91 Camry Runs Rough

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Old 16 Oct 2005, 10:55 pm   #1 (permalink)
Mel
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Default 91 Camry Runs Rough

Hi to all

I have a 1991 Toyota Camry, 4 cylinder automatic. When the outside
temperature is colder than 50 F, the engine needs to run for about 30 mins.
before it runs smooth. After that it is ok. I can park the car for several
hours and when I start it up, it also runs ok.

1. I have had this problem for several years. The dealers can't seem to
find the time to let the engine cool enough to see the problem. The
computer does not show any error codes.

2. The thermostat is working ok and has been replaced as part of normal
maintenance.

3. The coolant temperature sensor on the front of the engine was replaced
and it did not help.

4. The spark plugs, wires and distributor were recently replaced to resolve
an engine miss problem. The repairs had no effect on the rough engine
problem.

5. The injectors were cleaned several times as part of normal maintenance,
but it did not help.

6. I think this problem started after the car had 100K miles on it. It now
has 200K (all freeway) miles and the problem has not improved or worsened.

Has anyone else had this problem? We like the car but the vibration from
the engine is annoying.

Tks much

Mel


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Old 18 Oct 2005, 09:13 am   #2 (permalink)
m Ransley
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Default Re: 91 Camry Runs Rough

A normal problem for a 87-91 with coil inside the disributor, if it goes
away after it has sat warm for apx 30 min. Check the cap it could be
loose alowing in air and moisture. The distributor oil seal leaks a bit
contaminating the coil so it arcs when it is warming up and is fine
after 30 minutes. Remove cap and clean coil with alcohol, spray
everything inside since the coil is buried with electronics cleaner,
trying hard to get behind the coil , since that is possibly where the
contamination is worst from the oil seal. Replacing the coil means
pulling the distributor, a big job. If wires and cap are a few years old
, replace them with OEM Toy, and get the cap gasket and wire antiseeze
compound. My non Toy wires only last a few years. Might as well do the
plugs to. Also check the timimg as belts stretch, mine was retarded 3
degrees and I lost alot of power and 4 mpg.

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Old 23 Oct 2005, 09:23 pm   #3 (permalink)
Mel
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Default Re: 91 Camry Runs Rough

Thanks a lot Ransley!!

You were correct! I took of the distributor cap and sure enough it had oil
inside. I cleaned everything like you said, and now the car runs much, much
smoother.

I had several oil leaks fixed and the water pump and timing belt replaced a
few months ago. At the time, the dealer called and told me the O ring on
the distributor was also leaking. I told them to replace the O ring, and I
have the bill for the work. Well, if they replaced the O ring, then why
is there a lot of oil inside the distributor.

It is amazing to me that two different dealers could not figure this out. I
have had this problem for several years.

I need to take my 2002 Camry in for some free service, and I am going to ask
them why there was oil in the distributor after the replaced the O ring? I
am also going to show them your Email, and maybe you should charge them
"consulting" fees!

Thanks again

Mel


"m Ransley" <ransley@webtv.net> wrote in message
news:3520-435502F4-59@storefull-3138.bay.webtv.net...
>A normal problem for a 87-91 with coil inside the disributor, if it goes
> away after it has sat warm for apx 30 min. Check the cap it could be
> loose alowing in air and moisture. The distributor oil seal leaks a bit
> contaminating the coil so it arcs when it is warming up and is fine
> after 30 minutes. Remove cap and clean coil with alcohol, spray
> everything inside since the coil is buried with electronics cleaner,
> trying hard to get behind the coil , since that is possibly where the
> contamination is worst from the oil seal. Replacing the coil means
> pulling the distributor, a big job. If wires and cap are a few years old
> , replace them with OEM Toy, and get the cap gasket and wire antiseeze
> compound. My non Toy wires only last a few years. Might as well do the
> plugs to. Also check the timimg as belts stretch, mine was retarded 3
> degrees and I lost alot of power and 4 mpg.
>



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Old 23 Oct 2005, 11:25 pm   #4 (permalink)
m Ransley
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Default Re: 91 Camry Runs Rough

They did not replace the O ring if there is oil in there. Its like the
time I had my trusted mechanic replaced the thermostat, it did not warm
up any better and only years later doing it myself did it finaly warm
the motor quickly. My best one was an oil change, I checked the oil when
I got home, it was black after 3 miles, I drove back and he just handed
me my money, I guess he did not care. Or the time a different shop
flushed my brake fluid, by chance I was at a friends who had a lift we
raised the car and he saw only one wheel had the bleader cracked. Or the
time I took my car in for a oil change, they jacked it up wrong and
broke the brake line, and made me pay. Now if I could only determine
which jackass put 2 holes in the floor by putting the lift supports in
the middle! Moral of the story, trust nobody . Now I know why my dad
always said, watch them work on it.

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Old 24 Oct 2005, 08:49 pm   #5 (permalink)
Mel
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Default Re: 91 Camry Runs Rough and Key Fobs

Very sad, but I agree.

I work for a large company and I deal with vendors all the time. Same story
.... no one knows how to make anything work, but they all want you to buy
their product because it is "better".

The dealer told me they replaced the O ring, but that distributor comes out
as a complete assembly, and this is why it was not cleaned. Yea right ...
I told them I will wait a couple of months and if there is oil in there
again, they are going to replace that O ring again. They charged me $100
for that job!

When I was there I overheard a woman talking to one of the "service
managers". She was very worried because someone stole the key fob from her
car. They told her they needed to replace the alarm unit in the car,
because this was the only way to make sure the stolen key fob would not
work. I told them ... not correct ... I work with computers and know
exactly how the system works. I also pointed out that I just bought a new
key fob on Ebay for $20, and the instructions that came with the key fob
included four options:
- 1. Add a new key fob
- 2. Cancel an existing key fob
- 3. Cancel all key fob codes
- 4. Indicate how many key fobs are programmed in the system.

They were both too stupid to understand what I was saying. The service
manager commented ... why don't you help this women? I finally gave up and
decided that stupid people waste a lot of money. Last I heard they were
going to replace the controller in the car. I would guess that is a $500
job, verses 10 mins to clear the code.

I agree that logic says they do not know what they are doing. I am just
giving them rope so they can hang themselves. I am sure I will find oil in
the distributor the next time I check it. I know there was oil in there
before they changed the O ring.

Thanks again for all your help.

Mel



"m Ransley" <ransley@webtv.net> wrote in message
news:1583-435C6234-1027@storefull-3134.bay.webtv.net...
> They did not replace the O ring if there is oil in there. Its like the
> time I had my trusted mechanic replaced the thermostat, it did not warm
> up any better and only years later doing it myself did it finaly warm
> the motor quickly. My best one was an oil change, I checked the oil when
> I got home, it was black after 3 miles, I drove back and he just handed
> me my money, I guess he did not care. Or the time a different shop
> flushed my brake fluid, by chance I was at a friends who had a lift we
> raised the car and he saw only one wheel had the bleader cracked. Or the
> time I took my car in for a oil change, they jacked it up wrong and
> broke the brake line, and made me pay. Now if I could only determine
> which jackass put 2 holes in the floor by putting the lift supports in
> the middle! Moral of the story, trust nobody . Now I know why my dad
> always said, watch them work on it.
>



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