Question about Ford Focus
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Posted on Jan 02, 2017
SOURCE: 2002 ford focus p0401
Here is a list of possible causes for a PO401, hope this helps.
Posted on Feb 10, 2009
The EGR, or exhaust gas recirculation valve, takes inert exhaust gasses
drawn from the exhaust system and reintroduces them into the combustion
chamber through the intake manifold. This process lowers the peak
combustion temperature and helps combat the formation of Nitrous Oxide
(NOx) in the exhaust.
Posted on Sep 07, 2009
Here's a picture to locate it..
So, when looking at the engine from above, on the right of the exhaust.
Procedure to replace it
1) Lift and support the front end of your car, or drive up on ramps
2) Get under the front of your car. The PCV Valve is located behind the exhaust manifold, a few inches below the valve cover.
3) Push up on the PCV valve to pop it out of the tube, or pull. You can get it out of the rubber tube with some effort.
4) Remove the rubber elbow from the top of the PCV valve. This can be re-used if it's not squishy. It can also be replaced cheaply.
5) Put the elbow on the new PCV Valve
6) Re-attach the elbow to the PCV tube
7) Push the new PCV valve back down into the large rubber tube
Posted on Sep 25, 2009
SOURCE: EGR VALVE ON 96 FORD PROBE SE
If it's a 2.0L, 5 speed (1994-7) there are two DPFE solenoids (both w/ 3 vacuum ports) near the oil filter, which control the EGR valve. They are discontinued and impossible to find except on junked cars. (FORD #'s K5T44093-4)
I have to junk my 1996 Probe if I don't find them - Missouri emissions.
Posted on Mar 03, 2010
1st of all when Ford started out with putting "EGR's" on those diesel engines, they rushed it and are nothing less than a pain in the ***! i recommend having an EGR cleaning service performed by your local Ford dealer, i know they charge up the wazoo, but they're the best people to perform the service period.this is a VERY common problem with those engines and that service is "supposed" to be performed every 30K I believe. i dont recommend attempting to remove and service it youself, this WILL only make it worse.
Posted on Mar 26, 2010
Testimonial: "Im relieved to here that someone else is thinking the same thing. Im still going to try it myself as i am somewhat skilled at this but Thanks a bunch!"
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