Overheating question - Off-Road Forums & Discussion Groups
Suzuki GEO All Discussion of all things, Suzuki and GEO

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 10-07-2003, 11:27 AM
Posts: n/a
Overheating question

1993 Samurai that is not really overheating, has never been in the red. It is just running warmer than it has before.

I have read several posts on here about hoses collapsing etc. So here is what happens. On the highway, after it gets to a normal temp, when I get going at 65-70 mphs (even had it up to 80 one day) the needle moves above the second line on the temp. gauge. Sitting or moving slow in heavy traffic it stays in the middle or just below the lower line on the temp. gauge.

Sound like a hose collapsing? I have noticed that the upper hose has a "bend" in it that looks like it could be tight. I noticed the other day after I had let the engine cool, say 1-2 hoursbest guess. That the lower and middle hoses were cool to the touch, but that the upper hose was still warm, not hot but not cool to the touch.

I have checked the radiator and it is full with no "huge" dinks or dings in the fins.

Is it something to worry about right now or can I wait to replace the hoses etc? My only problem is I am having back problems right now so any repairs may have to wait.

Thanks for the opinions and the help.

Sponsored Links
post #2 of (permalink) Old 10-07-2003, 02:47 PM
Join Date: Nov 2002
Posts: 386
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Overheating question

I wont say I had a similar problem, but I will say that a voltage irregularity will cause your idiot gauge to not read correctly. It drove me nuts [img]images/graemlins/cussing.gif[/img]until I finally figured out that the temp gauge isnt worth a crap.

Your best bet is to get a manual temp guage installed and dont pay attention to the idiot guage. The install is really easy, the worst part is draining the coolant. Then go from there. Then you can actually see what temp your running at, when the thermostat opens(or doesnt) and what speeds will vary your temp.

My #1 rule on hoses is, if it looks even the slightest bit dryrotted replace it. A $5 dollar hose is better than being left on the side of the road, or burning up your momo. Just my .02

Kamazuki [img]images/graemlins/grin.gif[/img]
Kamazuki is offline  
post #3 of (permalink) Old 10-07-2003, 02:51 PM
Can't Get Enough
Join Date: Jul 2002
Location: San Diego, CA
Posts: 1,002
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Overheating question

Hey Sluggo...

Sounds like the thermostat.... prolly sticking... try taking it out and running it for awhile... see what happens...

just my $.02
billybob is offline  
Sponsored Links
post #4 of (permalink) Old 10-07-2003, 04:16 PM
Keyboard Implanted
Nowhere's Avatar
Join Date: Mar 2001
Location: Altamonte Springs FL
Posts: 3,333
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Overheating question

Uhh, you don't have a problem, that's normal operating temp.
Nowhere is offline  
post #5 of (permalink) Old 10-07-2003, 04:20 PM
Old Hand
bradzuki's Avatar
Join Date: Aug 2001
Location: Oak Ridge, TN
Posts: 1,074
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Overheating question

yup, agree w/ Nowhere.

You ain't gots no problems.
kwit trippin'
bradzuki is offline  
post #6 of (permalink) Old 10-08-2003, 06:35 AM
James_Holland's Avatar
Join Date: Jul 2002
Location: High Wycombe, UK
Posts: 321
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Overheating question

Kamazuki has a point, one of the guys over here replaced just about everything, rad, fan, head gasket then fitted some aftermarket gauges and it wasn't overheating at all.
James_Holland is offline  
post #7 of (permalink) Old 10-08-2003, 09:31 AM
Way Outta Control
Join Date: Sep 1999
Location: usa
Posts: 10,815
Thanks: 0
Thanked 1 Time in 1 Post
Re: Overheating question

To see if it's a voltage (usually ground) problem, warm to normal, rev it up and hold it at freeway speeds. If it's voltage you'll see the gauge move up immediatly as you rev it - gas gauge may move too if it's the instrument panel ground.

While you are doing that, watch the lower hose - if it's collapsing you'll see it. The upper hose won't collapse since it's under pressure, but the lower hose can as it's on the suction side of the pump.

Yes, they can still collapse even when the cooling system pressure's up.

Running without a thermostat will most likely cause even more overheating at speed - as the water flows so fast through the radiator it doesn't get much chance to cool down - unless of course your radiator's partially plugged.
RRich is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome