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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: southdakota85chevy on August 23, 2010, 09:35:49 pm

Title: coolant sensor
Post by: southdakota85chevy on August 23, 2010, 09:35:49 pm

ok so the deal is i have an 85 with a 350, but the block is not necessarily from an 85 because its a reman., but the problem was the temp gauge quit working so i replaced the sensor on the block, and now the temp sensor that o reilys gave just shoots over to the hot side as soon as i start it, sensor looks identical, what would cause this?

Title: Re: coolant sensor
Post by: beastie_3 on August 23, 2010, 09:37:59 pm

a bad sensor.

Title: Re: coolant sensor
Post by: Irish_Alley on August 24, 2010, 04:00:52 am

x2 but just to be sure unplug it and don't let it ground out and see what your gauge does

Title: Re: coolant sensor
Post by: VileZambonie on August 24, 2010, 09:50:22 pm

You need a coolant temperature sending unit for a gauge not for an idiot light and not a sensor. The coolant temp sensor is for the ecm not the gauge.

Title: Re: coolant sensor
Post by: beastie_3 on August 25, 2010, 11:07:50 am

Quote from: beastie_3 on August 23, 2010, 09:37:59 pm

a bad sensor.

OP called it a sensor, so i did as well. But yes it is a temp sending unit.