IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Auto Tech => Topic started by: Scoobum on May 25 2013, 08:06:36 PM

Title: SBC Engine Question
Post by: Scoobum on May 25 2013, 08:06:36 PM

The 85 IROC I have suddenly pegged the analog temperature gauge. Water temperature is fine. Would it be the sender unit in the PS head has taken a dump?

Title: Re: SBC Engine Question
Post by: Steve Wood on May 25 2013, 08:41:15 PM

sounds like...some where there should be a table listing resistances vs temperatures so you could measure the sender resistance and see if it is showing a high temp

Title: Re: SBC Engine Question
Post by: daveismissing on May 25 2013, 09:37:59 PM

[font=.HelveticaNeueUI]http://www.lbfun.com/warehouse/tech_info/gauges%20&%20instruments/Temp-Sending-Unit-and-GaugeCF-Thread.pdf[/font]

Title: Re: SBC Engine Question
Post by: daveismissing on May 25 2013, 10:35:17 PM

A short to ground would peg the gauge high I think

Title: Re: SBC Engine Question
Post by: $1987 GN$ on May 25 2013, 11:23:55 PM

Just did one of these a few weeks ago, sending unit was bad.

Take the wire off it and see what happens.

If you need more info follow the pic attached.


AJ___

Title: Re: SBC Engine Question
Post by: Scoobum on May 26 2013, 09:08:39 AM

Thanks for the info gents.