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01-18-2010, 06:53 PM | #1 | |
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2003 impala 3.4 p0128 error code
I have a 2003 Impala with the 3.4 engine. yesterday my check engine light came on. I went to oriley auto parts and scanned it. It came up with error code p0128. this has something to do with the coolant temp malfunction. I have been getting worse gas milage then i use to. and also when it is cold out the gauge doesnt go up past the 1/4 mark. my question is do I start with the thermostat? on the 3.4 it looks like one hell of a job. or do you think I should try the colant sensor first. or could it be something else?
thanks garys |
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01-18-2010, 06:57 PM | #2 | |
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Re: 2003 impala 3.4 p0128 error code
The coolant temp is taking too long to warm up, because of a stickey coolant thermostat.
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01-19-2010, 12:24 PM | #3 | |
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Re: 2003 impala 3.4 p0128 error code
Do the thermostat first, it is hard but not quite as hard as it looks.
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01-21-2010, 08:43 PM | #4 | ||
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Re: 2003 impala 3.4 p0128 error code
Quote:
thanks garys |
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01-21-2010, 08:54 PM | #5 | |
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Re: 2003 impala 3.4 p0128 error code
You can do it, see www.youtube.com/watch?v=ozwgznxGeNA
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01-22-2010, 05:08 PM | #6 | ||
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Re: 2003 impala 3.4 p0128 error code
Quote:
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01-23-2010, 03:56 PM | #7 | ||
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Re: 2003 impala 3.4 p0128 error code
Quote:
thanks garys |
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