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Metro won't warm up, poor heat.; Bad MPG as well
Topic Started: Dec 3 2010, 12:19 AM (6,362 Views)
bogs
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Duct tape heals all wounds

I like a change of seasons, but I'm glad the lowest it hits around here on average is only slightly below 0f, worst I've seen is -15f (and I didn't go out during that :lol )
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snowfish
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Basic GearHead

poorman1
Dec 7 2010, 04:18 PM
-9 deg f is the forecast this weekend
Yeh, a little chilly :cold for cars parked outside not plugged in. :coffee

But man the sleds run strong! :drool

Let's see :hmm ......-9F.......ripping 60mph+ across the lake........what would that wind chill be? :news

Just give 'em a chance to breath before you kick it down! :cheers
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WJK
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My apologies if this is not in the right folder. Maybe silly question. Today the temp is -7C so about 12F. Normally my little zippy's heat is so hot that I have to back it down to almost the mid point to be able to sit in there. Today I got a piece of cardboard and placed it in front of the the rad. Not sure if I placed it right though, it is right up against the rad, went for a 100km drive and had no problem with the heat (not it's normal can't sit in there, but nice and toasty) and the operating temp is back up to the dead center of the gauge. A little concerned if I should have the cardboard away from the rad a little bit or if it is fine sitting right up against it.
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nerys
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Grr

no its perfectly fine won't hurt a thing. might want to upgrade to secure it though as it might move as it gets soggy :-)
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Bad Bent
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Facetious Educated Donkey

:gp and watch your temperature gauge to see if it rises above it's normal position. That's going to be the only factor, IMHO. :-/
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obaja
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Diesel Power

Coche Blanco
Dec 7 2010, 03:56 PM
-40 is too cold for a human, move somewhere else. lol
true that!!!!

50 degrees is too cold for me, let alone -40. Shoot
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poorman1


3 degrees F outside :cold :cold :cold
I started my metro after sitting in driveway for 2 weeks, had to start twice before it stayed running
Idled for 45 minutes and 1/4 inch of ice was melted from windshield and interior was beginning to get warm
Temp gauge was at 20 - 25 % :banana
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Car Nut
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16 degrees today. Took about 3 miles to get decent heat. Smoking at 7-8 miles. I HATE cold weather. Course I guess 16 sounds pretty tame compared to -9 or -40. That would totally suck.
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nerys
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Grr

poorman these cars for the most part WILL NOT warm up just idling. you have to drive it. ie at least sit there and throttle up a little (2000rpm) then it will warm up in a few minutes.
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zcrayfish
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I wish someone made some type of thermostatically controlled shutters that could go in front of the radiator to help our cars in the cold...

Lowe's sells some thermostatic foundation vents that are similar to what I have in mind:
http://www.lowes.com/pd_17140-228-RABL/LO_0__?catalogId=10051

Only problem is they're flimsy and would fail if used on a car :hmm
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Metro_caon
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In my case, I can drive around town at 35 mph for an hour with the heat on and the needle would barely move away from the cold mark, however, if I turn off the heater, it starts to warm up, but will not reach normal operating temp. Then I remembered that in the summer, I replaced the radiator with a "double core" unit instead of a regular "single core" radiator. It did great then, but now that it's 10 degrees, I noticed this heating problem.

Can the double core radiator be the problem? I put new coolant when I replaced the radiator back in June. A stuck thermostat is my next guess, but again, the cooling system was working great in the summer.
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Barton
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The radiator will only cool the engine down if the thermostat is open allowing the coolant to dissipate heat through the radiator, I have found that my car had a 180° thermostat put in it which is way too cold for mn winters so I'm putting in a 195°
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poorman1


nerys
Dec 8 2010, 09:40 PM
poorman these cars for the most part WILL NOT warm up just idling. you have to drive it. ie at least sit there and throttle up a little (2000rpm) then it will warm up in a few minutes.

After reading this thread I decided to "Test and not guess" and post my results in post # 67
I was surprised it warmed up as fast as it did I suspect that 4 " of snow on car added a lot of insulation and closed any gaps in hood that normally would cause a lot of heat loss
I also have a 100% radiator block
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snowfish
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Basic GearHead

My Wife picked me up, at the muffler shop, with her 93. (dropped off my 91 for some new plumbing) Her's was right in the middle where it should be. Mine still barely off cold.

There has to be a simple answer here. I'm wait for the "ah ha!" moment. Just ain't here yet!
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obaja
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Diesel Power

metro50
Dec 9 2010, 02:31 AM
Then I remembered that in the summer, I replaced the radiator with a "double core" unit instead of a regular "single core" radiator. It did great then, but now that it's 10 degrees, I noticed this heating problem.

Can the double core radiator be the problem? I put new coolant when I replaced the radiator back in June. A stuck thermostat is my next guess, but again, the cooling system was working great in the summer.
It can be a problem guaranteed! first hand experience. I swapped my single core plastic radiator for a double core metal and this thing barely heats up now. Takes a lot longer to heat up and it cools off a lot quicker. Nothing was changed only the radiator so i know the radiator made the diff. And the cooling fan barely ever comes on now.
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