temp guage

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ltbll - 09 Apr 2007 01:46 GMT

can anyone tell me why i get no reading on my temp guage on a 89chevy z24
2.8 has a new temp sending unit and new head gaskets and heads were
reworked???

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Scott Dorsey - 09 Apr 2007 14:06 GMT

>can anyone tell me why i get no reading on my temp guage on a 89chevy z24
>2.8 has a new temp sending unit and new head gaskets and heads were
>reworked???

I can't, but the voltmeter can.

Check the voltage at the sending unit... you should see something there.
Check it on the other end of the wire at the instrument cluster.... you
should see the same thing there as well.

If you don't see voltage, you have a broken wire or an issue in the gauge.
--scott

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Steve Walker - 10 Apr 2007 00:59 GMT

> can anyone tell me why i get no reading on my temp guage on a 89chevy z24
> 2.8 has a new temp sending unit and new head gaskets and heads were
> reworked???

Did you bleed the air out of the syatem? IIRC the 2.8 and 3.1 had
bleeders to release trapped air in the heads.

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Steve Walker
Fusion640@verizonwallet.net (remove wallet to reply)

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Kjun - 13 Apr 2007 00:19 GMT

"ltbll" <ltbll01@yahoo.com> wrote in news:4a8ae510d278ab24b4c1956dafbcec35
@localhost.talkaboutautos.com:

> can anyone tell me why i get no reading on my temp guage on a 89chevy z24
> 2.8 has a new temp sending unit and new head gaskets and heads were
> reworked???

on the rear head you will see a sending unit back towards the trans. one
drk green wire. unhook wire...open circuit = full cold on guage /short wire
to ground = full hot. you have now tested the dash guage unit...pass or
fail?...................of course you have made sure the sending unit IS
for a guage and not a gore light..................kjun

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