"Check Engine Light" on, but no DTC.
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"Check Engine Light" on, but no DTC.

 
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Alex
Guest
Posted: Thu Nov 11, 2004 6:55 pm    Post subject: "Check Engine Light" on, but no DTC. Reply with quote
It's on my 1999 Ford Windstar. I just cleared the codes (I think they
are P13171 and P13174), but "Check Engine Light" won't go away as
previous occassions. It runs fine.

Has any one encountered this problem?

Alex.

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johanb
Guest
Posted: Thu Nov 11, 2004 8:12 pm    Post subject: Re: "Check Engine Light" on, but no DTC. Reply with quote
Do you mean p0171 and p0174 ?

Means you probably have a vacuum leak at the upper intake manifold
You can get updated gaskets and bolts for that.
there is also a PCM update that takes care of little leaks from the lower
intake runners

good luck

Johan

"Alex" <almei2@yahoo.com> wrote in message
news:a6a966bf.0411110555.7a960468@posting.google.com...
Quote:
It's on my 1999 Ford Windstar. I just cleared the codes (I think they
are P13171 and P13174), but "Check Engine Light" won't go away as
previous occassions. It runs fine.

Has any one encountered this problem?

Alex.
Back to top
Alex
Guest
Posted: Sat Nov 13, 2004 7:48 pm    Post subject: Re: "Check Engine Light" on, but no DTC. Reply with quote
Thanks, Johan,

You are right. DTC's are P0171 and P0174. Thanks for the hints.

Yesterday, I checked DTC's again and same codes plus P0741 showed up.
This time, light was gone when I cleared the codes. Don't know why it
didn't work last time.

From DTC descriptions, it seems P0741 is much more serious. Any
suggestion on course of action?

Alex.

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Swanny
Guest
Posted: Sun Nov 14, 2004 8:53 am    Post subject: Re: "Check Engine Light" on, but no DTC. Reply with quote
You'll probably find the answers at this site
http://www.obd-codes.com

"Alex" <almei2@yahoo.com> wrote in message
news:a6a966bf.0411110555.7a960468@posting.google.com...
Quote:
It's on my 1999 Ford Windstar. I just cleared the codes (I think they
are P13171 and P13174), but "Check Engine Light" won't go away as
previous occassions. It runs fine.

Has any one encountered this problem?

Alex.
Back to top
 
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