| Author |
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alojohngoatoyota
Guest
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 Posted:
Sun Nov 20, 2005 1:13 am Post subject:
toyota avensis overheating |
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1999 avensis temp gauge rises, fan comes on as req, heater just puts out
cold air....any suggestions ive changed the thermostat its not that.
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Hachiroku
Guest
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| Posted:
Sun Nov 20, 2005 1:15 am Post subject:
Re: toyota avensis overheating |
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On Sat, 19 Nov 2005 14:13:18 -0500, alojohngoatoyota wrote:
| Quote: | 1999 avensis temp gauge rises, fan comes on as req, heater just puts out
cold air....any suggestions ive changed the thermostat its not that.
|
Got coolant?
Or, is the heater core plugged, or is the valve not opening? The valve
should be near the firewall slightly to the left of venter, looking
towards the FW. |
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Jeff Strickland
Guest
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| Posted:
Sun Nov 20, 2005 4:46 am Post subject:
Re: toyota avensis overheating |
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My guess is the water pump itself has failed. Some cars use plastic
impellers on the waterpump, and the impeller blades wear out to the point
that water does not pump properly. One of the signs that this is the problem
is poor circulation through the Heater.
"alojohngoatoyota" <dave_meggy@yahoo.co.uk> wrote in message
news:7dd4fdc1ac3dfd1e4038df8e11eba9ac@localhost.talkaboutautos.com...
| Quote: | 1999 avensis temp gauge rises, fan comes on as req, heater just puts out
cold air....any suggestions ive changed the thermostat its not that.
|
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Ray O
Guest
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| Posted:
Sun Nov 20, 2005 9:17 am Post subject:
Re: toyota avensis overheating |
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"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:75adncJX-LvXNuLenZ2dnUVZ_vmdnZ2d@ez2.net...
| Quote: | My guess is the water pump itself has failed. Some cars use plastic
impellers on the waterpump, and the impeller blades wear out to the point
that water does not pump properly. One of the signs that this is the
problem is poor circulation through the Heater.
|
How many miles/kilometers on the engine? How many miles/kilometers on the
timing belt?
--
Ray O
correct the return address punctuation to reply
| Quote: |
"alojohngoatoyota" <dave_meggy@yahoo.co.uk> wrote in message
news:7dd4fdc1ac3dfd1e4038df8e11eba9ac@localhost.talkaboutautos.com...
1999 avensis temp gauge rises, fan comes on as req, heater just puts out
cold air....any suggestions ive changed the thermostat its not that.
|
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Jeff Strickland
Guest
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| Posted:
Sun Nov 20, 2005 11:53 pm Post subject:
Re: toyota avensis overheating |
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"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:50249$437ff595$180fead6$26834@msgid.meganewsservers.com...
| Quote: |
"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:75adncJX-LvXNuLenZ2dnUVZ_vmdnZ2d@ez2.net...
My guess is the water pump itself has failed. Some cars use plastic
impellers on the waterpump, and the impeller blades wear out to the point
that water does not pump properly. One of the signs that this is the
problem is poor circulation through the Heater.
How many miles/kilometers on the engine? How many miles/kilometers on the
timing belt?
--
|
It's hard for me to say, the car belongs to the OP. Having said that, a '99
is closing in on 7 years old and the water pump makes sense as a place to
start looking ...
It would help to know the stuff you asked about though. |
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Ray O
Guest
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| Posted:
Mon Nov 21, 2005 9:18 am Post subject:
Re: toyota avensis overheating |
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"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:DOadnSHm37CcJR3eRVn-sw@ez2.net...
| Quote: |
"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:50249$437ff595$180fead6$26834@msgid.meganewsservers.com...
"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:75adncJX-LvXNuLenZ2dnUVZ_vmdnZ2d@ez2.net...
My guess is the water pump itself has failed. Some cars use plastic
impellers on the waterpump, and the impeller blades wear out to the
point that water does not pump properly. One of the signs that this is
the problem is poor circulation through the Heater.
How many miles/kilometers on the engine? How many miles/kilometers on
the timing belt?
--
It's hard for me to say, the car belongs to the OP. Having said that, a
'99 is closing in on 7 years old and the water pump makes sense as a place
to start looking ...
It would help to know the stuff you asked about though.
|
I've never heard of the impeller blades in a Toyota water pump wearing out.
A more likely sign of Toyota water pump failure is a leak from the seal. If
the water pump is driven by the flat side of the timing belt (I don't know
if the Avensis has a timing belt or chain) and the belt is worn or stretched
or improperly tensioned, then the water pump may not be driven properly.
Other things to check - coolant condition and level, air in the cooling
system, coolant circulation, improper thermostat installation, radiator,
faulty coolant temperature sender or gauge, ignition timing, and head
gasket.
--
Ray O
correct the return address punctuation to reply |
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Ray O
Guest
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| Posted:
Wed Nov 23, 2005 9:18 am Post subject:
Re: toyota avensis overheating |
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"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:xfidnfW-TIuYcR7eRVn-sw@ez2.net...
| Quote: |
"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:393a9$43816861$180fead6$25774@msgid.meganewsservers.com...
