Hi, I have a 2001 Supercrew, 5.4, 4R70W transmission. I washed the engine last weekend and immediately afterwards I noticed what felt like a miss, but only on acceleration. CEL came on and I had the code pulled. It's showing P1740, which as far as I can tell is a problem with the TCC solenoid circuit. I'm assuming water found it's way into a connector for the TCC solenoid, but I have no idea where the connectors are! Any help would really be appreciated.

 

Ok, turns out the TCC solenoid wasn't the problem (although I do need to change it). I put in a new set of COPs and she runs like a champ. I did read that elsewhere on the forum before I posted, but I was hoping the problem would have a cheaper solution. Guess I can't complain, I got nearly 280,000 miles out of the original ones!

 

FYI - https://www.f150online.com/forums/4481913-post4.html

... fer next time you clean the engine bay.

MGD