Engine Fluttering

[Clay Henry]

I was talking to Marc the other day about my occasional engine flutter. When i get on it hard, it acts like it "flutteres" kinda like a miss. This happens at hight rpm mainly Also it idles a little rough sometimes. At idle the whole truck will shake kinda like when you have a bad spark plug on a gasser. Could this be the EGR vavle needs cleaning? You said it could be the turbo. I doesn't do it all the time and thats whats wierd. I have been told that I should pull the EGR valve periodically and spray it down with some Berrymans and clean it good especially since I"m running vegi oil cause that would cause more soot buildup.

[Clay Henry]

Okay, i havne't gotten a response to the yet but i decided to go out and pull the EGR valve and just see if it's really sooted up. I took the 2 bolts out but now i cant lift out out. Its there a trick to this? Does it lift straight up or do i need to twist it or something?

[mschn99]

twist and pull, they are a bugger to get out sometimes

[thesilverbullet]

the easiest way is with a ladys foot prybar, you turn the valve and put the ladys foot under one of the tabs and pop it up. A seal puller will also suffice, which is more readily available at the local parts store

[Clay Henry]

Well, i gave up an bolted er back on before i broke something. I twisted it real easy and then it wouldn't pull up so i just said screw it untill i heard from someone who knew.

[Tacomarunner]

Originally Posted by CHenry

Okay, i havne't gotten a response to the yet but i decided to go out and pull the EGR valve and just see if it's really sooted up. I took the 2 bolts out but now i cant lift out out. Its there a trick to this? Does it lift straight up or do i need to twist it or something?

How often do the egr valves have to be serviced/cleaned.

Thanks, Russell

[thesilverbullet]

There isnt really any set standard for it. Some of my customers who hot shot pull and clean about every 15K because they want to do everything they can to avoid down time. It doesnt hurt and will prevent build up causing obstruction in the valve.

[Clay Henry]

Originally Posted by Tacomarunner

How often do the egr valves have to be serviced/cleaned.

Thanks, Russell

I was told to do it about 20k miles.

[Worm Drowner]

I would make certain that all of your injectors are functioning properly. Your HPOP could be starting to go :censord: up as well. As dumb as it sounds, even low engine oil levels can cause injector stumbling. I know that one from personal experience. :whistle:

[Clay Henry]

Originally Posted by Worm Drowner

I would make certain that all of your injectors are functioning properly. Your HPOP could be starting to go :censord: up as well. As dumb as it sounds, even low engine oil levels can cause injector stumbling. I know that one from personal experience. :whistle:

Engine oil level is a good point and i should check it but I didn't yet.
I did go buy me a set of them big o water pump plyers and was able to pull the EGR valve and clean it. It was still a MF to get out but I cleaned it up and put it back it. It wasn't real built up with soot.... considering its the first one i have ever seen i guess and it has almost 30k miles on it. Also got me some good injector cleaner and doubled the dose in the tank...if a little is good, alot is better? Don't know if that stuff really helps but i'll give it a shot. Test will be in the morning. Has been starting hard and idleing rough. Then kinda acting like it was missing a little bit at highway speed. I"ll see in the morning how it goes and report back if anyones interested.
If no improvement is noticed, I"ll be checking the oil but it shoult be low, just changed it 1500 miles ago and it doen't leak anywhere so i discounted that idea.