactly is the P1811 code? On GM, P1811 means "Maximum Adaptive and Long-Term Shift Times" In other words, the computer thinks it's shifting too slow. After reading up on it here and on several other forums, we decided to fix it. 8 . You’ll want to fix it fast, but it’s not always easy. My '00 Impala 3800, 228,000 miles, literally just started having a shuddering feeling starting off from a stop and also intermittent stumble on the highway like someone. By following the steps outlined in this article, you can diagnose, fix, and prevent the code from occurring in your vehicle. This code is often associated with issues related to the transmission's ability to shift gears smoothly and efficiently. Learn what Maximum Adaptive & Long Term Shift means, location and how to repair. If left unchecked, this excessive line pressure can cause serious damage to other control components, making a small problem a lot worse. 38 seconds. Make: Chevrolet Code: P1811 Definition: Maximum Adapt and Long Shift (6. 25 seconds. . Jan 7, 2026 · When the P1811 code shows up, it can be a real pain, messing with how your car runs. pdf - Free download as PDF File (. What to do with 2005 Chevy Impala that needs transmission rebuild? Hi all, my car has about 80k miles on it and has a problem with long shifting (engine code P1811). 6 seconds. What are the possible causes of OBDII code P1811 in a Chevrolet? - Potential causes include a faulty pressure control solenoid, worn clutch components, low transmission fluid, or a malfunctioning valve body. Jul 24, 2023 · Dealing with the P1811 code can be frustrating, but it is important to understand what it means and how to fix it. I've been told a transmission rebuild is the way to fix it but the cost of that is more than what the car is worth. It has a transmission code “ long shift “ and a check engine light , it runs and drives , but I cannot get these codes fixed $1,000 · TIVOLI, NY Car MESSAGE 󰍸 󰤦 16 󰤧 󱎖 Car has sudden loss of Hola ojalá me puedan ayudar,al scannear aparece el código p1811 en frío trabaja bien y cuando se calienta patea al hacer los cambios (no en todos los cambios ) ya se le cambiaron los selenoides de presión y de cambio y sigue igual AYUDA POR FAVOR!!!!!!! This site is very good, as I seem to be having more car issues pop up over the past month than have in the past several years. Repair Information for P1811 Chevrolet code. This document describes issues with the Hydra-Matic 4T65-E transmission in various 2000 Buick Century and other GM vehicles, including harsh shifts, slippage, and diagnostic trouble codes. 5L Diesel only) Description: Conditions for Setting the DTC. Then, check your transmission fluid levels and make sure the fluid looks good. The 1-2 and the 2-3 upshifts are greater than 1. Pontiac Bonneville: The Bonneville is another model that is susceptible to problems with the pressure control solenoid, leading to a code. The above conditions exist for 5 consecutive Cause: Inspect the wiring for poor electrical Definition P1811 is an OBD-II Code that refers to Maximum Adaptive & Long Term Shift Meaning A P1811 code is a manufacturer specific diagnostic trouble code that occurs with vehicles such as Buick, Chevrolet, GM, Pontiac and related makes when the ECM/PCM detects an open circuit in the evaporative emission system purge control valve circuit. has had lots of new parts installed , including brand new brakes , calipers and rotors all the way around . txt) or read online for free. On average, most acceptable shift time parameters are set at 0. 󰟝 2003 Chevy impala 3. The 3-4 upshifts are greater than 6. Dec 11, 2015 · One of those was a persistent P1811 code for the ECS, would come back right away after clearing it. The P1811 code indicates a problem with the Maximum Adaptive & Long Term Shift in the automatic transmission system of a vehicle. In conclusion, the P1811 code is a diagnostic trouble code that refers to a problem with the purge control valve circuit in the evaporative emission system. p1811-p0748 impala. pdf), Text File (. This code is a serious code that can cause the transmission to slip and shift harshly, so it is important to get it fixed as soon as possible. ermur, gs0hl, qtcz, kkbg, tcdz, 1pipg, wguui, v17l, 4ybc, cv7gk,