CP4 Question

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Nov 29, 2021 | 10:34 AM

#31

riverratrusty

Tuned

Joined: Mar 2020

Posts: 322

Likes: 101

From: SoCal

Quote:

Originally Posted by Stranger_Ranger

I never got more than a teaspoon out of a filter over the years between trucks and tractors until one time when I got the water in fuel light in a 2014 Ram (CP3) after I filled up and ended up having to drain it every couple of miles for an afternoon. Changed the rear filter twice and the front one once and it settled out and did fine for another 50K miles when I traded it in. Diesel fuel is fine until it isn't, so that is why I switched to the 7.3 gasser with the new truck.

But what you describe here is a one time event after tons of positive experience and it did not end with a high dollar repair. If fuel stations are letting that much water into their fuel they could just as easily be letting some other containment into the gasoline that could cost money.

Guess I have never been burned by this or personally known anyone who has. Plus I keep my fuel receipts for a while. Water in fuel = station's fault, I would then take appropriate action if there was a high dollar repair bill.

Nov 29, 2021 | 06:38 PM

#32

8 Fords

Thread Starter

5th Wheeling

Joined: Oct 2021

Posts: 49

Likes: 21

It doesn't take alot of effort to get on a creeper and turn that little yellow valve and drain a cup full. you don't have to drain the 2 quarts the filter holds, the water comes out first.I read the water capacity of the filter is 6.4 oz( not very much) and then very bad things happen $$$$$$$$$$ I ran heavy equipment for a living and we drained water filters weekly. Ya I know old jumbo 1000gallon tanks and all but some times right out of the fuel delivery truck and still got some water. If you wait for water in fuel light most likely its too late! Also job I had as a kid in the 70's gas station pump jockey, every night we had to stick the tanks to see how many gallons left.Had to put this green paste on the bottom foot of the stick. WHEN it turned purple it was water in bottom of tank,ALWAYS 3to 5inches. So if you see a tanker truck at the station stirring up the fuel don't stop.Look you can do whatever you want with your truck and I'll do mine but with this crap fuel and the known problems with this CP4 and the little bit of time it takes why not?

Nov 29, 2021 | 07:27 PM

#33

davidpacificnw

Laughing Gas

Joined: Mar 2018

Posts: 1,142

Likes: 307

Quote:

Originally Posted by 8 Fords

Bottom line I guess drain your water filter at least every 3000 mi. or so and run an additive for lubricity, I use Opti-Lube (read the test results) and keep your fingers crossed!!! Oh and yes I bought the extended warrenty for 2 g's.

just rolled 45k miles on my 2018 PSD. I've never drained the water myself. I have it services about once every 6k miles. The service interval light has never went on indicating it needs service. I've just always taken it in before it does. My question: how do I drain the water from the filter?

thanks

Nov 29, 2021 | 07:40 PM

#34

scraprat

Lead Driver

Joined: Jan 2002

Posts: 8,616

Likes: 4,697

From: Itinerant

Quote:

Originally Posted by davidpacificnw

Its not hard at all just go to you tube and look at a video easier to see than explain. Water settles to the bottom and if it's there you will see it.

Nov 30, 2021 | 10:40 AM

#35

8 Fords

Thread Starter

5th Wheeling

Joined: Oct 2021

Posts: 49

Likes: 21

It's covered in the owners manual Page 368 for 2020 trucks. Drain it into a glass jar and let it sit for a little while, if there is any water in fuel you will see it at the bottom. If you open it all the way 2 quarts will drain before it quits, only have to drain about a cup full. Also best to let the truck sit for an hour or so before draining. They are supposed to do it with oil change BUT DO THEY? I'll do it myself as long as I can get on the creeper!