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7 replies to this topic

#1 belizeanbus

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Posted 08 July 2005 - 12:57 AM

My 1990 Loyale heats up in ways that don't make sense...

Usually I can drive long distances at a nice speed and there are no problems.

Sometimes going up a steep grade or winding it out in a low gear sends the temp gauge up very close to redline. Just last weekend, I was driving home from a place about five miles down the road, and a thousand feet down in elevation. I was sort of cruising the winding road. I probably never took it above 3rd gear, and likely not higher than 3000rpms. It almost redlined in the few minutes getting from there to here.

I recently replaced the thermostat, and the last time a mechanic was involved, he checked the radiator and found no leaks/problems.

What should I be looking for? Water pump? Why is this thing getting so hot?

Thanks...

#2 GLCraig

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Posted 08 July 2005 - 01:56 AM

It sounds like you could use a new radiator. Even though your mechanic thought is was fine, it's probably has too may rows plugged up to be effective when the engine running higher rpms especially if yours is a turbo model. It's not easy to look down inside one of these radiators and see the condition of the internals.

#3 belizeanbus

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Posted 18 July 2005 - 10:56 PM

I'd like to bring this thread back to life, if I could... I don't know much about radiators, so I'm looking for some advice about where to go with this one...

Haven't looked into it yet, but since we have two soobs around here, I guess I could swap radiators without too much work and see if that is indeed the problem. Then the one that ends up with the bad radiator can get the new one...

But...

Is a new one necessary? Can radiators be repaired, and is this what a "rod-out" is? Are Junk Yard radiators worth the effort (how would you know a good one from a bad one)? I've only gotten one price so far on a new one and it's $250-ish.

Always looking to save some cash...
Thanks

#4 freeldr

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Posted 19 July 2005 - 12:13 AM

i just did mine, take it to the right guys and they will as you say "rod it out" for around $50 and paint it up all pretty a and its as good as new. if yuor not a turbo model go get a turbo radiator from the junk yard and get it rebuilt. its a larger 2 core radiator instead of 1core. my 85gl wagon now runs at 1/3 temp gage no matter what i throw at it.

#5 NorthWet

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Posted 19 July 2005 - 12:41 AM

You can do a quick and dirty check of your radiator by running the engine up to normal operatig temps, and then placing your hand along the radiator core; pretty easy to do if no A/C, more of a challenge if you do have A/C. You are looking for cold regions on the radiator. Since the tubes run horizontally, these show up as horizontal cold stripes. Check the radiator top to bottom.

Another option is to have a radiator shop do a flow test on your out-of-car radiator.

Rodding the radiator is not very often an option these days. If you have a composite radiator (plastic tanks and metal core), I have been told that the replacement metal crimps the hold the tanks on cost around $80 (may be wrong or out of date). Aluminum cores can lose there ability to transfer heat even without plugging. And "rodding" an older radiator often causes leaks to occur, which are not really fixable in an aluminum radiator and sometimes like "chasing a rat down a hole" with copper radiators.

Since it seems that a major cause of dead Subaru engines is overheating, it might be not-too-expensive insurance to get a new radiator.

#6 freeldr

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Posted 20 July 2005 - 12:26 AM

theres always give and takes, if you do go new only go to yuor nearest soob dealer

#7 theDirtyRue

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Posted 20 July 2005 - 10:34 AM

If the radiator truly is your problem, then you can easily find one online for cheap... I've found them for under $60... but I needed it before the shipping would get it here so I had to purchase one locally...

but I think the website is www.importedcarparts.com

Go to their parts directory and its pretty simple from there.

#8 NorthWet

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Posted 20 July 2005 - 11:54 AM

Another possibility that I didn't see discussed: Is your electric fan coming on when it should? It is not uncommon for some component to fail, either switch, fan, or wiring/connectors.




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