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93 Toyota Tercel does not warm up
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DaleV
New User
Dec 15, 2008, 3:35 AM
Post #1 of 2
(3300 views)
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93 Toyota Tercel does not warm up
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It's winter in Alberta and very cold. My 93 Toyota Tercel takes forever to warm up. Coolant level is good, have changed out thermostat (more than once but doesn't help), radiator is completely covered, blower motor pumps out lots of air. The problem is- the engine sits on cold, sometimes for 30 mins, may eventually get warm, or maybe not. I can even leave the rad covered into the warmest spring months and it never overheats. Any ideas on how to get the engine to warm up would be appreciated? I either need to get a fur coat to wear- or maybe cover the motor with it so that it warms up.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Dec 15, 2008, 8:37 AM
Post #2 of 2
(3299 views)
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Re: 93 Toyota Tercel does not warm up
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Ok: I know it gets cold but engine should go up to the set temp of thermostat no matter. If you are talking -40F ambient actual temps I'll call that cold enough that heater may overcome engine heat by itself but if left unused it should still warm up. By design, covering radiator shouldn't be much or any help. What is no doubt happening is the thermostat isn't stopping coolant flow enough. This car was designed for 180F OE thermostat but a 192 or 195F is ok and available.
It should get a new thermostat yet again with strict attention paid to the installation. It MUST be in exact postition and be able to close tight. This one in diagram below shows a "jiggle" valve which aids in burping air out and may help give more accurate temp to the thermostat such that it opens more evenly. May take two tries of installing it with this still intact and again with it plugged up as that weep hole (that's what the valve is) may allow too much coolant thru it for the temps you deal with. Plugging it may cause erratic temps which isn't good either AND may make burping out air when installed much more difficult but will still work. Use exacting mix of anti-freeze needed and not too much. What is your real temp low that you really expect to see? Even 50/50 mix gives you -34F and will slush up below that if you get that cold and you could overheat because of that. 100% anti-freeze can also slush up so it needs a mix. The mix of 50/50 will not expand and break radiator or engine as the frozen mix will contract instead of expand. Once an engine is running there's enough radiant heat to keep even the -34F mix ok if it's -40F out! Yup!
Note: Anti-freeze stinks at transferring heat but that would show as a hot engine and poor amount of heat with heater for you at the extremes.
I would replace it again with the 195 but OE style to fit as that's critical! Moreover I would seal the edges of it water tight with "Permatex" gasket maker - be sure it's that one and not the adhesive. T-stat should be installed when parts are dry and warm and allow this goo to completely firm up and hold it in exact postiion for you. Don't overdo this as the strands of too much will allow thermostat to jam part open on little "spaghetti" like strands if overdone.
This can be solved if done right. Hey - cold is cold and it may not be so powerful as to make you want anything but full blast heat but unless you are way below the -40F mark it should behave.
Again: This just need to be installed with care noting the contact areas of engine and the outlet cap that they are not pocked letting coolant by or seal them.
Are you on your own with this job? Do you have a place that's above freezing and dry to work on this?
Note II: Things that help. Heavy floor mats to insulate the cabin even more. Any air gaps getting into cabin should be sealed up as best as possible.
This can work and be adequate,
T
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