Last post on Nov 05, 2013 at 4:27 PM
You are in the Ford Freestar
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Ford Freestar, Mercury Monterey, Van
#897 of 922 Re: 2004 Mercury Monterey with code PO401 [veepee1]
Apr 11, 2010 (11:31 am)
I had the same OBD code on my 2004 Mercury Monterey. I replaced the EGR valve, at a cost of less than $50. I am no mechanic, but it took me less than 30 minutes to replace. It has been about a month, and the engine light has not come one again since the EGR valve was replaced.
#898 of 922 Re 2004 Mercury Monterey jerking under load
Jun 21, 2010 (8:08 pm)
My 2004 Monterey with 82k has recently began jerking or bucking when moving off, or under load travelling up to 40- 45mph. It runs smoothly when cruising. I changed the gas filter recently as I suspect that it could be fuel related, but it made no difference. It also idles a bit irregular. Does anyone have an idea or suggestion as what possible could be causing this problem, or what to check for. Your input will be appreciated.
#899 of 922 Re: 2004 Mercury Monterey with code PO401 [steve1977]
Aug 29, 2010 (3:33 pm)
Where did you find the EGR for $50? I have been searching and I can't find one that cheap, I would love to though. Can you send me the link. Thanks
#900 of 922 Re: 2004 Mercury Monterey with code PO401 [mks21701]
Sep 17, 2010 (8:49 pm)
#901 of 922 Re: Re 2004 Mercury Monterey jerking under load [veepee1]
Nov 05, 2010 (7:35 am)
I've got the same problem. I did have the P401 code flash. Found the part on amazon using the motorcraft pn from rockauto. cheap about $75. That didn't fully fix the issue but I've noticed that since it has gotten colder it doesn't happen as much but still does. Any progress? Has anyone had this issue and a transaxle change fixed the problem?
#902 of 922 Re: Re 2004 Mercury Monterey jerking under load [mike_ga]
Nov 05, 2010 (11:05 am)
I should have been clearer on my problem. i have the same issue with my van jerking at 45 mph under load in 4th gear at low rpms before upshifting.
I also have the driver seat heated seats not working. I see both problems in these posts. Has anyone actually fixed either?
#903 of 922 Occasional jerk under load or starting off
Nov 15, 2010 (9:49 am)
Had the same problem.....replaced the EGR valve, replaced the coil and wires and spark plugs, no real difference.
I now believe that moisture got into the PCM connector and once it dried out, the problem went away...see this link for a detailed description (its a pdf doc.)
#904 of 922 Re: 2004 Mercury Monterey Transaxle Problem [Don43701]
May 03, 2011 (10:44 am)
I agree, we need to get together and fight Ford. The problem is I'm in Canada so we don't have the same laws...
#905 of 922 Re: Re 2004 Mercury Monterey jerking under load [mike_ga]
Jul 25, 2011 (6:50 am)
I had the same problem. It would jerk at around 45 mph. I took it in, and there was a cracked vacuum hose plastic part thing, and they replaced a coil head and spark plugs. it all came to around $1200 with labor at a Ford dealership. Since I know nothing about cars, I had to pay it. It did make the jerking go away.
I just feel the van isn't running smooth. The idle sound is so loud, like a truck.
My driver side heated seat also died. When under warranty. They "couldn't" fix it, or so they said.
I'm at 91000, and I hope to be able to drive a few more years. I'm still paying on it! blech!
#906 of 922 Re: 2004 Mercury Monterey 86k, P0301, P0316
Sep 18, 2011 (5:43 pm)
I am experiencing similar problems, Jerking under load at about 40mph. The CIL came on after. Diagnosis revealed the above codes. What is the easiest way to get to the No. 1 cyl. and what could be the possible cause for a misfire.