"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:DOadnSHm37CcJR3eRVn-sw@ez2.net...
"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:50249$437ff595$180fead6$26834@msgid.meganewsservers.com...
"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:75adncJX-LvXNuLenZ2dnUVZ_vmdnZ2d@ez2.net...
My guess is the water pump itself has failed. Some cars use plastic
impellers on the waterpump, and the impeller blades wear out to the
point that water does not pump properly. One of the signs that this is
the problem is poor circulation through the Heater.
How many miles/kilometers on the engine? How many miles/kilometers on
the timing belt?
--
It's hard for me to say, the car belongs to the OP. Having said that, a
'99 is closing in on 7 years old and the water pump makes sense as a
place to start looking ...
It would help to know the stuff you asked about though.
I've never heard of the impeller blades in a Toyota water pump wearing
out.
Actually, I haven't heard of it on a Toyota either, but it is a common
problem for water pumps to have. Obviously, it requires a plastic impeller
on the pump, and I don't know if the OPs car has this or not.
A more likely sign of Toyota water pump failure is a leak from the seal.
If the water pump is driven by the flat side of the timing belt (I don't
know if the Avensis has a timing belt or chain) and the belt is worn or
stretched or improperly tensioned, then the water pump may not be driven
properly.
Other things to check - coolant condition and level, air in the cooling
system, coolant circulation, improper thermostat installation, radiator,
faulty coolant temperature sender or gauge, ignition timing, and head
gasket.
Head Gasket? Really? His only complaint was that the heater blows cold,
wouldn't the head gasket cause other problems that are more important than
the heater output?
|
When I list multiple things to check, I list them in order from most likely
to least likely, based on my experience. I rarely post SWAGS because they
are seldom correct.
From my experience in meeting with customers, I learned that they tend to
fixate on a condition that bothers them and ignore other potentially big
problems and so they don't provide complete information for a diagnosis.
IMO, the head gasket is the least likely problem for the reasons that you
mention - other symptoms, but I'm not discounting the possibility that the
OP is missing other symptoms like leaks, steam in the exhaust, milky oil,
oily coolant, etc.
| Quote: |
PS
You suggested the water pump is driven by the timing belt, but my guess is
you meant to say fan belt (or serpentine belt).
|
I did mean the timing belt. Water pumps are generally not driven by a fan
(accessory drive) belt, especially transverse-mounted FWD drivetrains.
--
Ray O
correct the return address punctuation to reply |
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Jeff Strickland
Guest
|
| Posted:
Wed Nov 23, 2005 9:18 am Post subject:
Re: toyota avensis overheating |
|
|
"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:393a9$43816861$180fead6$25774@msgid.meganewsservers.com...
| Quote: |
"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:DOadnSHm37CcJR3eRVn-sw@ez2.net...
"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:50249$437ff595$180fead6$26834@msgid.meganewsservers.com...
"Jeff Strickland" <crwlr@yahoo.com> wrote in message
news:75adncJX-LvXNuLenZ2dnUVZ_vmdnZ2d@ez2.net...
My guess is the water pump itself has failed. Some cars use plastic
impellers on the waterpump, and the impeller blades wear out to the
point that water does not pump properly. One of the signs that this is
the problem is poor circulation through the Heater.
How many miles/kilometers on the engine? How many miles/kilometers on
the timing belt?
--
It's hard for me to say, the car belongs to the OP. Having said that, a
'99 is closing in on 7 years old and the water pump makes sense as a
place to start looking ...
It would help to know the stuff you asked about though.
I've never heard of the impeller blades in a Toyota water pump wearing
out.
|
Actually, I haven't heard of it on a Toyota either, but it is a common
problem for water pumps to have. Obviously, it requires a plastic impeller
on the pump, and I don't know if the OPs car has this or not.
| Quote: | A more likely sign of Toyota water pump failure is a leak from the seal.
If the water pump is driven by the flat side of the timing belt (I don't
know if the Avensis has a timing belt or chain) and the belt is worn or
stretched or improperly tensioned, then the water pump may not be driven
properly.
Other things to check - coolant condition and level, air in the cooling
system, coolant circulation, improper thermostat installation, radiator,
faulty coolant temperature sender or gauge, ignition timing, and head
gasket.
|
Head Gasket? Really? His only complaint was that the heater blows cold,
wouldn't the head gasket cause other problems that are more important than
the heater output?
PS
You suggested the water pump is driven by the timing belt, but my guess is
you meant to say fan belt (or serpentine belt). |
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hassan25
Guest
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| Posted:
Sun Nov 27, 2005 4:10 pm Post subject:
Re: toyota avensis overheating |
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Hi bro overheating on avensis are common problem, but they are easy to fix
if there is no major damage to the engine. This engine do have terible air
lock on them if you do not bleed the cooling system properly.you need to
bleed the system propperly first, and make sure that you are geting hot
air inside the vehicle befor changing any bit on your engine. if not you
can email us to let us know what you have done to the engine.
hassan |
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