ENGINE COOLANT QUESTION

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Old 24 Aug 2009, 08:54 pm   #1 (permalink)
BrianInNY
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Default ENGINE COOLANT QUESTION

Excuse the basic question, but I'm not too adept at car repair/
maintaining, but I wish to learn. My manual is long gone and trying
to find the answers on the 'net is not as comprehensive as i first
thought.

I have a 2007 4-door Corolla. My engine is running a little hot and
I'm thinking my engine coolant may need to be changed. Again, sorry
for the dumb question(s). Must I first drain all the anti-freeze
before anything else? After, add just new anti-freeze or must it be a
mixure with water? Also, there's a plastic tube with "engine coolant"
written across it. Must I fill that separately or will that tube be
filled once the coolant is replaced and the engine started? Anything
else besides what I stated above? If there's a step I didn't mention,
please advise. This board has been very helpful in the past.

Thanks again in advance. Much appreciated.

Brian
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Old 25 Aug 2009, 10:38 am   #2 (permalink)
Ralph Mowery
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Default Re: ENGINE COOLANT QUESTION


"BrianInNY" <bjn3115@aol.com> wrote in message
news:93386223-2935-4e5e-a619-545f9ff63963@u38g2000pro.googlegroups.com...
> Excuse the basic question, but I'm not too adept at car repair/
> maintaining, but I wish to learn. My manual is long gone and trying
> to find the answers on the 'net is not as comprehensive as i first
> thought.
>
> I have a 2007 4-door Corolla. My engine is running a little hot and
> I'm thinking my engine coolant may need to be changed. Again, sorry
> for the dumb question(s). Must I first drain all the anti-freeze
> before anything else? After, add just new anti-freeze or must it be a
> mixure with water? Also, there's a plastic tube with "engine coolant"
> written across it. Must I fill that separately or will that tube be
> filled once the coolant is replaced and the engine started? Anything
> else besides what I stated above? If there's a step I didn't mention,
> please advise. This board has been very helpful in the past.
>
> Thanks again in advance. Much appreciated.
>
> Brian


Your engine is probaly not running hot just because you need to change the
coolant. It may be low.

Anyway, there is no way to just drain the antifreeze. All the coolant is
mixed. Just a thought . If you have been adding antifreze and no water ,
you may have the mix way off and that can cause overheating.

All the coolant should be mixed half water and half antifreze. You can buy
the premixed coolant that is already mixed to the correct portions, but it
usually costs more. You pay a lot for the water. Also buy the correct kind
for you car. There are now several types on the market.

I am not sure about the tube you mention. Normally you will drain all the
coolant out by opening the valve at the bottom of the radiator. Close the
valve and add in to the top of the radiator a mix of 50/50 (antifreeze and
water) to the radiator is full. Then check the plastic container that is
next to the radiator where you normally add the coolant and see if it is up
to the normal area. If not, add some coolant mix to it. Start the engine
and let it run for a while. When it is up to the operating temperature, cut
it off. After it cools off, check the plastic container and see if it needs
any more coolant . This is sort of an overflow container. When the engine
heats up and cools off, the coolant is forced into it and then sucked back
intothe radiator system. If it is low when the engine is cool, you need to
add some coolant mixture.

Just be careful that you do not get the coolant tank and the windshield
washer fluid containers under the hood mixed up.



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Old 25 Aug 2009, 07:58 pm   #3 (permalink)
msrdude
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Default Re: ENGINE COOLANT QUESTION

On Aug 25, 8:38*am, "Ralph Mowery" <rmowery28...@earthlink.net> wrote:
> "BrianInNY" <bjn3...@aol.com> wrote in message
>
> news:93386223-2935-4e5e-a619-545f9ff63963@u38g2000pro.googlegroups.com...
>
>
>
> > Excuse the basic question, but I'm not too adept at car repair/
> > maintaining, but I wish to learn. *My manual is long gone and trying
> > to find the answers on the 'net is not as comprehensive as i first
> > thought.

>
> > I have a 2007 4-door Corolla. *My engine is running a little hot and
> > I'm thinking my engine coolant may need to be changed. *Again, sorry
> > for the dumb question(s). *Must I first drain all the anti-freeze
> > before anything else? *After, add just new anti-freeze or must it be a
> > mixure with water? *Also, there's a plastic tube with "engine coolant"
> > written across it. *Must I fill that separately or will that tube be
> > filled once the coolant is replaced and the engine started? *Anything
> > else besides what I stated above? *If there's a step I didn't mention,
> > please advise. *This board has been very helpful in the past.

>
> > Thanks again in advance. *Much appreciated.

