Misfiring after rain? Please help
#1
04-17-2012 | 03:39 PM
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Misfiring after rain? Please help
Intake was just soaked from the hard rain, left the engine lid open for the sun to dry and drives fine now.
Last edited by Djork; 05-14-2012 at 06:42 PM.
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#3
04-17-2012 | 04:25 PM
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Yeah unfortunately, I'm going to need to sell her because I'm planning on buying a house soon and can't afford both. Maybe pick up another 911 in the future.
Last edited by Djork; 05-14-2012 at 06:43 PM.
#6
04-18-2012 | 06:18 AM
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So I left for San Diego on Thursday night, left my car at my girlfriends house and returned Monday and drove it to work this morning. It's been sitting outside under a little roof but it rained hard over the weekend. This morning I'm hopping on the freeway and try to gun it in 3rd to merge then my car starts boggling and I see some white smoke coming out from the back so I immediately pull over and turn off the engine. I look under the car, no leaks or anything. I open the engine cover and it dumps all this water over my engine. So I let it sit there for about 10 minutes. I was worried that I blew something, I already did an IMS retrofit about 3 months ago. So I start the engine, kind of a rough idle but then slowly starts to idle normally again. I drive onto the freeway again slowly getting to 6th gear and get to work. During lunch I drive to the gym and at one point it was boggling again but then went away.
I'm scared to push the car now because I don't want anything to happen to the engine, since I'm about put it up for sale. Is this just due to the water getting to the engine? Has this happened to anyone else before? I have an aftermarket lid/wing so I'm assuming the water route isn't that great on this decklid. I also have an EVO intake. Should I be worried or will this eventually go away once the engine is completely dry? Right now I have it in the sun with the engine lid open. The last thing I need right now is this car to have any problems right when I'm about to put it up for sale. The car is a 2005 C2, with only 16k miles and has had the IMS retrofit installed 3 months ago.
I'm scared to push the car now because I don't want anything to happen to the engine, since I'm about put it up for sale. Is this just due to the water getting to the engine? Has this happened to anyone else before? I have an aftermarket lid/wing so I'm assuming the water route isn't that great on this decklid. I also have an EVO intake. Should I be worried or will this eventually go away once the engine is completely dry? Right now I have it in the sun with the engine lid open. The last thing I need right now is this car to have any problems right when I'm about to put it up for sale. The car is a 2005 C2, with only 16k miles and has had the IMS retrofit installed 3 months ago.
#7
04-18-2012 | 03:25 PM
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I don't know what the EVO airbox is like but on the OEM unit there is a place for water to drain out of it, like a piece of mesh screen. I had an issue similar to yours after a trip through the car wash. When I got home I pulled the airbox and discovered little bits of dead leaves that were covering up the mesh drain area. It apparently left enough standing water that upon hard acceleration a little got sucked in through the air filter.
I cleaned it out and the problem went away. I now yank the box, clean the airfilter and check for blockages every time I change the oil.
I cleaned it out and the problem went away. I now yank the box, clean the airfilter and check for blockages every time I change the oil.
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#8
04-18-2012 | 07:42 PM
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Thanks for the replies guys, it seems to be running well now. I haven't pushed it hard yet, but I think it's dried out by now so I'm going to give it a little test on my way home from work.
#9
04-18-2012 | 08:00 PM
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My bet is a bad designed engine lid which floods the air filter and an after market air filter without shielding. This is why I do not contest Weissach's original design.
BTW... most aftermarket air intake filters kill the cold air intake concept as they breath hot air around the engine.
BTW... most aftermarket air intake filters kill the cold air intake concept as they breath hot air around the engine.
#10
04-18-2012 | 09:29 PM
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Flashback to thermodynamics class... The energy produced by an engine depends on the temperature difference between the input and output. So this statement is true, if the aftermarket filter sucks in hot air. So it's not just the amount of air that matters, but its temperature as well.
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