Thread: 97 lesabre code p1870
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Old 11-13-2010, 05:00 PM   #2
maxwedge
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Re: 97 lesabre code p1870
The most common reason is the bore in the valve body for the TCC valve wears and causes the tcc to slip, but there are other causes also, if you do a site and google search there is a lot of info out there on this common GM code.
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