Hey guys so I was cleaning my engine bay on my EX today in preparation to change out all my CAC boots. I covered the fuse box and the alternator and used simple green purple engine degreaser on everything. The engine was so filthy ugh. So I get it cleaned up and after i rinsed it off I try to start the engine and it starts fine but it starts lugging real bad and won't hold idle and stalls unless I manually rev the engine to about 1500 rpm. I tried 3 times and each time it did this. Then I remove my air filter cover in fear that I got water in it somehow and while there is a small amount of water under the air element the element itself and above the element leading into the engine is dry, so thank goodness for that. Then I wd40 all my electrical connections and what I think is a solenoid (cylindrical looking thingy under and slightly behind the engine bay cover) and I fire it up and this time everything is groovy. Except while it runs great now there is a "service engine soon" light on. Is this coincidence since I know I need an oil change or is this directly related to water getting onto something it shouldnt' have? Ideas?

Thanks!

 

use forscan or the like that can read ford codes and get the DTC error codes, that should tell you where the issue is.

 

ok so I ordered a wifi adapter for my android phone and I should get it tomorrow. I also got the free demo from forscan and it seems to install and load just fine so I will get the paid version as soon as my wifi module comes tomorrow. I will update asap

Thanks!

 

 

When you rinse the engine with older COPs installed, the water gets past them and fills the spark plug wells. This results in misfires.

 

Alloro, the OP references his CAC boots so he has a diesel rig.

COP's are on gassers only.

Stewart

 

Thanks guys for your info. Yes, I do have the 7.3 diesel....sorry I didnt make that more clear to begin with

 

It helps if you fill out your signature like most of us, so we know what vehicle you have and what mods you've done.

Stewart

 

Oh well, no one can be perfect all the time.

 

Yup, just read my posts and you'll see a dearth of perfection! I "quick read" and miss stuff all the time.

Stewart

 

ok so i think i filled out my sig correctly.....I thought I had before but apparently i confused the about me portion with my sig haha

 

Update on CEL: So I literally had around 15 errors as reported by Forscan but after the truck dried out for a couple days and after I cleared the codes and retested all were gone except error code: P1876 Transfer case 2-wheel drive solenoid open circuit i think? And this code wont clear out. I also had code: P1000 OBD systems readiness test not complete. I think I got that code because a test I tried to run on demo mode didnt finish

 

 

Out of curiosity, what were the other codes? So we can help figure out what makes your truck not run when the engine gets wet - it may happen again, in a less-convenient location, if not addressed.