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Old 10-05-2024, 03:20 PM   #1
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
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Re: Temp guage rising

Do a sanity check with an infrared thermometer pointed at the thermal sensor in the head and the water pump and then check the radiator where the water is going into it.

If the thermometer matches the gauge then check what the difference is between the water pump and where the top hose goes into the radiator. This should tell you if the thermostat is sticking slightly.
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1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
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RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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