If it just spikes up and then back down quickly I bet it's your thermostat. If it spikes up and down in less than about 30 seconds I would just swap it out as a start.
If it just spikes up and then back down quickly I bet it's your thermostat. If it spikes up and down in less than about 30 seconds I would just swap it out as a start.
'00 Silverado 4.8L (Gone)
'11 Silverado 4.8L
Originally Posted by RUFFNECK
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