06F150CFCT

Hey guys, I was wondering why my truck would have the stuttering/rough idle problem when its wet outside. Is there some kind of leak or hole in the COP? I am just wondering why this problem would onlyhappen when it rains/is wet outside. If it is raining outside or has rained and I go to start up the truck it has a rough idle and it sputters and coughs when accelerating. It goes away after awhile but its weird that it happens only when its wet. Any help would be greatly appreciated. I figure its the usual plugs/COP problem but not 100% sure and figured it wouldn't hurt to ask. Thanks.

ToughFX4

Fuel pump driver module,gets wet and corroded and truck runs bad and eventualy won't run. Located above spare tire on rail. I'd look at that first.

06F150CFCT

ToughFX4,
How would I go about checking to see if it's bad or not? Would it visually look like its shot or is it an electrical connection that would be bad? I have never messed around with any of the fuel delivery system components.

ToughFX4

Its made out of aluminium and sits on a steel frame rail and those two metals cause a reaction and you will see corrosion on the outside by the rail. I had to put a new one on my 08 f150 and it was all corroded in the inside. I don't know how it ran. I'd pull the part and open it up. New ones come with spacers to get it off the frame.

ToughFX4

Ford has them for 150.00 or check rock auto I think their about 100.00

06F150CFCT

Hey thanks a bunch ToughFX4, that makes a ton of sense. Since I am in Massachusetts and they use a superb (sarcasm) Calcium Chloride solution on the roads in the winter, i am sure that it tore it to shreds under there. I will check that tomorrow and go see if I can get a new one. It's funny because when I brought my truck home for the first time in Feb of 2011, it just shut off going down the highway and it was slushy and wet out. This now makes complete sense as to what the problem was/or could have been. Just weird that it is now manifesting itself almost a year after it first gave me problems. Anyways, I really appreciate the help and will find out tomorrow if it is in fact the problem.

18_F-150_XLT_Screw

iTrader: (1)

Here's a link on how to replace it....http://www.f150online.com/forums/art...placement.html

06F150CFCT

^^^Perfect. Thank you very much.

06F150CFCT

ToughFX4, you had to be right. This is what my old fuel pump driver module looked like when I took it off and wire brushed it:


Huge hole on the back and corroded all over.

Here's the new one on the left and old one on the right.



After I took it out for a drive it didnt hesitate at all when accelerating in the high rpms like it did before. When it rains out next I'll have the real test but I am certain that was my problem. Again, ToughFX4 thanks for pointing this out as it has saved me many more countless headaches trying to figure out what the problem would have been.

06F150CFCT

07 F150 XLT SCAB, Thanks for showing me that how-to as I replaced it in under 30 mins painting and everything with the help of that link. Overall, it was very easy to do. It just sucked it was 30 degrees out and very windy today. Oh well, worth every second to get the problem fixed.