SOLVED:
cause was the wire tuck. there are two electrical harness grounds behind each headlight that need to be bolted to the frame. This caused the temp gauge misaccurate reading, the fan to run at partial speed, and teh turn signal and hazard lights to dim when the fog lights were on.
noone ever mentions these as "grounds" as they are not so much battery or engine grounds but are specific to the car's internal electric.
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Car fan turns on but doesn't spin as fast as it should. Tried another fan and same issue. When I connect fan to battery directly it spins like it use to. I triple checked all grounds and can't figure this out.
Recent engine swap.
Fans turn on, bottom coolant hose is hot so thermostat is good.
Also temp gauge going up when driving on the highway and on the streets. Even with heater blowing. Coolant isn't boiling and im thinking this is an electrical issue, like a bad ground or something.
Insight please
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