>
> > Brian

>
> Your engine is probaly not running hot just because you need to change the
> coolant. *It may be low.
>
> Anyway, there is no way to just drain the antifreeze. *All the coolant is
> mixed. *Just a thought . *If you have been adding antifreze and no water ,
> you may have the mix way off and that can cause overheating.
>
> All the coolant should be mixed half water and half antifreze. *You canbuy
> the premixed coolant that is already mixed to the correct portions, but it
> usually costs more. *You pay a lot for the water. *Also buy the correct kind
> for you car. *There are now several types on the market.
>
> I am not sure about the tube you mention. *Normally you will drain all the
> coolant out by opening the valve at the bottom of the radiator. *Close the
> valve and add in to the top of the radiator a mix of 50/50 (antifreeze and
> water) to the radiator is full. *Then check the plastic container that is
> next to the radiator where you normally add the coolant and see if it is up
> to the normal area. *If not, add some coolant mix to it. *Start the engine
> and let it run for a while. *When it is up to the operating temperature, cut
> it off. *After it cools off, check the plastic container and see if it needs
> any more coolant . * This is sort of an overflow container. *When theengine
> heats up and cools off, the coolant is forced into it and then sucked back
> intothe radiator system. *If it is low when the engine is cool, you need to
> add some coolant mixture.
>
> Just be careful that you do not get the coolant tank and the windshield
> washer fluid containers under the hood mixed up.


How many miles are on that corolla? Engine coolants are recommended to
be changed every 30,000 miles, but I just change it when the color
seems to go a little bad. I would check the coolant reservoir to see
if it is low or not. If low, add more antifreeze, but make sure it is
50/50 coolant. If you do not know how to mix water with anitfreeze (or
not enough) or do not want to do it, just buy one that is pre-mixed,
but it will cost more. Then check the color of the coolant. It should
be a good reddish color (or pink not sure). If it seems like it is
kinda yellowish reddish or not good solid red, then it is getting bad.
The best way is to smell the coolant. If it smells like clay, then it
is going bad.

There should be a drain plug under or below the radiator. If you don't
know what that is it is the one that has a hose and connects to the
coolant reservoir, and it has a cap that says don't open when engine
is hot. Use pliers to loosen the plug and then remove it. If you have
bad coolant or coolant smells, you want to flush it with water (garden
hose and with engine running). Replace the plug, add coolant until it
is to the top, replace the radiator cap, and add coolant to the
coolant reservoir. Run the engine for 5-10 minutes, then shut it off
and add more coolant to the reservoir because the reservoir will be
almost to all empty. Then drive the car a few miles and then check the
reservoir again. Add more if needed. Plain and simple.
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Old 25 Aug 2009, 09:18 pm   #4 (permalink)
ransley
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Default Re: ENGINE COOLANT QUESTION

On Aug 24, 8:54*pm, BrianInNY <bjn3...@aol.com> wrote:
> Excuse the basic question, but I'm not too adept at car repair/
> maintaining, but I wish to learn. *My manual is long gone and trying
> to find the answers on the 'net is not as comprehensive as i first
> thought.
>
> I have a 2007 4-door Corolla. *My engine is running a little hot and
> I'm thinking my engine coolant may need to be changed. *Again, sorry
> for the dumb question(s). *Must I first drain all the anti-freeze
> before anything else? *After, add just new anti-freeze or must it be a
> mixure with water? *Also, there's a plastic tube with "engine coolant"
> written across it. *Must I fill that separately or will that tube be
> filled once the coolant is replaced and the engine started? *Anything
> else besides what I stated above? *If there's a step I didn't mention,
> please advise. *This board has been very helpful in the past.
>
> Thanks again in advance. *Much appreciated.
>
> Brian


You do not run hotter on old coolant, 07, how many miles, it is
unlikely you need it changed going by miles. Is expansion tank at
proper level, what is running a little hot. Replacing all coolant is
alot more involved then draining on most cars as air can get trapped
so you have to know what your car needs. Have you added antifreeze to
it, it must be mixed with distilled water. Do fans run, is radiator
clean, and you know the coolant level and percentage of antifreeze
correct-its original. How full is expansion tank and is it at marked
level, do you have a radiator cap and you saw radiator is full. Old
coolant will Not make you run hotter, old coolant just gets acidic and
looses some aditives.
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Old 28 Aug 2009, 06:56 am   #5 (permalink)
mred
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Default Re: ENGINE COOLANT QUESTION

On Aug 24, 6:54*pm, BrianInNY <bjn3...@aol.com> wrote:
> Excuse the basic question, but I'm not too adept at car repair/
> maintaining, but I wish to learn. *My manual is long gone and trying
> to find the answers on the 'net is not as comprehensive as i first
> thought.
>
> I have a 2007 4-door Corolla. *My engine is running a little hot and
> I'm thinking my engine coolant may need to be changed. *Again, sorry
> for the dumb question(s). *Must I first drain all the anti-freeze
> before anything else? *After, add just new anti-freeze or must it be a
> mixure with water? *Also, there's a plastic tube with "engine coolant"
> written across it. *Must I fill that separately or will that tube be
> filled once the coolant is replaced and the engine started? *Anything
> else besides what I stated above? *If there's a step I didn't mention,
> please advise. *This board has been very helpful in the past.
>
> Thanks again in advance. *Much appreciated.
>
> Brian


In a 2007? I dont think you should be having "running hot " problems

How do you know ? its running hot?
Has the needle on the gauge changed postion? Is it in stop and go
traffic or highway driving>

If its in stop and go traffic I would suspect a cooling fan may ? not
be coming on when required.

