I have a 2004 F150 w/ the 4.6 and I went to the car wash Thursday and sprayed my engine. (like a dummy)I did leave it running though and it was a low pressure setting. It ran fine for 10 minutes and then it stalled on the way home near my house luckily on flat ground. I managed to get it started and limped it home. It will start after a few attempts but when I push down the gas pedal nothing happens at all. It is running very rough and the check engine lights are on (little wrench and little motor light). I just pulled all of the ignition coils and blew out the holes and all of the wire connections that I could find elsewhere with compressed air. Any suggestions? Thanks alot.

 

Pulling the codes will give you a good place to start.

 

Thanks for the reply but this is over my head I guess. If i'm thinking right you need to have a 'computer' to pull codes? I was hoping for some things I could try without much knowledge or cash. I do have a Haynes service manual and a semi-awesome set of tools.

 

you can get them pulled at autozone for free if your truck can make it there

 

+1, but if you can, save up for a used tuner. ive seen them as low as $100 used. youll get more power when you retune the computer and you can pull codes in your driveway and not have to limp your truck to autozone

 

You can also buy a code reader or scanner for as little as $35.-$50. and read your own DTC's. Plenty of good places online to decipher the Trouble codes. Well worth the money.

 

i agree with all the previous posts when i had my truck washed and detailed the *** that did it did exactly what i said and washed the engine compartment well he said it ran fine to get it out of his garage and to the parking lot but when i picked it up it ran like **** i got the same lights as you with a rough idle he ended up paying for 2 cops and he shorted one of the sensors and had to replace that it was about 350 for all the parts that may help but for you to start get a code reader and if you local auto zone or advance auto may let you borrow there reader with the proper collateral to run home and get the codes my local store does if they know you but then again my town had 500people we all know everyone

 

It's been discussed so many times about spraying an engine these days, and why you don't do it. There's just too many sensors under the hood on the late model vehicles.

Without an initial investment of a code reader (plugged into the OBD-II port under your steering column), you're only option is to have it towed to a repair facility. Even if you did buy a reader (or have the codes read), you'll still need some know how in what to clean, examine, or replace. Just tossing new sensors at the engine in hopes you get the right one(s) will get expensive. I'd suggest you tow it to the nearest reputable service center, or find a bubby who is knowledgable and has the tools to help you out.

At least they'll be working on a clean engine.

 

It took my Mechanic several tries to blow all the water out of the sneaky hiding spots and all of the sensors. After 3 days of 1 hour visits, he finally got all the water out, and it ran fine.

 

Yikes; three days of "off/on" labor....what did that cost you?