Car wash caused misfiring

[DJ]

So today I decide my car is filthy so I take it to a no touch car wash near my work. Pay my ten bucks and get the deluxe or whatever it's called. As I am pulling in a huge rush of water is sprayed under the car obviously causing smoke and it shuddered a little. Instantly turn it off when I get to the resting spot for the sprayers. Car starts fine but now under acceleration it sounds like a misfire and shudders pretty bad and it won't idle. I limped it home from work and walked across the street to grab a beer. Will start tearing into it tomorrow.

Anyone else ever deal with this?

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[1quick]

normally ignition relate, probably a plug wire or plug with a crack and it started arking when it got wet

 

[DJ]

I am betting a wire as we'll. I think it's low enough for the water to affect it.

 

[wolfe]

Your car has a 5.0 correct? Could be moisture in the cap of the distributor. I would check there and wires to start.

 

[DJ]

Yeah it is the 302. I would think wires before cap due to locations but both are good guesses. Beers tonight wrenches tomorrow.

 

[DJ]

The cap is also only a few months old.

 

[serb82]

Let it run at idle for awhile, it will dry it out.

 

[Turbocharged400sbc]

Let it run at idle for awhile, it will dry it out.

....and leave carbon tracks for much easier voltage leakage at any point in the future...

 

[DJ]

As I and some of you thought it was a wire. One wire was burnt from the header allowing it to arc when wet. Replaced with a stock one laying around for now and ordered a new set of Ford racing wires from American Muscle.

 

[Gone_2022]

Ignition or maybe even 02 sensors getting wet. I had this issue on the 99 camaro SS with Headers when it was lowered. Must have been a crack or defect in them. One bank would get went and start to short causing a super lean reading in the computer making it dump fuel. It sucked.

But prob what everyone else said. I just would get all the hard phantom problems lol

Just read above im stupid

 

[DJ]

Ignition or maybe even 02 sensors getting wet. I had this issue on the 99 camaro SS with Headers when it was lowered. Must have been a crack or defect in them. One bank would get went and start to short causing a super lean reading in the computer making it dump fuel. It sucked.

But prob what everyone else said. I just would get all the hard phantom problems lol

Read above