Do you hear a "rattling" sound when driving while the truck is cold?
One characteristic of a bad cat, (by no means the only one) is that it
will rattle until it warms up. Sure sounds like a bad cat still
though.
Rascal
On Sun, Feb 15, 2009 at 6:12 PM, Bernd D. Ratsch <bernd@dodgetrucks.org> wrote:
>
> Yup...sounds like a cat to me too. How much exhaust flow is coming out of
> the tailpipe when the engine stalls and restarts?
>
> - Bernd
>
> -----Original Message-----
> From: Rick Barnes [mailto:rsb7424@gmail.com]
> Sent: Sunday, February 15, 2009 5:26 PM
> To: dakota-truck@dakota-truck.net
> Subject: Re: DML: 1998 Dak loses power while driving
>
>
> is the engine shutting off or just gradually losing power...if it just
> loses power, could be a clogged cat.
>
> Rascal
>
> On Sun, Feb 15, 2009 at 3:59 PM, Geoffrey Hausheer
> <dakota1998@phracturedblue.com> wrote:
>>
>> I haven't been on this list for about 10 years, but it's interesting I
>> still see many of the same names here as back then. Recently my 1998
>> 5.2L 4x4 started acting up, and I thought I'd see if anyone here had
>> any ideas. I saw the recent thread on 'Shut Downs' which sounds
>> similar to my issue, though not necessarily the same.
>>
>> When driving, my truck will occasionally lose power completely. As in
>> Jamie's case, it feels like the engine just turned off. If I'm
>> moving, then I can get it going my downshifting (just pushing in the
>> clutch and releasing it won't do it). If I'm stopped, turning the key
>> off then starting the engine again will resolve it. The gauges
>> continue to work normally, and no lights flash or anything. Radio and
>> lights work fine even while the engine is in this 'off' state, and
>> there's no noticable flickering or glitches when it happens.
>>
>> It doesn't normally trigger a code, though I've gotten a few every
>> once in a while.
>>
>> The last set I pulled were:
>> P0505 IACS
>> P0351 ICAP/SC
>> P0113 IATS1CHI
>> (though this was after I accidentally left the dome light on for a
>> week which killed my battery, and they could be related to that). My
>> intake air sensor is also not in the air-stream, and frequently
>> triggers a code, so the P0113 is likely not related)
>>
>>
>> I also get failing $06 Codes:
>> $11 O2S11SWCT Value = 12.0 (Min 56.0)
>> $15 CAT11PRC Value = 0.0 (Min 3.0)
>>
>> As I said, I don't get codes every time the engine stalls like this.
>> At the moment, I can't go more than ~20mins without this happening,
>> which has made the truck too unreliable for me to drive it much.
>>
>> I'm not sure it's related, but for the past several years, I've had a
>> very rare issue where I'd get the same issue when accelerating, but
>> simply taking my foot off the gas would be sufficient to get the
>> engine going again, but the current issue happens much more
>> frequently, and is significantly more annoying to deal with.
>>
>> If it is a loose wire/bad connection, it'll be extremely frustrating
>> to find, so I thought I'd see what other sensors could trigger this
>> condition.
>> I don't think a bad TPS would cause this condition, but what about a
>> bad MAP sensor?
>> The service manual is next to useless for debugging these issues; is
>> the power-train manual more helpful?
>>
>> Thanks,
>> .Geoff
>>
>>
>
>
>
>
This archive was generated by hypermail 2b29 : Sun Mar 01 2009 - 00:29:23 EST