Question about Ford F-250
Hard starts rough idle and run until it warms up ,everyone said check ficm,i haven't yet. can these be related
DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage. Need to replace.
Posted on Nov 27, 2013
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Posted on Jan 02, 2017
SOURCE: Rough idle
Jeep has been having a problem with this. i take it u have a 4.7L or a 3.7L. when the when to fix this problem they should of replaced all the valves (intake and exhaust). theres a tsb on this and the dealer can look it up. even if you paid for the service they will fix it for free cuz it wasn't fixed the first time. take it back to the them and tell the to read the tsb and fix it right.
Posted on May 15, 2008
if it runs high when you first start it then mellows out,, theirs no problem , all of our chevys do that.... but if its sputtering or you hear a quiet popping noise check spark plugs
Posted on May 20, 2009
You can clean the EGR. No promise it will work. I have an idle problem on my `97 Grand Am Se. Shop told me I could clean it and it might solve my problem.
Just remove the EGR with the 2 bolts from the top of the manifold behind the throttle body if you have a 3.4 v6 like I do. Then leave it upside down with throttle body cleaner in it. Fill the EGR level with cleaner and let it soak for at least 30 min or more. Then reinstall.
This will remove any carbon on the inside which plugs the needle from pushing out at highway speeds. Hope this helps. If the problem returns in a week or so then replace with new EGR. New EGR is about $100-200! Cleaning seems to have helped my car did that about 3 weeks ago.
If you have a service engine light on turn the key to the run position on the ignition, pull the fuse to the ECM (batt) and disconnect the wire harness to the EGR. Reinstall it after a 1 min, That will clear all the codes in the ECM and reset everything.
Once you place the ECM fuse back in, start the car. It may stall but let it, DO NOT TOUCH ANY THING. The ECM need to relearn the EGR and engine from all it's sensors like the first time it was started. Just start it up again and it should be like the day it came off the assembly line and will relearn everything.
Good luck and just drive it like you always. If you decide to change the EGR valve, you still need to clear the ECM as mentioned above for the ECM to relearn the new EGR valve. Hope this helps and keep me posted.
Posted on May 25, 2009
SOURCE: rough idle then stalls
Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.
Posted on Nov 02, 2009
Testimonial: "Found the problem vacume leak like you said."
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