hoff2483
March 3rd, 2009, 12:13 PM
Hey guys,
My friend has '04 half ton chevy with the 5.3 LM7 ext. cab. I have updated his tire size so his speedo will read correctly, but other than that haven't done much as far as tuning. After I reflashed the PCM the truck idles at really low RPM's and will even die if left idling long enough. Any ideas what would cause this?
My friend has '04 half ton chevy with the 5.3 LM7 ext. cab. I have updated his tire size so his speedo will read correctly, but other than that haven't done much as far as tuning. After I reflashed the PCM the truck idles at really low RPM's and will even die if left idling long enough. Any ideas what would cause this?