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A check engine light for the GM P0128 code means that the fuel system is running too lean. Find out how to fix it in this article! 1. Year. 2. Make. 3. Model. 4. Trim. 5. Fuel Type. ... Popular Engine Codes P0420 P0172 P00171 P0128 P0300 P0456 P0430 P0442 P0455 P0113. Fixed It But The Check Engine Light Is Still On? Check engine light …When the GMC Sierra’s computer detects that the EVAP systemic not holding any pressure, it will throw the P0442 code. GMC Sierra P0442 Causes. There are many things that can cause the P0442 trouble code on the GMC Sierra. The most common problem is far and away the first one listed below.It's a 15-minute job at a cost of ~ $35 for the part at Rock Auto. But here's the thing: With *my* 3.0L 2011 Equinox, I first got a P0442 code (very small EVAP Leak Detected). Cleared it a few times, but it kept coming back. So then I tried Vaseline on the gas cap seal a few times to see if that made any difference.Labor: 1.0. The cost to diagnose the P0449 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto …The GM Repair Manual lists the 5 common causes of setting a P0442 DTC. 1. Leaking gas cap 2. Leaking or disconnected EVAP system lines 3. Leaking …One oxygen sensor, which is referred to as the upstream sensor, sits between the engine and converter.There’s also a downstream oxygen sensor that evaluates the O2 levels coming out of the converter. Higher levels of oxygen in the exhaust tell the computer that the engine is burning a lean fuel-air mix.Dec 2, 2012 · I have a 2012 Terrain SLE with about 21k miles. The SES light has come on seven times since July. Incidences are as follows: 7,500 miles - OnStar states emissions not working as expected, light went out after about 8 days 15,036 miles - OnStar gave P0442 code, dealer replaced purge solenoid... In this video, I will give you a brief overview on how to diagnose a P0016 and P0017 Cam position Correlation codes.This Chevy Malibu ended up needed the Tim...Today we remove and test an EVAP charcoal canister. The canister is designed to hold hydrocarbons from the fuel system when the vehicle is not running. Under...I had the check engine light come on and pop up the code P0496. I read if you replaced the vapor canister valve could correct the problem. So I changed out ...1. Leaking gas cap 2. Leaking or disconnected EVAP system lines 3. Leaking charcoal canister 4. Leaking purge or vent valves 5. Leaking, cracked, fuel tank, or faulty fuel tank pressure sensor 2014 Equinox LTZ FWD 3.6L. V-6 (LFX) GM6T70 Transmission-Gen II (M7W) Crystal Red Tintcoat-Brownstone Leather- (FE2) Suspension-18" WheelsFunctionOverForm. 682 posts · Joined 2017. #2 · Sep 2, 2017. Aruas said: The other day the check engine light lit up, pulled the codes and I got p0442 (small evap leak) and p0496 (high purge flow ) on my 2015 chevy Colorado LT 4wd 3.6 64k miles. Kind of bumped since it's relative new. Did a smoke test and couldn't find any leaks.GMC Terrain P0496 Causes. There are many things that can cause the P0496 trouble code on the GMC Terrain. Here are the most common problems that will throw the code. Vapor Canister Purge Valve– The most common culprit with the P0496 trouble code and the GMC Terrain is going to be the vapor canister purge valve. When it goes bad, it typically ...My 2012 Chevy Equinox 2.4L has had intermittent P0442 codes (small evaporative leak) since it was new. I usually just cleared the code because they only happened every few months and it always seemed like the problem was solved once I tighten the gas cap. Prior to my 36,000 mile warranty expiring I replaced the gas cap and it looked like it ...One oxygen sensor, which is referred to as the upstream sensor, sits between the engine and converter.There’s also a downstream oxygen sensor that evaluates the O2 levels coming out of the converter. Higher levels of oxygen in the exhaust tell the computer that the engine is burning a lean fuel-air mix.For that reason, the P0446 code will sometimes be a sign that an electrical failure has been detected with either the control circuit or the vent valve, which may result in any number of codes ...P0442 2012 gmc terrain - GMC Cars & Trucks Posted by Anonymous on Nov 06, 2013 Add Your Answer Sep 20, 2010 • 2009 GMC Envoy Not finding what you are looking for? …Check the hoses and pipes for leaks. Inspect The P0496 code indicates that there’s an incorrect amoun My 2012 Chevy Equinox 2.4L has had intermittent P0442 codes (small evaporative leak) since it was new. I usually just cleared the code because they only happened every few months and it always seemed like the problem was solved once I tighten the gas cap. Prior to my 36,000 mile warranty expiring I replaced the gas cap and it looked like it ...928 satisfied customers. I have a 2012 GMC Terrain that needs the transmission. Hi, I have a 2012 GMC Terrain that needs the transmission replaced. It is 2.4L front wheel drive. I can get one from a 2010 2.4L FWD Terrain. I realize … read more. If you are in the market for a reliable and spacious SUV GMC AcadiaGMC Terrain Involved Region or Country North America Condition Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this EI. Some customers may note a Check Engine Light related to the evaporative emission canister performance. Technicians may find the following DTCs set: • P0442 • P0455 ...Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/77/ai/air-flow-meterA failure with the mass airflow sensor can be the cause of many engine, emissions,... GMC Acadia 2017 2018 Terrain 2018 Involved Region or

What Does the P0420 Code Mean? Diagnostic trouble code (DTC) P0420 stands for “P0420 Catalyst System Efficiency Below Threshold (Bank 1).”. It indicates that the exhaust system’s oxygen levels are below the required threshold in Bank 1, which can damage the engine’s exhaust and fuel system.If your GMC Envoy has the P0442 OBD II code, you should first check the fuel cap. If it’s missing or broken, replace it. If the fuel cap seems ok, you must check the EVAP system for a leak. One of the most common issues that happens with the GMC Envoy is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner ...Dec 20, 2022 · The evaporative emission control system (EVAP) prevents the escaping of gasoline vapors from the fuel system into the atmosphere. It redirects the vapors to a charcoal canister and then to an engine intake manifold. ECM checks the valves’ tightness and system pressure, and if the 0.2-0.4 inches leakage is detected, you can see the P0442 code. The P0172 DTC means that the car’s computer has determined that the fuel system is running too rich. The alert was set off on Bank 1. A rich-running system means that there’s either too much fuel or a lack of oxygen in the air-fuel mixture. Bank 1 indicates it’s located on the side that contains the #1 cylinder.

History: A while back my Check Engine Light (CEL) on my Equinox (2011 3.0 V-6 FWD) came on and code P0442 (small leak evap system) was indicated. The vehicle remote start was inoperative. Since that is a pretty insignificant code (and I was pretty busy) I decided to clear the code, reset the...Dec 2, 2012 · I have a 2012 Terrain SLE with about 21k miles. The SES light has come on seven times since July. Incidences are as follows: 7,500 miles - OnStar states emissions not working as expected, light went out after about 8 days 15,036 miles - OnStar gave P0442 code, dealer replaced purge solenoid... …

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Jul 19, 2014 · P0442 code is a small leak . Possible cause: May 23, 2021 · The P0442 trouble code is related to the Evaporative (EVAP) .