Engine runs hot

Asked by Jun 05, 2016 at 08:14 PM about the 1995 Buick Riviera Supercharged Coupe FWD

Question type: General

I had my ecm and wires replaced and fans
come on and off when they are suppose to i
replaced thermostat car still runs a littl .
Warm 210-215 sometimes especially when
siting at a light what can i do toaje it run
cooler!

3 Answers

20,290

Have you try flushing the cooling system ?

1 of 1 people found this helpful.
1,620

The tempatures are not that bad especially when in traffic, the system determines the fan speed and until the temp get to around 230 the fans run at 1/2 speed.....when the temp gets above 230 the ECM turns on a relay that feed a full 12v to the fans and they run at full speed until the engine cools back down. If this really bothers you the ECM chip can be reprogramed to turn the fans on at lower temp.....this set-up was probably done to keep engine noise down.

Thanks

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