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Old February 6th, 2003, 08:34 PM   #1
Ed
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Mt. Diablo, Blackhawk and temp. gauge

We ventured down into Babbler territory Weds. to Mt Diablo, then down the south side to the Blackhawk auto museum. Both delightful undertakings.

However, on the very top of Diablo, on the way down, my temp. light started flashing. So I dutifully pulled over to a (uncommon) flat spot to check it out. Turned off the engine. Manual says coolant level or engine fan. Coolant level was fine (on the level), and the temp. was below normal operating temp, so I doubt that fan malfunction was a problem.

Light stayed off after restart. Any diagnoses? Guesses?
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Old February 6th, 2003, 08:55 PM   #2
Tom M (Sunol, CA)
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Re: Mt. Diablo, Blackhawk and temp. gauge

I would guess that it's a marginal coolant level along with the uneven surface of going up/down the mountain. I'd check it again when cool and on level ground to verify.
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Old February 6th, 2003, 10:16 PM   #3
Ed
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Re: Mt. Diablo, Blackhawk and temp. gauge

Yes, I thought of that, and checked the level when I got home. I checked it again just now. Lower than I've seen it before, but still above the minimum level.

After a year of use without adding coolant, maybe it would take a little now. I'll keep my eye on it.

Thank you.
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Old February 7th, 2003, 08:49 AM   #4
jonathan
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Look for a problem

Coolant doesn't just disappear, even after a year of hard running. It may have just had a bubble the entire time that finally burped free or it may be something else so be careful.
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Old February 7th, 2003, 10:40 AM   #5
Ed
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Re: Look for a problem

The "burp" idea is consistent with heading downhill on a steep grade. My Fiero is also susceptible to burping, and we watch for air when refilling that car.

I only had to add a very small amount of water, as the level was not below the minimum mark. I'll watch it for the infamous coolant leaks which we know can happen.
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