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2006 Dodge grand caravan P0128 code

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maaqamar
New User

Jun 14, 2013, 8:09 AM

Post #1 of 8 (2764 views)
2006 Dodge grand caravan P0128 code Sign In

Year of vehicle = 2006
Make of vehicle = Dodge
Model of vehicle = Grand Caravan SXT
Engine size = 3.8 L
Mileage = 410000


I live in Saudi Arabia. I have Check Engine Light ON for 2 months. I got it checked with OBD and they told me that error code is P0128. I read online for this and came to know that it could be a thermostat problem. The car's heat gadget is working fine and starts with all the way down and slowly moves to half and then stays there for the rest of the drive. Can the heat gadget work OK even if the thermostat is out of order? OR are there any other possible reasons for P0128 to be checked for? And how can I rule-in or rule-out those probable causes?

Looking for usefu answers.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 14, 2013, 8:47 AM

Post #2 of 8 (2750 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

Replace the thermostat.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jun 14, 2013, 7:30 PM

Post #3 of 8 (2724 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

I second that response.

Faulty or missing thermostat is really the only things that could cause something like that.

That's unless the PCM is seeing a skewed coolant sensor reading or it has some weird software calibration bug which both are highly unlikely.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


maaqamar
New User

Jun 16, 2013, 9:53 AM

Post #4 of 8 (2695 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

Does the heat gadget locate in the instrument cluster depends on thermostat for engine temperature? If yes, then faulty thermostat would lead to failure of heat gadget??


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 16, 2013, 9:57 AM

Post #5 of 8 (2689 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

Maybe we are speaking a different language here.

Replace the thermostat to resolve that code.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



maaqamar
New User

Jun 16, 2013, 10:05 AM

Post #6 of 8 (2681 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

Sorry for bothering you. I understand that I have to replace Thermostat.

Just a little question, if you don't mind to answer "My car's heat gadget is working perfectly so it means that its work is independent of thermostat?"


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 16, 2013, 11:41 AM

Post #7 of 8 (2671 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

One has absolutely nothing to do with the other.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



maaqamar
New User

Jun 16, 2013, 12:06 PM

Post #8 of 8 (2666 views)
Re: 2006 Dodge grand caravan P0128 code Sign In

Thank you very much for helping me. Smile






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