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Before anyone laughs no i didn't go washing my engine with a hose or anything ;)

I was driving home last night from my gf's and took the back streets, it was raining very heavily and the streets pretty much flash flooded.

i drove through a couple of large puddles and about halfway home my car started running rough (sounds more like WRX than usual). when i got home i popped the hood and checked out the engine bay - i had a small puddle under my pod filter but not touching and my radiator was wet but apart from that i couldn't find any other signs of water in there.

i know if you get water in your plugs or coil packs your car will run rough but going by the location of the water i don't see how they could get wet.

any thoughts on what else could make it run rough like this and if i should just let it dry out through driving etc or take it to a mechanic and get them to check everything out?

its an RB25DE R33.

cheers.

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I had that problem awhile back and it worried me 'cos it was so close to the pod filter.

Beat me for ages on where this dam water came from every time it rained (even it was a sprinkle) anyway along the engine neat the right hand front quarter panel there are a few holes (just above the pod filter where the bonnet close on top) I siliconed those holes and no water got in any more.

Does that make sense?

could it be possible ur intake sucked some water in?

possible yes ;) but i bloody well hope not, it's an Apexi type and i don't think it would have sucked much in there but unsure.

if it has then thats really bad right?

i was doing about 80 at the time on a highway and the lights were out and one whole lane was flooded and it sprayed up and over the car. its happened before but never affected my engine.

might have a bash at water proofing the engine bay too, thanks |PRESA|

might have to check the coils etc when i get home tonight.

cheers guys.. yesterday was just a bad day all up.

checked my engine bay at lunch, was all dry.

started it up and it idled rough again, let it sit for a few minutes and it returned to normal, drove it like that for about 5-10 mins and then it started running rough again.

am thinking that the air pod may be wet and sucking in moist air.

thanks..

you'll need a 16mm deep socket for the plugs, 8mm socket for the coils and the clamps on the cooler piping, pliers for the clamp the oil thing ontop of the front of the rocker cover, and a hexagon thing for the little screws on the rocker cover.

Joe

thanks..

you'll need a 16mm deep socket for the plugs, 8mm socket for the coils and the clamps on the cooler piping, pliers for the clamp the oil thing ontop of the front of the rocker cover, and a hexagon thing for the little screws on the rocker cover.

Joe

thanks for the info. much appreciated.

if u sucked up water in ur air intake it will either seize ur engine, or if there wasnt much it will eventually dry.

the wrx sound is being caused by wet spark plugs.. thats from experience.. i was running on 4cyl :|

Joe

ok.. .

i took the coils and plugs out today, also removed the intake etc - no water whatsoever anywhere that i could see.

however i did notice that spark plug number 5 seemed to have some white powder (like you get on battery terminals) on the end that connects to the coil so i thought i'd just clean that of with a bit of steel wool and it should be ok.

cleaned it up and then checked my coils, found that coil number five's spring or coil is no more! it has somehow corroded to nothing, so i guess its been running on 5 cylinders the past couple of days.

fingers crossed oonce i replace it all should be well again.

i called Nissan and was quoted $275 for a single replacement coil!?

don't suppose anyone has upgraded to splitfires and has any old coils in working order lying around? for an RB25DE

one final thing, while i was pulling all the pipes off that are in the way of the rocker cover i think i have disconnected one accidently and do not know where it goes to.

next to the radiator on the right is a small cylinder with 3 pipes coming out of the top, one feeds back into itself halfway down, another runs across the engine and into the intake plenum, the one i am unsure about is attached to the previous pipe and is marked 'purge' at the cylinder. it has a clip on the end so i assume it connects to something else and doesn't just 'purge' into the engine bay?

thanks to all again for the advice.

ben

just fix your coil... buy a new spring for it, and get a little drill set with a small sander attachment and sand away all the built-up shit on the inside of where the spring goes in the coil. shouldnt cost you much at all.

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