Temp Gauge fluctuating...
 

I have a 1995 GSR and the temp gauge tends to move around a lot when it is at normal operating temperature.

the car runs fine and everything, but it just irritates me that the gauge is reading dead cold when i have been driving for a half an hour continously.

it will go up and indicate that it is running at normal temp and then it looks like it shuts off completely and goes back to cold.

any one have any ideas what it could be?

Re: Temp Gauge fluctuating... (svtec)
 

If it's just doing it slowly, it's probably "normal" - my B18B1 does the same thing basically.

- Nathan

Re: Temp Gauge fluctuating... (svtec)
 

Sounds like low fluid or a bad thermostat. Sometimes it's a bad sending unit or fan sensor.

Re: Temp Gauge fluctuating... (92Lx)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92Lx &raquo;</TD></TR><TR><TD CLASS="quote">If it's just doing it slowly, it's probably "normal" - my B18B1 does the same thing basically.

- Nathan</TD></TR></TABLE>

this is not normal fluctuation that i have. i know what you are talking about, but this is not that.

Re: Temp Gauge fluctuating... (slomofo)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slomofo &raquo;</TD></TR><TR><TD CLASS="quote">Sounds like low fluid or a bad thermostat. Sometimes it's a bad sending unit or fan sensor.</TD></TR></TABLE>

i checked the fluid and it is fine in both the radiator and the overflow, i was thinking that it may be the sending unit. anymore info on where this thing is located?

Re: Temp Gauge fluctuating... (svtec)
 

my friend had the same thing wrong and it was the thermostat

Re: Temp Gauge fluctuating... (8krdline)
 

thermostat is bad

Re: Temp Gauge fluctuating... (1slowhatchie)
 

if the thermostat was bad would the car have over heating issues?

Re: Temp Gauge fluctuating... (svtec)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by svtec &raquo;</TD></TR><TR><TD CLASS="quote">if the thermostat was bad would the car have over heating issues?</TD></TR></TABLE>

not always sometimes the thermostat is probably sticking and that's why the gauage goes up and down. First check the wire going to the sending unit and make sure the wire isn't broken are exposed also take out the sending unit and wipe it off, some times shit gets build up on it and it sends false readings. if every thing is good and your still getting the same problem , then change the thermostat. One of those things should fix your problem.

Re: Temp Gauge fluctuating... (svtec)
 

sounds like a problem with the guage cluster i had an electrical problem like that and just swapped out the cluster for an easy fix

Re: Temp Gauge fluctuating... (JdmEKCivic)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JdmEKCivic &raquo;</TD></TR><TR><TD CLASS="quote">

not always sometimes the thermostat is probably sticking and that's why the gauage goes up and down. First check the wire going to the sending unit and make sure the wire isn't broken are exposed also take out the sending unit and wipe it off, some times shit gets build up on it and it sends false readings. if every thing is good and your still getting the same problem , then change the thermostat. One of those things should fix your problem. </TD></TR></TABLE>


good call. i have heard that the thermostat can stick thus causing this kind of occurence. thanks for the help fellas. https://honda-tech.com/forums/images/smilies/emthup.gif

Re: Temp Gauge fluctuating... (svtec)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by svtec &raquo;</TD></TR><TR><TD CLASS="quote">... i was thinking that it may be the sending unit. anymore info on where this thing is located?</TD></TR></TABLE>On the head near the upper radiator hose. The coolant temperature sensor for the ECU has a 2-wire plug. The sender for the gauge is smaller & only has one wire.

The VTEC oil pressure switch is on the VTEC spool valve, don't confuse that with these temperature sensors.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by svtec &raquo;</TD></TR><TR><TD CLASS="quote">i have heard that the thermostat can stick thus causing this kind of occurence.</TD></TR></TABLE>Yeah, it might be that, too.