I plugged in my code reader and got p1335 which is faulty EGR valve I believe. replaced the valve and a couple days later my CEL came back on and Im getting the same code again p1335. can anyone help me.

 

The valve can be cleaned, I cleaned mine about 5x before eventually deleting the system. You could clean up your old one, then swap them and see what happens. Are you doing a lot of idling? Bad batch of fuel?

 

Did you see a lot of carbon when you replaced the EGR valve?

Anything wet in the intake?

 

there was a bit of carbon inside and yes it was wet , I cleaned it out as best as I could

 

A common cause of the P1335 is a leaky EGR cooler. If you saw moisture under the EGR valve, then I would start watching the coolant level, the exhaust for white smoke, and add a degas bottle pressure gauge.

 

A bit of carbon shouldn't be a problem. This isn't mine, but it's what mine looked like on the left.

 

Carbon and moisture (water, not fuel or oil) is a bad combination.
If the carbon showed up as little ***** or chunks (typically the chunks themselves are dry), it is even more indicative of a cooler leak.

It is not common for a new valve to have the P1335 code.

http://www.forddoctorsdts.com/articl...r-marbles-r33/

Hopefully this isn't your issue, but you should be aware of the possibility.

 

I think you're heading me in the right direction, the truck is losing coolant and I was trying to find out where the leak was coming from . At first I thought it was just condensation from the A/C until I checked the reservoir and it was low.I have a pretty good leak and it appears to be coming from just above the starter

 

Looks like an EGR delete is in order. Fortunately even I could do it with only instruction from youtube videos with no prior experience.

I bought a kit like this: https://www.ebay.com/itm/FORD-6-0L-E...elete+6.0.TRS0

Didn't use the block off kit, seemed pointless. Kept the EGR valve, just left it in so I would have a place to put the harness into. Can help avoid a CEL for the sensor as well.

 

I am certainly not trying to talk you into an EGR cooler leak, but diagnosis over the internet is not easy and symptoms/issues/solutions are not the same for everyone. Just wanted to inform and suggest further monitoring.

That said, an EGR cooler leak will leak internally, not externally.

If you see an external leak, that would be a separate issue, In the location you describe, it could be the EGR hose off of the EGR cooler, or a leaking block plug, or even a heater hose.

The easiest way to track it down, IMO anyway, would be to take off the Charge Air Cooler boots and pipe and pressure up the degas bottle to 15 psi. Do this by using the small hose from the radiator and teeing into it w/ a hose from a small compressor with a known good pressure gauge also attached.