2000 Explorer DTC P0171

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Caruso50 - 18 Oct 2006 23:21 GMT

Check Engine Light is on. Checked code and get P0171 and P0174 as a
pending code.

System too lean Bank 1 and Bank 2 pending. Service manual does not detail
riching the system up.

Symptom is that when cold, starts okay but chugs down to kill shortly. If
you jockey it a while and stabilizes, it's okay and idles perfectly with no
future problems until it is cold again.

Any help?

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Jim Warman - 19 Oct 2006 01:35 GMT

Sounds like the classic intake gasket problem.... the gaskets will leak when
cold and seal better aas the engine warmsa...

> Check Engine Light is on. Checked code and get P0171 and P0174 as a
> pending code.
[quoted text clipped - 8 lines]
>
> Any help?

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CanusLupus - 19 Oct 2006 14:10 GMT

I had similar problem in my '99 explorer sport.Check engine light on
and this weird behavior when engine was cold, after about 1 minute it
was normal again. I took it to the mechanic and I ended up spending
~$700 to repair this thing. The third cylinder wasn't working right,
that caused unstable work of whole engine. Now it's fine again.
I'm not sure if this is the same situation, but if Check Engine light
is on I prefer not to take a risk... but it's just me.

~~~~~
Rgds
Pawel

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