Question about 2003 Ford Focus
The car has 57,000 miles on it
Egr valve probly has a hidden vacuum leak--the issue is usually internal or the gasket where it connects to exhaust--a dirty throttle body may also be case--get car scanned at a partsplace
Posted on Nov 06, 2012
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Posted on Jan 02, 2017
SOURCE: stalls when put into gear
Its possible it could be other things causing the problem, but seeing as you've checked most of the likely causes, it is most likely your Torque-Converter. The lockup clutch in your Stator-Fan located inside the Torque-Converter could be siezed, causing the car to stall.
Posted on May 16, 2008
SOURCE: ford focus keeps stalling
I suspect it is a problem with the evaporative emission system. Basically, it collects vapors from the fuel tank and stores them in a charcoal canister in the engine compartment. It thens purges them into the engine when the engine is warm and running at road speed. You may be dumping too much vapor because your canister is filling with fule as well as vapor.
Do you try to "nurse" teh tank full at the fuel station? If yes, you may be flooding the canister.
Try just filling it 3/4 each time & see if problem goes away.
Posted on Feb 21, 2009
SOURCE: 2001 ford focus zx3 stalling
It could be a lot of things, check the gas cap, vacuum leak, IAC, may need a tune-up ( check plugs, wires, air filter), seizing pulley, timing issue (check CKP sensor and CMP sensor), sticking valves, misfire, Fuel line pressure, or an issue with CAT or muffler.Good luck.
Posted on Jun 03, 2009
the idle air control valve is responsible for engine idle.
this is a common failure on ford's. but I don't think yours is bad because it does idle high befor it dies.
you stated you had codes p0171 and p0174 these are lean codes for bank one and two, you said you found a vacuum leak and repaired it, the vacuum leak was mostly likely the cause of the lean codes, however the pcm has calibrated the fueling stategy for this lean mixture, what you need to do is erase the KAM "keep alive memory" this is done by unhooking the negative battery cable for 60 seconds, this is the only way to erase the KAM the $6000.00 machine I use wont even do it.
once the KAM is clean the computer will go into a relearn state and all operating values will be adjusted for the vehicles current condition, during this relearn session the vehicle may have some driveability issues (low or high idle, stalling, poor fuel economy) the relearn should complete within 10 minutes of idling and then 10 minutes of driving.
good luck and keep me updated
Posted on Jun 14, 2009
System Too Lean (Bank 1) Symptoms include stalling at idle, rough idle, poor MPG, loss of power, high pitch sucking sound from the engine bay. This is typically caused by a vacuum leak. The most common cause is a hole in the elbow at the PCV valve. It may be hard to see so you'll want to pull it out to check it. Also look at the elbow that connects the PCV hose to the intake manifold. It can get a hole there as well. This is 90% caused by a vacuum leak and not the O2 sensor. Most people (ignorant ones) will just say it is the sensor because it set the code. That code is a good sensor reporting a lean condition. Just replacing the sensor without checking for other problems first would be like replacing an entire wire harness when a light goes out instead of checking the bulb and fuse first. Other causes can be a bad sensor, bad MAF, low fuel pressure, or an exhaust leak. To fix the elbows on the PCV valve you can pick up new ones from the HELP section of the local part store. The part numbers for the elbows from the Help section are:
The one that goes on the intake manifold fits the nipple on the manifold snugly. But, it doesn't fit snug on the line so you'll need to use a clamp on that part. The one on the PCV valve is a very tight fit at both ends. If you don't want to bother trying to rig this up, you can purchase a new line from Ford. The part number is: F8CZ-6853-CA.
Posted on Mar 05, 2010
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