Chrysler Repair/Code P0128

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Expert: - 11/21/2011


Question
I have a 2006 Dodge Charger 5.7- Malfunction light came on, car runs great, no overheating-antifreeze a little low so I topped it off. From what I can find, it could just be a sensor, my auto repair guy wants $80 to diagnose the problem. Happened a year ago and finally went out. Can I disconnect the battery to reset it. Then if it comes on again,worry about it.

Answer
Hi Harvey,
Thanks for the kind remarks and rating just now. May I ask a favor? I am in a neck and neck competition to be "volunteer of the month" and you may, if you wish, also 'rate' this question. Note that there is question where you are invited to nominate me for 'volunteer', and if you would respond to that with a 'yes' that would be appreciated greatly.
Roland


Hi Harvey,
That code says the engine coolant temp sensor's sensor voltage is reading too high. The temp sensor is located by the thermostat housing. It could be the sensor has gone bad, or its wires may be shorted together nearby on the plug harness.
The troubleshoot cover 4 pages in the manual which I can copy off a CD and attach to an email to you directly. But to get your email address you need to send me a NEW question where you check the keep question PRIVATE box, and in the text tell me the address. If you don't follow my directions the address will be erased.
Disconnecting the battery usually resets the codes, but it could come back as soon as it is detected once again.
Roland

Chrysler Repair

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Roland Finston

Expertise

I specialize in Chrysler/Dodge/Plymouth cars, minivans, and SUV's for the model years 1982-2008 based upon my 50-year DIY experience, factory shop manuals and wiring diagrams. I offer fast repair advice to help you minimize repair costs by helping you diagnose and do it yourself. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty.

I take questions one at a time between 8am and 10pm CT and attempt to answer within 20 minutes. "Maxed Out" means I am answering another question of otherwise busy, so try again later.

There are answers on file to more than sixteen thousand Chrysler questions at your finger tips: put a few key words in the "find" box (above) or click on "view past answers" for a chronological list of my q and a's. Don't use "Add to this answer" if you still have a question...ask it. As to trucks and jeeps I only have manuals for the '04-'06 model years.

Experience

Five decades as a 'do-it-yourselfer' on domestic and imported cars

Organizations
Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

Education/Credentials
Degrees in Physics/bruised knuckles.

Awards and Honors
"Top expert of 2010" and "2011" at Allexperts. Among top 50 experts for years 2006-2009 at Allexperts.

Quickest "average response time" at Allexperts (currently no. 1).

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