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73-87 Chevy _ GMC Trucks => Interior & Equipment => Topic started by: treepete on June 15, 2009, 12:24:03 pm

Title: Where is the tempature sensor located
Post by: treepete on June 15, 2009, 12:24:03 pm: Hey guys. Now that the oil gauge is working agin, I thought I would go after the tempature gauge, since that is not working as well.

I figure before I ask noob questions like "what makes it work" I thought I would apply some of my previous knowledge to the problem.
I assume that Ill be needing a new "tempature sensor unit" or something that reads the tempature of the engine and sends it to the gauge.

Can someone tell me where this sensor is located please so I can look for it myself and fix/replace it.

ok thanks,
Pete
Title: Re: Where is the tempature sensor located
Post by: VileZambonie on June 15, 2009, 12:27:36 pm: If it's a small block it'll be on the drivers side head. It's called a temperature sending unit. The sensor is for the computer.
Title: Re: Where is the tempature sensor located
Post by: Jay2D2 on June 15, 2009, 12:28:37 pm: If I remember correctly its on the drivers side of the block towards the front with one wire going to it,,, up near the manifold just below the valve cover.
Title: Re: Where is the tempature sensor located
Post by: eventhorizon66 on June 15, 2009, 01:52:01 pm: On the side of the driver side head, between the exhaust ports for cyl #1 and #3.
Title: Re: Where is the tempature sensor located
Post by: Skunksmash on June 15, 2009, 04:26:33 pm: Hey eventhorizon, ever see that movie, "Event Horizon"?
Title: Re: Where is the tempature sensor located
Post by: eventhorizon66 on June 15, 2009, 05:41:29 pm: Quote from: Skunksmash on June 15, 2009, 04:26:33 pm
Hey eventhorizon, ever see that movie, "Event Horizon"?

Yep
Title: Re: Where is the tempature sensor located
Post by: Skunksmash on June 15, 2009, 06:04:46 pm: It's horrific.
Title: Re: Where is the tempature sensor located
Post by: Irish_Alley on June 15, 2009, 11:53:38 pm: like vile said the sending unit is what you need or temp switch it looks like this one (http://contentinfo.autozone.com/znetcs/product-info/en/US/wl2/TU65/image/5/)
part number should be TU66 at the zone
the sensor thats for ecm looks like this one you don't need (http://contentinfo.autozone.com/znetcs/product-info/en/US/wl2/SU102/image/5/) it is in the intake
Title: Re: Where is the tempature sensor located
Post by: Skunksmash on June 16, 2009, 02:27:52 pm: Wonder why they don't just use the same exact sensor? Make things easier...
Title: Re: Where is the tempature sensor located
Post by: VileZambonie on June 16, 2009, 02:29:33 pm: Because they operate differently and have different resistance values. The NTC sensor is a negative coefficient thermistor.
Title: Re: Where is the tempature sensor located
Post by: rustys82 on June 16, 2009, 03:41:25 pm: i love talking negative and positive coefficients
Title: Re: Where is the tempature sensor located
Post by: treepete on June 16, 2009, 06:17:59 pm: lol, ok yeah I see it. thanks for all your help. I like the forum all you guys are super helpful.
Title: Re: Where is the tempature sensor located
Post by: BigBadJohn on June 21, 2009, 12:26:00 am: This thread will come in handy when Im finally done wiring under the dash and put my freshened up cluster back in :)