Q: 1999 Ford Explorer. If it has a crimp type clamp, you'll have to throw it away and replace it with a screw or spring type hose clamp because the crimpies aren't reusable. Nächstes Video EGR valve cleaning WITHOUT DISMANTLING - Cleaner kit test Before/After - Dauer: 7:34 TutoBuild Eng 2.472.338 Aufrufe 7:34 Code P0401 Egr Flow insufficient Fixed ! - Dauer: 2:26 The Die Bewertungsfunktion ist nach Ausleihen des Videos verfügbar. Source
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The EGR sensor, whether it's a DPFE sensor, EGR temperature sensor or EGR boost sensor need to be checked too. pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. How can I tell if my EGR valve is bad? Other cars may have an electric solenoid- or electric step motor-operated EGR valve (see the example).
You might find a hose with a hole in it or you could find a connector that is not seated all the way or some wiring that has been rubbed through.This The sensor signal voltage should change when the vacuum is applied. Wird geladen... Fault Code P0401 Egr Flow Insufficient But on th...3 answersApril 08, 2010Low EGRCode P0401 Insufficient EGR Flow.
Read more how the EGR system works below. Did you mean ? The EGR valve needs to tested.
It's a good idea to disconnect any part of the EGR system that appears easily serviceable and clean it thoroughly.
Home For Used Car Buyers How to choose the 'right' car Reviews of popular used cars Best fuel efficient used cars Used car buying guide Illustrated used car checklist P0401 Egr Flow Insufficient Toyota Camry But there's at least a 50% chance you've solved your problem without spending any cash at all! How the EGR system flow is controlled: The flow of EGR gases is controlled by the EGR valve. If you want to share this article or information with others, please link to this page, don't copy and paste it elsewhere. © 2004-2016 OBD-Codes.com Menu Home TroubleshootingTroubleshooting BasicsRepair ManualsOBD CodesOBD
Your EGR valve has a large vacuum hose connected to it, so disconnect that hose first using the hose clamp. Wird geladen... Code P0401 Egr Flow Insufficient This article describes the repair procedure. - A faulty VSV (Vacuum Switching Valve) for the EGR can also cause the code P0401 in older Toyota Corolla. Ford Egr Code P0401 The engine control module determines proper EGR flow in many ways: Temperature increase in the EGR passages when the EGR is supposed to be flowing Measurable amount of Manifold Pressure change
What they mean » Oxygen sensor: How it works » Mass airflow sensor: How it works » Buying a used car How to buy a used car step by step How If you find the blockage, all EGR passages need to be cleaned. Either the computer cannot control the EGR, possibly a defective vacuum switching valve, or a vacuum hose is split or somehow leaking vacuum, or the valve is working but the computer Diese Funktion ist zurzeit nicht verfügbar. Fixing Egr Code P0401
It is not intended as repair advice and we are not responsible for any actions you take on any vehicle. A: Check the vacuum hoses at the VSV valve, check and clean the filter in the EGR vacuum modulator, check the EGR valve and passages for blockage, see if the vacuum Push the wiring safely out of the way then proceed to the dirty part. have a peek here Symptoms You may notice drivability problems such as pinging (a.k.a.
If the engine stumbles or dies then you know the EGR is capable of working. P0401 Egr A Flow Insufficient Detected Hope this video helps... Check Engine light problems Check Engine light trouble codes Glossary of automotive terms More » Used Car Reviews Toyota Corolla 2009-2013 Mitsubishi Lancer 2008-2013 Chrysler PT Cruiser 2001-2010 BMW 3-series 2006-2011
CommentsHave your say about what you just read! Wird verarbeitet... If you want to take it to a mechanic, have the diagnostic done at the dealer; they know common problems and have the latest repair information. P0401 Egr Valve Port Cleaning Wird verarbeitet...
If you still need help regarding the P0401 trouble code, please post your question in our FREE car repair forums. The main purpose of the EGR system is to reduce the amount of the nitrogen oxides (NOx) in the exhaust emission. About Today About Autos Auto Repair You might also enjoy: Living Healthy Health Tip of the Day Sign up There was an error. Check This Out Your OBD-II Trouble Codes Repair Site Home Trouble Codes FAQs Forums Store Search Close P0401 OBD-II Trouble Code Technical Description Insufficient EGR Flow What does that mean?
Replacing the EGR valve with an updated part often solves the problem. What are the symptoms on your vehicle for the P0401 Ford code? The EGR ports in the throttle body clog up very often too. Not all vehicles are equipped with an EGR system; many newer cars utilize a variable valve timing and other means to control the NOx emissions.
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