It could ? be a stuck thermostat as well,but that is remotely unlikely
on such a new vehicle.

If on the highway I would suspect a plugged rad but that is improbable
on a 2007

It could also be a faulty water pump ?Which on a car as new as yours
is unlikely but remotely possible.

It could be ? a faulty rad cap but then again its only a two year old
car so I doubt it.

You dont say how many miles on this vehicle .?

Old rad fluid has nothing to do with running hot .

Is the overflow container up to level ?

The question remains how do you know its running hot?

Ed

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Old 28 Aug 2009, 02:25 pm   #6 (permalink)
ransley
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Default Re: ENGINE COOLANT QUESTION

On Aug 28, 6:56*am, mred <m...@295.ca> wrote:
> On Aug 24, 6:54*pm, BrianInNY <bjn3...@aol.com> wrote:
>
>
>
>
>
> > Excuse the basic question, but I'm not too adept at car repair/
> > maintaining, but I wish to learn. *My manual is long gone and trying
> > to find the answers on the 'net is not as comprehensive as i first
> > thought.

>
> > I have a 2007 4-door Corolla. *My engine is running a little hot and
> > I'm thinking my engine coolant may need to be changed. *Again, sorry
> > for the dumb question(s). *Must I first drain all the anti-freeze
> > before anything else? *After, add just new anti-freeze or must it be a
> > mixure with water? *Also, there's a plastic tube with "engine coolant"
> > written across it. *Must I fill that separately or will that tube be
> > filled once the coolant is replaced and the engine started? *Anything
> > else besides what I stated above? *If there's a step I didn't mention,
> > please advise. *This board has been very helpful in the past.

>
> > Thanks again in advance. *Much appreciated.

>
> > Brian

>
> In a 2007? I dont think you should be having "running *hot " problems
>
> How do you know ? its running hot?
> Has the needle on the gauge changed postion? Is it in stop and go
> traffic or highway driving>
>
> If its in stop and go traffic I would suspect a cooling fan may ? not
> be coming on when required.
>
> It could ? be a stuck thermostat as well,but that is remotely unlikely
> on such a new vehicle.
>
> If on the highway I would suspect a plugged rad but that is improbable
> on a 2007
>
> It could also be a faulty water pump ?Which on a car as new as yours
> is unlikely but remotely possible.
>
> It could be ? a faulty rad cap but then again its only a two year old
> car so I doubt it.
>
> You dont say how many miles on this vehicle .?
>
> Old rad fluid has nothing to do with running hot .
>
> Is the overflow container up to level ?
>
> The question remains how do you know its running hot?
>
> Ed- Hide quoted text -
>
> - Show quoted text -


It probably cooks his "Manifold Stew" faster, thats steak, potatoes,
carrots, onions, tightly wrapped in aluminum on the engine for a trip
to the local beach.
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Old 10 Sep 2009, 01:46 pm   #7 (permalink)
Michael
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Default Re: ENGINE COOLANT QUESTION

On Aug 24, 6:54*pm, BrianInNY <bjn3...@aol.com> wrote:
> Excuse the basic question, but I'm not too adept at car repair/
> maintaining, but I wish to learn. *My manual is long gone and trying
> to find the answers on the 'net is not as comprehensive as i first
> thought.
>
> I have a 2007 4-door Corolla. *My engine is running a little hot and
> I'm thinking my engine coolant may need to be changed. *Again, sorry
> for the dumb question(s). *Must I first drain all the anti-freeze
> before anything else? *After, add just new anti-freeze or must it be a
> mixure with water? *Also, there's a plastic tube with "engine coolant"
> written across it. *Must I fill that separately or will that tube be
> filled once the coolant is replaced and the engine started? *Anything
> else besides what I stated above? *If there's a step I didn't mention,
> please advise. *This board has been very helpful in the past.
>
> Thanks again in advance. *Much appreciated.
>
> Brian



You can go to Toyota's website, call their customer service, and they
will send you a replacement manual for free. I had to do this for my
'02 Sienna I bought last year.

Most car maintenance procedures are detailed in the Haynes manual,
which you can buy at any local car shop for around $20.

Michael
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Old 15 Sep 2009, 01:53 pm   #8 (permalink)
hls
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Default Re: ENGINE COOLANT QUESTION


"BrianInNY" <bjn3115@aol.com> wrote in message news:93386223-2935-4e5e->
> I have a 2007 4-door Corolla. My engine is running a little hot and
> I'm thinking my engine coolant may need to be changed.


First of all, are you sure it is overheating?
Second, if is it overheating, is it worse when standing still, or is it
worse when
at highway speed?
Have you taken a look at the radiator exterior? This time of year it is not
unusual to pick up grass clippings, trash, paper, etc on the front of the
radiator and/or air conditioning condensor...and that will make you run
hotter at all speeds. Sometimes just an external radiator wash will solve
a lot of problems.

There are lots of possibilities involved here, but be sure you dont let
it go too far. If you ever really overheat these engines, you can do a lot
of serious damage.

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