Temperature off the scale
#1
Intermediate
Thread Starter
Join Date: Mar 2005
Location: Toronto
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
My temp gauge is reading off the scale (hot) most of the time. When its not, it reads normal. The engine appears to be running at normal temp so I guess its the gauge (tried a new sender unit which didn't fix it).
Can I fix this myself or does it need to be sent off for some boffins to fix?
thanks chaps.
oh my poor head
Can I fix this myself or does it need to be sent off for some boffins to fix?
thanks chaps.
![cherrsagai](https://rennlist.com/forums/graemlins/drink.gif)
Last edited by stenakt; 04-15-2007 at 01:17 PM.
#3
Pro
Join Date: Jul 2003
Location: Waukesha Wisconsin
Posts: 551
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
You might also have an air bubble in the cooling system. When you take any of it apart it is important to bleed the air out of it. There is a bleed port at the front of the engine (takes a 12mm wrench). Do a seach to find many threads on this topic.
#4
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Toronto eh. I have a remote infrared sensor to read temp so why not drop by the GTA get together on Saturday and I could take a reading ( go to all forums and click on Canada). You really don't want to be running off the scale though. If the temp reads normal some times and at other time hot it could be anumber of things. Do both fans come on when it gets hot?
#6
Nordschleife Master
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by fpena944
Check your grounds. I had the same problem too but it was intermittent.
#7
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by quinnfiske
You might also have an air bubble in the cooling system. When you take any of it apart it is important to bleed the air out of it. There is a bleed port at the front of the engine (takes a 12mm wrench). Do a seach to find many threads on this topic.
Trending Topics
#8
Chainsaw
Rennlist Member
Rennlist Member
![](https://rennlist.com/forums/images/ranks/veteran_navy.png)
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
If you need to cool the water down, try turning on the air conditioner. Turning on the A/C activates the fans which pulls more air through the radiator. My '86 944 runs close to the top, in the summer and at high revs (autocrossing). I turn the A/C on and the temp returns to normal, or at least close to normal.
#9
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Given that you live in Toronto, you prolly don't have this problem, but running water wetter helps lower all-around temps; I'll be throwing some in my rad in a bit. Then again, I live in Tucson...
#10
Addict
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Lemming
If you tap the plastic in front of the guage when it's pegged, will it return to normal?
#11
Nordschleife Master
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by ausgeflippt951
This is actually not very plausible, given the respective thermal conductivities of both water and air. If there were an air bubble, you'd be seeing a lower temp than actual.
#12
Nordschleife Master
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by fpena944
I could hit the top of the dash and it would at times return to normal. Do you think it might be something else?
I don't believe that you have anything wrong with your cooling system, instead you likely have bad connections at the guage end. Pull you cluster and check for good connections and clean you grounds. I am currently having the exact same problem with my 986 daily driver; but I'm too lazy to fix it.
#13
Nordschleife Master
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Lemming
I don't believe that you have anything wrong with your cooling system, instead you likely have bad connections at the guage end. Pull you cluster and check for good connections and clean you grounds. I am currently having the exact same problem with my 986 daily driver; but I'm too lazy to fix it.
#14
Intermediate
Thread Starter
Join Date: Mar 2005
Location: Toronto
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Lemming
I don't believe that you have anything wrong with your cooling system, instead you likely have bad connections at the guage end. Pull you cluster and check for good connections and clean you grounds. I am currently having the exact same problem with my 986 daily driver; but I'm too lazy to fix it.
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)