Thread: 2001 Impala 3.4L Weird Shifting
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Old 12-16-2017, 07:28 AM   #2
Blue Bowtie
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Re: 2001 Impala 3.4L Weird Shifting
The CTS needs to be addressed first. Without a reliable CTS signal the PCM will assume a -40° temperature and operate the engine in a very rich mode.
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