90 Camry -terrible hesitation & stuttering after rain or humid day

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Old 03 Jan 2006, 10:05 pm   #1 (permalink)
m Ransley
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Default Re: 90 Camry -terrible hesitation & stuttering after rain orhumid...

That is most asked question and 89-91 problem and the one I have to, The
coil under distributor cap gets oiled up from a bad O ring and gets
damp overnight, when it dries after 14-45 minutes of a warm motor its
oK, clean coil with alcohol. If that wont help look into plug wires, but
I bet it will

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Old 03 Jan 2006, 11:50 pm   #2 (permalink)
abc@zxc.com
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Default 90 Camry -terrible hesitation & stuttering after rain or humid day

Hi:
I recently picked up a 90 Camry with only 118,000 miles.
The car seems to be in good shape, and runs well, _except_ after a
rainy day or humid day.
Then there is terrible stuttering and hesitation, especially
when accelerating. If I let off the gas, the stuttering goes away.

Could I be getting water in my gas tank & line?

I would appreciate any suggestions on where to look. Maybe I
just need a new gas filter.....except that on most days there is
no problem at all. Just rainy/humid days.

Thanks for any suggestions.

dave
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Old 04 Jan 2006, 09:37 am   #3 (permalink)
Stubby
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Default Re: 90 Camry -terrible hesitation & stuttering after rain or humid...

m Ransley wrote:
> That is most asked question and 89-91 problem and the one I have to, The
> coil under distributor cap gets oiled up from a bad O ring and gets
> damp overnight, when it dries after 14-45 minutes of a warm motor its
> oK, clean coil with alcohol. If that wont help look into plug wires, but
> I bet it will
>

Check the ignition system for discharges (sparks or glow) in the dark.
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Old 04 Jan 2006, 11:30 am   #4 (permalink)
DSPL
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Default Re: 90 Camry -terrible hesitation & stuttering after rain or humid day

i've had the same problem with a 1989 and now an 1990... I never figured it
out... Seems to be a common thing... I park in a garage now so it doesn't
happen often anymore. Let me know what works for you...

<abc@zxc.com> wrote in message
news:98nmr1dknjc805ef34gt1uhmpgf9tspp6l@4ax.com...
> Hi:
> I recently picked up a 90 Camry with only 118,000 miles.
> The car seems to be in good shape, and runs well, _except_ after a
> rainy day or humid day.
> Then there is terrible stuttering and hesitation, especially
> when accelerating. If I let off the gas, the stuttering goes away.
>
> Could I be getting water in my gas tank & line?
>
> I would appreciate any suggestions on where to look. Maybe I
> just need a new gas filter.....except that on most days there is
> no problem at all. Just rainy/humid days.
>
> Thanks for any suggestions.
>
> dave



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Old 04 Jan 2006, 06:14 pm   #5 (permalink)
m Ransley
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Default Re: 90 Camry -terrible hesitation & stuttering after rain orhumid...

Everyone has coil issues on 89-91, Distributor O rings leak oil
eventualy, oil coats Coil , and water , moisture is atracted and shorts
it till its dried out. You cant see flashes, Coil is under the cap, Just
clean the coil, if it leaks bad replace O ring gasket

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Old 04 Jan 2006, 07:02 pm   #6 (permalink)
timbirr@mailcity.com
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Default Re: 90 Camry -terrible hesitation & stuttering after rain or humid day

This is a classic ignition coil problem. The part is 15 years old. I
don't believe you want to mess wit cleaning it all the time. Get a new
strong coil and your problem will most likely be solved.

If you want to be methodical about it, you can test your current coil.
Detailed in the Chilton's manual for the car, available at the library.
A new part is about $40, the replacement is pretty simple.... If you
don't want to do it yourself, I imagine an indy mechanic will charge
about $50 labor, but will probably charge you more for the part....

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Old 04 Jan 2006, 07:43 pm   #7 (permalink)
ZR
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Default Re: 90 Camry -terrible hesitation & stuttering after rain orhumid...

> Everyone has coil issues on 89-91, Distributor O rings leak oil
> eventualy, oil coats Coil , and water , moisture is atracted and shorts
> it till its dried out. You cant see flashes, Coil is under the cap, Just
> clean the coil, if it leaks bad replace O ring gasket


I had same problem on my 90 Camry. It's gone after cleaning up the coil and
the inside of the distributor. But I'm not sure about the distributor O ring
leaking though. I replaced the distributor O ring and it's still leaking oil
inside the distributor. I think the leak is from the distributor shaft
bearing/oil seal(?), and it's leaking inside the distributor. The O ring
only seals the outside shaft. I couldn't figure out a way to replace the
bearing/seal. The only way is to replace the distributor. A re-built
distributor costs about $200. I think I'll just keep cleaning it when it
happens. It's been almost a year now without problems.


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Old 04 Jan 2006, 10:19 pm   #8 (permalink)
m Ransley
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Default Re: 90 Camry -terrible hesitation & stuttering after rainorhumid...

Cleaning is easier and alot cheaper than replacing a good coil.
Distributor must be removed first. Second aftermarket coils are crap
Autozone said they get 1% back. It takes 15 minutes to clean. Probably
1.5 hr to replace at a dealer price I guess of 200$, and 400 by the time
you are done bending over. Clean and you can clean cap contacts and sand
rotor contacts also. Mine has lasted 1 year and all is still good, no
stutter, with rain the last 7-8 days and I park outside in wet shade.

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Old 05 Jan 2006, 09:30 am   #9 (permalink)
timbirr@mailcity.com
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Default Re: 90 Camry -terrible hesitation & stuttering after rain orhumid...

Gosh, even a dealer couldn't justify $400 for a new coil. When I
replaced two of them in a one year period (2001 on my Tercel and 2002
on my Corolla, Toyota wanted $45 for OEM and Napa wanted $29). I went
with the Toyota part, but the Napa was probably acceptable.

The swap itself takes less than 30 minutes.

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Old 05 Jan 2006, 11:41 am   #10 (permalink)
abc@zxc.com
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Default Re: 90 Camry -terrible hesitation & stuttering after rain or humid day

On 4 Jan 2006 17:02:35 -0800, timbirr@mailcity.com wrote:

> This is a classic ignition coil problem. The part is 15 years old. I
>don't believe you want to mess wit cleaning it all the time. Get a new
>strong coil and your problem will most likely be solved.
>
>If you want to be methodical about it, you can test your current coil.
>Detailed in the Chilton's manual for the car, available at the library.
>A new part is about $40, the replacement is pretty simple.... If you
>don't want to do it yourself, I imagine an indy mechanic will charge
>about $50 labor, but will probably charge you more for the part....


Thank you very much for the info.

abc

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