TSB 11-1-5 Canister Purge Valve

Canister purge valve replaced under warranty

Hello,

i recently was nearly stranded when the idle became rough while driving and minutes later the check eng light came on and the truck when into a -fail safe mode- while onthe highway. Took about 3 hour to troubleshoot and replace the cpv. All is well. I am going to get a spare to have since this seems like a known issue with the tsb 12-03 i think

---------- Post added at 10:43 PM ---------- Previous post was at 10:40 PM ----------

Fyi
only early warning was the throttle fluctuated when i was parking and in reverse with my foot on the brake. Tach showed a swing upto 1800 rpms. I checked my floor mat, but not the case.

So I take it this is for 6.2L? Hmm seems to me these "better" 6.2L engines are having a few problems haha my 5.4L is running like a champ. Just changed the spark plugs too at 48,874.4 miles and run royal purple high performance synthetic oil!

It is an easy repair...

View attachment 14931
Remove these two bolts

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Remove this clip and electrical connector

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Install new one

Yes, I know it is covered under warranty. The problem is it normally does not throw codes, and $tealerships seems to have a hard time reproducing it.. To me $55 and 10 minutes is worth my time verses letting the dealership throw parts at it..

-Greg

I've been hearing a ticking sound for a while now but no trouble codes. Thanks GJ for the instructions, I like working on my own truck over letting a dealer do it.

So that is what the ticking sound is. I thought it might be the fuel injectors or something.

JimT said:

So that is what the ticking sound is. I thought it might be the fuel injectors or something.

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Jim I got mine replaced with no issue at all. Just tell them you have a ticking noise coming from under the hood some place. Let them tell you its the CPV and your good to go.

My 2012 has this issue

I have noticed this too. Does this effect performance?

Red said:

I have noticed this too. Does this effect performance?

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What will eventually happen it will fail and the truck will have a cold start issue (low rpm at idle, miss firing, and dying) and have a crap ton of unmetered air entering the intake causing a whole list of trouble codes...

-Greg (aka squatting dog)

Sounds crappy. I think I will have it looked at.