LOL - I thought about it, then chickened out. I have too much running around to do today and tomorrow to be on the limp.

I may try it again on a quiet weeknight when there is less traffic to limp home in, and I can let the vehicle dry out at work the following day if it flares up again.

 

Yes - Aeroforce interceptor is what shows up when I start up the vehicle.

 

So would water in the mass air flow sensor cause this issue? that would be good motiviation to move the whole air intake setup. One of the things I have always been worried about is driving in heavy rain, but to date have only ever gacked in the carwash. I suppose I could also consider a SD tune like my old denali had, which would take the MAF out of the equation. Only problem is I will be selling the vehicle as soon as I get word that the 2012 SRT8 Jeep is ready for pickup, so don't really want to dump 700 bucks just for that. But this could be from 1 month to next summer....

I just don't like selling vehicles with known flaws to other folks. Cosmic Karma and such.....

But I will look into getting the MAF cleaned ASAP.

 

they have maf cleaner at autoparts stores. and i would get the air filter cover as well only 20 bucks

 

Certainly won't hurt - thanks for the tip!

 

Easy fix, especially at this stage in the game. Don't wash it all until a couple days before the Jeep shows up, park it indoors and then promptly list it on Kijiji. Problem solved!, lol. Let the next guy that buys it deal with it. Mind you I will make sure any of my friends looked for a procharged Escalade steer clear, lol.

Honestly I had similar issues on my old LT1 9C1 Caprice. I bought an air intake that relocated a cone filter right above the rad core support to draw cold air of course. Problem is that heavy rain or snow would soak the air filter at any given time. I ended up toasting my mass airflow sensor from that. Considering you only see this issue after washing the truck and not driving in the rain, this may be the problem looking where the filter is located. That all said is the air filter actually wet after you wash the truck?

If it is cleaning the MAF and a bag for the filter might cure the problem for the small time you have left with the truck anyhow.

 

Hey - mums the word, ok?

I felt the k&n ilter after finally got engine running on its own, and it felt dry, although as someone else had commented, it had been sucking in air for a while so had a chance to dry (that and underhood engine heat would help to dry).

 

Hmm, this sounds a little bit familiar...


On my 99 Silverado, I took it through the car wash and went really slow through the underbody spray at first.

The next day I drove it a few hundred miles, no problems. It sat for a day then I rented a u haul trailer and started on the way home. About 10 minutes into driving , it had no mid to high end power and the SES was on.


Took it in and it came up as running lean. Dealer said something about the intake manifold gaskets possibly leaking.

Problem then went away after a little bit of driving. I drove the few hundred miles back home with no issues.

Figured the truck had 100k miles and it would be a good time to replace the 02 sensors.

Well, when I went to unplug htem, the connectors (weatherpack) had water in them. Put new ones on, never had that problem with power again so I can only guess the water was causing funky 02 readings.

 

So I finally went for another car wash last Friday. I was nervous, so I went to a Bubbles, which is a local carwash chain. They use a combination of manual spray hose, hand wash, and mechanical wash. In short, a normal carwash.

I was nervous as I pulled away, but there was no problem. I did this on the way into work in case it did act up, so that I could dry it out at room temp for the day.

So one characteristic of the gas station wash, where I first had the problem, is that they had a wheel cleaner at the entranch, which I drove though fairly slow so that I could get a good water blast to get some dust etc off of my rims. It occurred to me that the exhaust tip was at a height where water could have shot up inside the exhaust system.

And the night when I last had the problem, even though I was shooting the water down at a 45 degree angle, I was giving the tip a fair bit of straighton spray.

So could it be that I was forcing water up the exhaust system inadvertently? I can't think that doing this would be a good thing?

Those are the two things in common from both incidents. I am off for three weeks after this week, so can do some more car wash experimenting (will return to the scene of the last problem and lay off of the exhaust tip cleaning, or at least cleaning of the tip from a direct (albeit tilted upwards) angle.

Pardon my ignorance here, but how far would water have to travel up the exhaust system to cause some havoc?

 

Probably all the way up to your narrowband o2 sensors which isn't possible if you have a normal exhaust. I don't think your exhaust has a thing to do with the problem.