Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Follow up with over-heating question I posted before


  • Please log in to reply
34 replies to this topic

#26 mentis

mentis

    Eat, Live, Breath Subaru

  • Members
  • 327 posts
  • San Francisco, CA

Posted 12 July 2004 - 09:41 AM

The final answer is froget the stupid AC and fix the ENGINES cooling system first. :grin:

I was just re-reading this thread.... how did the thermostat work out for you?

That's also the route I am taking. I'll worry about the AC when all else is working well, as it's not much of a priority.

#27 lepetitprince

lepetitprince

    USMB Irregular

  • Members
  • 384 posts
  • Madison Heights

Posted 13 July 2004 - 01:45 AM

Since I have been busy, I don't have time to take my take and fix the broken bolt that holds the thermostat house. Since I will be going to need new bolts once I take out the broken one, I went to Ace hardware and purchased strongest grade bolt, and also bought a biggest hose clamp. Right now, one bolt and hose clamp is holding the thermostat housing. Once I have more time, then I will fix it and try all the ways that were posted previously. I know the thermostat is working, but temperature increases above normal temp, so I decided to assume that increasing temp is due to the blown HG. Since I have an engine that I would like to get rebuild, and put it in the Brat later, I'm going to drive around with blown HG. I was wondering what could be the consequence of my action. Hopefully not to bad.

thanks
Dan

#28 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 20,279 posts
  • Portland

Posted 13 July 2004 - 01:51 AM

If it runs, then you probably do not have a blown HG. Is it losing coolant rapidy? White smoke? Coolant in your oil? The engine would run poorly if at all, and you would certainly have water where it shouldn't be....

My guess is that your guage or sending unit are not accurate. If you have replaced the radiator, thermostat, and radiator cap, then your cooling system is working properly.

It takes a LOT to blow a HG on an EA81 usually. I have flogged the one in my wagon mercilessly and it comes back for more. Usually runs around the 3/4 mark when I'm off-roading. And my Brat is about the same.... I suspected the HG's and replaced them myself - since then I have had it hotter than I ever thought possible (blew a heater hose and lost ALL my coolant), and it still runs fine. It was so hot that it would not go over 30 MPH because the pinging was so bad, and the engine was smokeing from cooking the oil and dirt off the block....

GD

#29 lepetitprince

lepetitprince

    USMB Irregular

  • Members
  • 384 posts
  • Madison Heights

Posted 13 July 2004 - 02:01 AM

I would love the think that my temp sending unit is inaccurate. I don't know what is wrong with it. It stays on the standard temp for about 5-10minutes of driving then it starts to increase. Soon as I turn the heater on, it slowly decreases to normal temp again. If I turn off the heater while I'm driving, the temp starts to increase again. One day I wasn't paying attention to the temp, and after I parked my car, it started smoking. I think it was smoking from the radiator. I know it is not smart to do, but I open the radiator cap, and with big smoke, the radiator spitted out whole bunch of water. Good thing I wasn't in the way:lol:

thanks
Dan

#30 lepetitprince

lepetitprince

    USMB Irregular

  • Members
  • 384 posts
  • Madison Heights

Posted 13 July 2004 - 02:03 AM

oh oh oh, I remember there was one time when big white smoke came out. It was during the autocross. Everytime I took sharp turn with high speed, white smoke came out...But since then I haven't seen the "moby wongleflute"

#31 edrach

edrach

    Charter member OFRT

  • Members
  • 12,324 posts
  • Bothell, WA

Posted 13 July 2004 - 07:50 AM

What are the consequences of driving with a blown head gasket?

Having just gone through an engine on my '84 Brat which was loosing coolent on an increasing basis, I can tell you. The coolent loss will continue to increase. Eventually, the car won't get you home. When you check the oil, it will look like a chocolate milkshake due to the water in the oil. And...this is the really bad part...the engine will have a rod knock. So if you want to avoid a major engine rebuild, address the head gasket problem before the effectiveness of the oil is compromised.

#32 mentis

mentis

    Eat, Live, Breath Subaru

  • Members
  • 327 posts
  • San Francisco, CA

Posted 13 July 2004 - 09:37 AM

Yours is a GL-10, so you have a digidash.. its not actually getting hot, its a ground thing. Mine does the same thing.. the more electrical accessories that are on, the higher my temp gauge goes.. I added more grounds under the hood and that helped, but I finally said screw it and put an A-pillar gauge pod in with a spot for an aftermarket temp gauge.


I just installed an oil cooler a couple of days ago, and the digital temp gauge is back to it's old antics. Some time ago, the gauge would jump around by going up and then a few seconds later it would fall back down again. So what gives? I am a little concerned about this issue occurring now. Could it be that the oil cooler, which uses 3/8 oil line, is affecting oil pressure and that in turn is causing the engine to heat up sporadically?

My next step was going to be a temp sensor replacement and a thermostat replacement. I guess I should think about getting a real temp gauge too so that I can see what's really going on.

#33 SubaSkeet

SubaSkeet

    iDesert Destroyer!

  • Members
  • 332 posts
  • Las Vegas

Posted 10 August 2004 - 01:12 AM

i have the same problem with my 93 loyale, with the gauge reading really hot. i wish these things had actual temperatures instead of just a line separating 'good' from 'hot'. anyway, as seen before, after about 10 mins. of driving the car gets in the red. i will try reading the temp. from the outside using a laser reader but does anyone know what the temp. in the red is said to be at? is it in the manual? thanks, skeet

#34 baccaruda

baccaruda

    YOUR FAVORITE MOD

  • Moderator
  • 6,941 posts
  • SpoVegas, WA

Posted 10 August 2004 - 01:30 AM

any of you guys with cooling bugs should install after market gauges and add extra ground wires under the hood. you can even take the aftermarket gauges out after you chase the bugs out, but for now, it's $20 well spent.

grounds usually come like this from the factory:
battery to chassis OR engine
engine to chassis
transmission to chassis
radiator to frame (more common on older cars)

inspect all these and add more in a similar fashion! that will tame your digidash abnormalities.

#35 mentis

mentis

    Eat, Live, Breath Subaru

  • Members
  • 327 posts
  • San Francisco, CA

Posted 19 September 2004 - 09:44 AM

After recommendations from the forum, I got an OEM thermostat from the dealer for a good $12.50. I have noticed my temps more stable with that in, and I know that whenever I turn any extra electrical items on it goes up. This has at least helped me not to worry, knowing that the temps are where they should be.

I still haven't added the extra grounds, but will do that soon, before the big road trip to NC.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users