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W
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Discussion Starter #1
Hi,
Yesterday while I was driving home, my 2000 Corolla suddenly could NOT
be accelerated, I could hear the load noise made from engine when I
pressed the gas but the car would not accelerate. If I pressed the gas
gently, the car slowly accelerate, but when I stoped at red light, it
happened again and again. It took a while to drive home. Is it the
problem of MAS? I had MAS replaced around 70K mile and had the similar
symptom, now the car has 163K. thx.
 
W
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Discussion Starter #2
sorry. I check the dealer repair receipt, it appears that the crank
POS sensor was replaced instead, not MAS, so still is it the same
problem happens again?

On Jan 27, 10:51 am, "[email protected]" <[email protected]> wrote:
> Hi,
> Yesterday while I was driving home, my 2000 Corolla suddenly could NOT
> be accelerated, I could hear the load noise made from engine when I
> pressed the gas but the car would not accelerate. If I pressed the gas
> gently, the car slowly accelerate, but when I stoped at red light, it
> happened again and again. It took a while to drive home. Is it the
> problem of MAS? I had MAS replaced around 70K mile and had the similar
> symptom, now the car has 163K. thx.
 
P
Joined
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Discussion Starter #3
[email protected] wrote:
> sorry. I check the dealer repair receipt, it appears that the crank
> POS sensor was replaced instead, not MAS, so still is it the same
> problem happens again?
>
> On Jan 27, 10:51 am, "[email protected]" <[email protected]> wrote:
>> Hi,
>> Yesterday while I was driving home, my 2000 Corolla suddenly could NOT
>> be accelerated, I could hear the load noise made from engine when I
>> pressed the gas but the car would not accelerate. If I pressed the gas
>> gently, the car slowly accelerate, but when I stoped at red light, it
>> happened again and again. It took a while to drive home. Is it the
>> problem of MAS? I had MAS replaced around 70K mile and had the similar
>> symptom, now the car has 163K. thx.

>

You may have some type of fuel contamination. Did this begin after
refueling? If it is very cold where you are driving you may have a bit
of water in the fuel tank. Try the cheap fix first and buy a couple of
bottles of "dry gas" sometimes marketed under numerous names but it all
contains alcohol. It will mix with the water, if any, in your fuel
system and and allow it to be burned with the gasoline. You might want
to change the fuel filter as well. The vehicle may be experiencing fuel
starvation under load and the fuel filter would be the first and
cheapest point of diagnosis. Good luck.
 
W
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Discussion Starter #4
Yes, I did refill the tank the same day on the way home and the it was
coldest day at Langhorne, PA(about ~20 F).
I drove about 2~3 miles this morning with outside tempature 33F, my
car seems OK but not sure whether the problem will come back or not.
I'll try to buy fuel additives later. Still I am nervous about the
problem.



On Jan 27, 11:34 am, "[email protected]" <[email protected]> wrote:
> [email protected] wrote:
> > sorry. I check the dealer repair receipt, it appears that the crank
> > POS sensor was replaced instead, not MAS, so still is it the same
> > problem happens again?

>
> > On Jan 27, 10:51 am, "[email protected]" <[email protected]> wrote:
> >> Hi,
> >> Yesterday while I was driving home, my 2000 Corolla suddenly could NOT
> >> be accelerated, I could hear the load noise made from engine when I
> >> pressed the gas but the car would not accelerate. If I pressed the gas
> >> gently, the car slowly accelerate, but when I stoped at red light, it
> >> happened again and again. It took a while to drive home. Is it the
> >> problem of MAS? I had MAS replaced around 70K mile and had the similar
> >> symptom, now the car has 163K. thx.You may have some type of fuel contamination. Did this begin after

> refueling? If it is very cold where you are driving you may have a bit
> of water in the fuel tank. Try the cheap fix first and buy a couple of
> bottles of "dry gas" sometimes marketed under numerous names but it all
> contains alcohol. It will mix with the water, if any, in your fuel
> system and and allow it to be burned with the gasoline. You might want
> to change the fuel filter as well. The vehicle may be experiencing fuel
> starvation under load and the fuel filter would be the first and
> cheapest point of diagnosis. Good luck.
 
R

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Discussion Starter #5
<[email protected]> wrote in message
news:[email protected]
> Yes, I did refill the tank the same day on the way home and the it was
> coldest day at Langhorne, PA(about ~20 F).
> I drove about 2~3 miles this morning with outside tempature 33F, my
> car seems OK but not sure whether the problem will come back or not.
> I'll try to buy fuel additives later. Still I am nervous about the
> problem.
>
>


Since you mentioned that the engine made a loud noise, I doubt if it is a
fuel contamination problem, although an engine that will rev slowly but not
quickly can be a sign of fuel starvation.
--

Ray O
(correct punctuation to reply)
 
R

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Discussion Starter #6
<[email protected]> wrote in message
news:[email protected]
> Hi,
> Yesterday while I was driving home, my 2000 Corolla suddenly could NOT
> be accelerated, I could hear the load noise made from engine when I
> pressed the gas but the car would not accelerate. If I pressed the gas
> gently, the car slowly accelerate, but when I stoped at red light, it
> happened again and again. It took a while to drive home. Is it the
> problem of MAS? I had MAS replaced around 70K mile and had the similar
> symptom, now the car has 163K. thx.
>


What is the condition of the automatic transmission fluid (ATF) and when is
the last time it was changed?

