DRB-III can check it out....but doubt that the PCM went south (haven't seen
too many 2.5L PCM's go bad). What exactly is the truck doing (or not doing
properly)? Also, check the basics first: engine tune, vacuum leaks,
corroded or gunked up sensor connections, etc.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Wilbur
Sent: Tuesday, January 13, 2004 6:09 PM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: Re: DML: replacing timing chain on 1998 dakota 2.5 liter
Hmmm...makes me wonder somewhat then if my computer (PCM) has gone
south....are there any quick tests for that? I guess I always thought
if the PCM was dead...it wouldn't run at all...Again, thanks for the
information and suggestions. Have a good evening!
Wilbur
Wilbur wrote:
>
> Thanks guys....Lots of great info here. I will put forth more
> research
> before buying any parts...Btw, any preference for timing parts if I do
> decide to replace them? Should I go Mopar or can what I get from
> Autozone or a similar place be as good?
>
> Wilbur
>
>
> Bernd D. Ratsch wrote:
>
>>
>> There's really no accurate way to check the timing on the Magnum
>> engines with conventional tools. Even a scanner will fluctuate on
>> ignition timing. The '89 was still in the era where you could check
>> timing...but not anymore.
>>
>> - Bernd
>>
>> -----Original Message-----
>> From: owner-dakota-truck@bent.twistedbits.net
>> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of
>> david.clement@verizon.net
>> Sent: Tuesday, January 13, 2004 6:57 AM
>> To: dakota-truck-moderator@bent.twistedbits.net
>> Subject: Re: DML: replacing timing chain on 1998 dakota 2.5 liter
>>
>>
>>
>> In article <btvts8$emh$1@bent.twistedbits.net>,
>> bwgreen@ocean.otr.usm.edu
>> (Wilbur) writes:
>>
>>>
>>> Hiya Ken,
>>>
>>> Thanks for replying. :) I got out the trusty timing light and
>>> checked it again....I couldn't remember if it had been jumping all
>>> over or not and yes, it was bouncing all over....further evidence of
>>> timing chain going bad...
>>
>>
>>
>> You can't check the timing like that on new computer controlled
>> vehicle, the
>> jumping is as likely to be the computer doing it's thing. I am not
>> sure of
>> the procedure for your engine but my 89 Dakota and other DC products I
>> have
>> you had to pull the plug on the to the temp sensor while the engine is
>> runing to put the system into limp home mode. That is the only way you
>> can
>> determine the base timing setting.
>>
>> Do not use those results as a basis for changing the timing chain.
>>
>> Dave Clement
>> 99 SLT+ CC 4x4
>
>
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