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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   mdma pills for sale : WhatsApp +33758633852 ketamine, 4-MMC, MDPV, methylone, amphet...   Buy Nembutal Oral Solution Pentobarbital.. WhatsApp +33758633852 order nembutal online in Germany (WhatsA...   Drive Shaft Repair I have a 2015 Chevy Traverse AWD. The fr...   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...

Search Auto Parts Search 2001 Ford Taurus shows PO171&PO174 Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting Guest Anonymous Poster snoe2006@yahoo.com Jul 22, 2009, 2:30 AM Post #1 of 3 (3067 views) 2001 Ford Taurus shows PO171&PO174 Sign In Hi all, this is a 2001 Ford Taurus with overhead valve engine. I recently ran some fuel injector cleaner with fill up. The car runs really rough now stumbling and hesitating while idling. The two codes came up PO171&PO174. I took out Mass Airflow Sensor, cleaned it put it back in, and it is still stumbling. Does it just have to run its course or will I need to look further at something? Thank you for any help Hammer Time Ultimate Carjunky / Moderator Jul 22, 2009, 3:48 AM Post #2 of 3 (3064 views) Re: 2001 Ford Taurus shows PO171&PO174 Sign In I see the combination of those 2 codes on Fords quite often and it is almost always caused by a bad vacuum leak. Check all the rubber connectors at the manifold, especially the ones feeding the PCV line or brake booster. The rubber elbows tend to suck a hole in while running and close up when shut off so listen for a hissing noise and follow it. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. Guest Anonymous Poster snoe2006@yahoo.com Jul 22, 2009, 5:08 AM Post #3 of 3 (3059 views) Re: 2001 Ford Taurus shows PO171&PO174 Sign In Thank you for responding so quickly. Early, I did have the hood up and was able to hear the hissing and it came from a hole in the pcv hose. I replaced the hose and valve together and is running fine   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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