If the ATF is dark brown or black or has a burnt smell, I recommend that you
get it replaced. The symptoms sound like a slipping transmission or
transmission in the incorrect gear
--

Ray O
(correct punctuation to reply)
 
P
Joined
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0 Posts
Discussion Starter #7
[email protected] wrote:
> Yes, I did refill the tank the same day on the way home and the it was
> coldest day at Langhorne, PA(about ~20 F).
> I drove about 2~3 miles this morning with outside tempature 33F, my
> car seems OK but not sure whether the problem will come back or not.
> I'll try to buy fuel additives later. Still I am nervous about the
> problem.
>
>
>
> On Jan 27, 11:34 am, "[email protected]" <[email protected]> wrote:
>> [email protected] wrote:
>>> sorry. I check the dealer repair receipt, it appears that the crank
>>> POS sensor was replaced instead, not MAS, so still is it the same
>>> problem happens again?
>>> On Jan 27, 10:51 am, "[email protected]" <[email protected]> wrote:
>>>> Hi,
>>>> Yesterday while I was driving home, my 2000 Corolla suddenly could NOT
>>>> be accelerated, I could hear the load noise made from engine when I
>>>> pressed the gas but the car would not accelerate. If I pressed the gas
>>>> gently, the car slowly accelerate, but when I stoped at red light, it
>>>> happened again and again. It took a while to drive home. Is it the
>>>> problem of MAS? I had MAS replaced around 70K mile and had the similar
>>>> symptom, now the car has 163K. thx.You may have some type of fuel contamination. Did this begin after

>> refueling? If it is very cold where you are driving you may have a bit
>> of water in the fuel tank. Try the cheap fix first and buy a couple of
>> bottles of "dry gas" sometimes marketed under numerous names but it all
>> contains alcohol. It will mix with the water, if any, in your fuel
>> system and and allow it to be burned with the gasoline. You might want
>> to change the fuel filter as well. The vehicle may be experiencing fuel
>> starvation under load and the fuel filter would be the first and
>> cheapest point of diagnosis. Good luck.

>

IMHO, you might want to buy a bottle of "dry gas" and keep it in the car
in case the problem returns. It may return as soon as cold temperatures
do. A bottle cost is usually less than a dollar. If the problem returns
and it is water, and you pour in the contents into the fuel tank, the
car should run normally in a few minutes. It's cheap insurance in the
winter. I keep a couple of bottles in my car and truck all the time,
just in case. Occasionally, some gas stations tanks are contaminated
with water and you can't tell until your car begins running badly.
 
W
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Discussion Starter #8
I have not checked the color of the ATF, but to my surprise, both of
my Corolla(2000 & 2001) have ATF exceed high mark on the sticks even
though outside temp is ~30F, not sure this is a sign of leaking of
engine oil or not. I will check the color of ATF soon.

What is the condition of the automatic transmission fluid (ATF) and
when is
> the last time it was changed?
>
> If the ATF is dark brown or black or has a burnt smell, I recommend that you
> get it replaced. The symptoms sound like a slipping transmission or
> transmission in the incorrect gear
> --
>
> Ray O
> (correct punctuation to reply)
 
R

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Discussion Starter #9
<[email protected]> wrote in message
news:[email protected]
>I have not checked the color of the ATF, but to my surprise, both of
> my Corolla(2000 & 2001) have ATF exceed high mark on the sticks even
> though outside temp is ~30F, not sure this is a sign of leaking of
> engine oil or not. I will check the color of ATF


The ATF level should be checked with the vehicle on level ground, parking b
rake applied, transmission in park, engine idling.

Leaking engine oil will not cause a high ATF level.
--

Ray O
(correct punctuation to reply)
>
> What is the condition of the automatic transmission fluid (ATF) and
> when is
>> the last time it was changed?
>>
>> If the ATF is dark brown or black or has a burnt smell, I recommend that
>> you
>> get it replaced. The symptoms sound like a slipping transmission or
>> transmission in the incorrect gear
>> --
>>
>> Ray O
>> (correct punctuation to reply)

>
 
W
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Discussion Starter #10
I was aksing about leaking engine oil in previous thread for my 2001
Corolla, somebody suggested that oil may leak into transmission system
because the engine oil keeps disappearing. I am sure whether he meant
to leak into ATF system or somewhere else.

On Jan 29, 2:10 pm, "Ray O" <rokigawaATtristarassociatesDOTcom> wrote:
> <[email protected]> wrote in messagenews:[email protected]
>
> >I have not checked the color of the ATF, but to my surprise, both of
> > my Corolla(2000 & 2001) have ATF exceed high mark on the sticks even
> > though outside temp is ~30F, not sure this is a sign of leaking of
> > engine oil or not. I will check the color of ATFThe ATF level should be checked with the vehicle on level ground, parking b

> rake applied, transmission in park, engine idling.
>
> Leaking engine oil will not cause a high ATF level.
> --
>
> Ray O
> (correct punctuation to reply)
>
>
>
>
>
> > What is the condition of the automatic transmission fluid (ATF) and
> > when is
> >> the last time it was changed?

>
> >> If the ATF is dark brown or black or has a burnt smell, I recommend that
> >> you
> >> get it replaced. The symptoms sound like a slipping transmission or
> >> transmission in the incorrect gear
> >> --

>
> >> Ray O
> >> (correct punctuation to reply)- Hide quoted text -- Show quoted text -
 
R

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Discussion Starter #11
<[email protected]> wrote in message
news:[email protected]
>I was aksing about leaking engine oil in previous thread for my 2001
> Corolla, somebody suggested that oil may leak into transmission system
> because the engine oil keeps disappearing. I am sure whether he meant
> to leak into ATF system or somewhere else.
>


That suggestion probably came from me ;-)

The bell housing is a hollow bell-shaped shell at the front of the
transmission where it connects to the engine. The torque converter sits
inside the bell housing. If the engine's rear main seal is leaking, then
oil can leak into the transmission bell housing, but it would pool at the
bottom of the bell housing will eventually leak out it would not actually
mix with the engine oil.


--

Ray O
(correct punctuation to reply)
 
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