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Toyoya avalon, wont start after driving through a flooded street.

Posted by Anonymous on


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Posted on Jan 02, 2017


SOURCE: My 2001 Toyoya Avalon is overheating what could be the issues?

Make sure the electric cooling fans are coming on. If they are, you could have a bad thermostat and gasket. If the fans aren't coming on, you probably have a bad coolant temp sensor. Also, check your fuses, if the fans aren't coming on.

Posted on Dec 11, 2008

  • 37 Answers

SOURCE: flooded car

Living in Houston Tx I am used to floods.

It is important to know if the car died when you went through the flood and if you tried to restart it when you were still in the water.

If it died in the flooding and you tried to restart it you probably sucked a bunch of water in and you will need to drain and refill ALL the fluids ASAP and rehab all the electric connections that got wet.

If you got it out of the floodwaters before trying to start then you likely didn't get much water in your engine or tranny.

Tips for drivng in a flood:
But if you have to, and you are behind traffic or getting flooded because an SUV coming down the road floods you in its wake the only thing you can do is to try to keep the vehicle from dying by revving the engine. If someone is in front of you and you can't get away throw the tranny in neutral and feather the accelerator to keep the engine revved so it wont die.

Physics lesson: the greater the rpm the greater the positive crankcase pressure. This crankcase pressure is what keeps the floodwaters from invading your engine when it is running. When it is just sitting in the flood it isn't good, but the amount of water getting into your engine will be negligible and not really of concern- but you'd still want to change the fluids- especially brake fluids- which always is neglected after a flood and the most likely to be contaminated by water even if the car doesn't die.
Good Luck- keep me posted on how it goes & if you have more trouble after you flush and refill fluids. If this helps to fixya then please rate this solution.

The problem is when you try to start the engine while it is submerged, because this causes a vaccuum or suction into the crankcase through every gasket- which is the same suction forces that cause your fuel and air to get pulled into the throttle body for starting. If you did this then drain and refill all the fluids ASAP- the sooner the better. ATF is worse because you can't remove all of it and there are so many channels and clutch band fibers to get gummed up. Change it as quick as you can, replace the filters.

If you didn't try to restart it while it was in floodwaters then you probably have a fouled or shorted electrical connection. start under the vehicle and work your way up cleaning and checking your plugs and components- yes the starter too. Best case scenario- dirty contacts or blown fuses from shorts.

Follow the spark plug wires from the distributor to find the spark plugs.

Posted on Jun 21, 2009

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This is going to require far to much testing to tell you in general how to figure it out.

Generally with flooded vehicles, flood waters contain tiny particles called Silt, and they tend to short circuit everything the touch, even after they dry out.

That being said, the last flood vehicle I worked on was a 2009 Nissan Maxima, it ended up needing 6 modules just to be able to start the vehicle and check for other issues, I ended up with 7 hours labor figuring it out, and the customer spent over $3800 in parts after it was all said and done.

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Did you test the battery?

----IF --- the water is the (only) issue, you won't be able to
do anything yourself, without a couple decades of vehicle
experience,once things get really wet, you have big problems

When you drive thru water you could end up scrapping the car,
as most shops won't touch that type of work

What has to be done is go wire harness & all it's connectors
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Also have to check every fuse,every fusible link & may need
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I fail to see how long that would take or cost

If you get lucky, maybe only the starter has issues

The clicking is the solenoid trying to engage the starter,
but are there other items wet or fuses blown,check ALL fuses
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We seldom get the real story here or at a repair shop from
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which engine?

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tune up time, cold damp cause spark parts bad

oldest story in world. damp conducts, bad insulators do wet.

end result , bad spark.

flooding ? crank wide open throttle, (oper, guide, on start page.s...)_

check spark..,got spark to all cylinders


try test fuel, if not flooded,

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Sound like you have a bad alternator, poss bad battery too.If you can jump start it with a volt meter check voltage at battery should have above 13.5 volts, do this after you unhook jumper cables and engine running.If bad voltage reading replace alternator make sure you charge battery before starting engine with new alternator or it could damage alternator.If good voltage have battery check.Hope this helped.

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Has the gas tank been drained and let to dry out and then refilled with gas and a water dryer and the fuel filter replaced? If not then you are in for trouble still and this is why is will not run. You are getting fuel and spark. Which means that your fuel pump is working and the starter is fine. Ingnition could be your problem but I would do the gas thing first then move on

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My 2001 Toyoya Avalon is overheating what could be the issues?

Make sure the electric cooling fans are coming on. If they are, you could have a bad thermostat and gasket. If the fans aren't coming on, you probably have a bad coolant temp sensor. Also, check your fuses, if the fans aren't coming on.

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