Thread: 99 4.3 Rough Idle, Low Temp, Bad Gas Mileage
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Old 12-26-2008, 01:44 PM   #25
MT-2500
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Re: 99 4.3 Rough Idle, Low Temp, Bad Gas Mileage
Quote:
Originally Posted by dr_lee29
Yeah, its really cold, I stuck a thermometer in the radiator and sure enough its at 165.

Rad stay cold in cold weather.
You need to check the engine block tempt.
What is the PCM tempt sensor reading?
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