On small item to add to this:
When I had modified the intake manifold on my Dak, the Coolant Temp Sensor
(by the T'Stat housing) was removed, cleaned, and reinstalled. I noticed
that the wires weren't seated properly within the plastic clip that holds
them and had to reseat them (they were barely in there). I found this out
with a check engine light glaring me in the face. May there is some
validity to the CTS being either bad (or loose). They're cheap so i'll
change mine to see what happens.
$0.02
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
Subject: Re: DML: RE: Rough Cold Idle/Coolant Sensor
>
> -----Original Message-----
> From: Kyle Kozubal [mailto:grndak4x4@home.com]
> Sent: Monday, May 15, 2000 10:57 AM
> To: dakota-truck@buffnet.net
> Subject: DML: Rough Cold Idle/Coolant Sensor
>
> First, what could/would cause my truck to run rough, only on cold
start-ups?
> Once the truck warms up and is started things are fine, and it doesn't
idle
> like I have a 440 under the hood with a wild & nasty cam stuck in it. My
> truck has done this for a while now, and even though it doesn't bother be
> 'that' much, I still would like to fix it. I am leaning towards the
coolant
> sensor, which is about $15 or so.
>
> Has anyone ever replaced this coolant sensor on their Dakota? My
> understanding is that there are 2 types:
> *One is located close to the thermostat on the manifold which sends the
> computer how warm/cold/hot the coolant actually is. Could false readings
or
> a bad sensor could cause a rough idle at start ups(both cold and warm
> startups)?
> *The other is used for the temp gauge on the dash. This would obviously
> cause a poor or inaccurate reading on the temp gauge on the dash. Where is
> this one located?
>
> I have read alot online concerning the coolant sensor and have found a bad
> coolant sensor has the potential to cause excessive fuel consumption, poor
> cold idle, and even stalling. Like I stated in the beginning, the cold
start
> ups are nasty and rough, and there are NO fault codes coming up when I do
> the key on/off cycle. Oxygen sensor was replaced about 23,000 miles ago;
the
> cold idle problem did not change and was present beforehand. Any ideas?
> Kyle
> 93 Dakota 4x4 V6
>
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