Yup...not a problem. :)
On the O2 sensor for the Jeep, if it has over 65-70K miles on it....replace
it.
- Bernd
-----Original Message-----
From: Ray Irons [mailto:rayirons@sbcglobal.net]
Sent: Wednesday, February 20, 2008 11:01 AM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: RE: OT Question: 97 Jeep trouble code
--- "Bernd D. Ratsch" <bernd@dodgetrucks.org> wrote:
>
> Jeep issue: Check the vacuum hoses and caps at the manifold. Make
> sure there's no leaks/cracks in them. $35 water pump and an
> over-tensioned belt?
> Is this a 4.0L? On the code 51, once you cleared them PCM, you'll need
> to drive it for a while for the monitors to run. It's not a "instant
> on" code as it takes a while for the adaptives to learn. No, bumping
> the starter won't cause that code.
OK I checked all the vacuum hoses and they all appear to be in good shape
and nothing is leaking. I used a small plumbers torch to aim propane at all
the connections and caps and I didn't hear the RPM pick up any.
The engine in the Jeep is the 4.0L and the shop she had install the pump 2
years ago got the pump from Napa locally and they charged her over $60 for
the pump. When she asked about it, they told her the pump only had a 1 year
warranty. The pump I got at AZ is a lifetime warranty part so if it fails
again, I'll only be out the cost of some new anti-freeze plus my time to
swap it out.
I did some more research after I posted last night and from what I can tell
code 51 may be related to the pre-cat O2 sensor. If that O2 sensor is bad,
it could explain the PCM trying to correct a lean air/fuel mixture and cause
a rich smell at the exhaust as well.
I told my GF she needs to drive it for a while and if the check engine light
comes back on, I'll check it again and see if I get the same code. If I do,
I'll have to verify the code with a code reader and probably swap out the O2
sensor.
Thanks for the input Bernd, its great to have you as an asset to call on for
issues like this and I really appreciate you help and information.
> Dak issue: $450 labor charge is a bit low as book time is 6 hours
> (about $600 with average labor rate and shop charges included). Ask
> the shop if they'll install a "customer supplied" heater core and
> honor their labor warranty. Make sure you check the heater core
> before you give it to them though - fill it up with water and let it
> sit for a few hours - see if there are any leaks in it.
>
> - Bernd
>
I called 4 shops locally. 2 gave me a price around $600, one told me
$70/hour and however longs it takes.
The 4th gave me the price of $450. I even asked if that included purging and
re-charging the AC system and was told yes. I also asked them if they would
warranty their labor work if I supplied the part and they said yes to that
as well. Its a 90 day warranty on the labor but that should be enough to
know if its gonna be ok.
Thanks for the tip about filling the new core up and letting ti sit for a
few hours. I hadn't thought of that but it sounds like a reasonable
precaution given the amount of labor involved if it does leak after its
installed.
Thanks again Bernd!
Ray
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