Misfire, but only the odd cylinders? - Toyota Nation Forum : Toyota Car and Truck Forums
Avalon 1st Generation (1995-1999) Specific discussion of the first generation Toyota Avalon

 
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post #1 of 4 Old 06-19-2019, 05:36 PM Thread Starter
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Misfire, but only the odd cylinders?

Currently checking out why the car has decided to have quite the misfire... enough to make it so the car can't get out of its own way.
The one thing I did was, due to quite a bit of rain, I drove through some decently sized puddles or standing water in the road. However I didn't notice any difference in drivability after going through the water. It wasn't until the next morning it showed up, but not major enough to set the engine light. Later on in the day I did get the engine light to come on...it would hardly accelerate. Codes were: P0300, 300, 301, 303, 305. So that tells me that, aside from the noticable misfire, cylinders 1-3-5 are not having fun.
I would like to see what you all think the issue is.
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post #2 of 4 Old 06-19-2019, 07:26 PM
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Being all on the same bank and appearing at the same time, it opens up a number of possible problems.

1. Hydrolock damage
2. Wet plug wires (older 3.0)
3. Jumped time
4. Bad/wet cam sensor
5. Bad intake gasket
6. Bad head gasket
7. Bad/wet O2 sensor

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post #3 of 4 Old 06-24-2019, 10:50 PM Thread Starter
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Or not...?

Well nevermind then. The next day it was back to normal. Pulled the plug wires and cleaned them off and cleaned some other lower connections and no more problems. This car is almost a tank.

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post #4 of 4 Old 06-24-2019, 11:58 PM
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Quote:
Originally Posted by Matt_aka_Dale View Post
Well nevermind then. The next day it was back to normal. Pulled the plug wires and cleaned them off and cleaned some other lower connections and no more problems. This car is almost a tank.

Something got wet that shouldn't.

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