Blowback....
- Thread starter JeeperG
- Start date
JeeperG said:
No.
That's where it will come out if your pcv/ccv is bad. If you have a newer 4.0 it is just behind the throttle body. It's a little metal valve that has a vacuum hose connected to it. Just get a new one (they're good to do as maintenance anyway) from checker (or where-ever) and then you will know what it looks like.
It has to be the CCV
I found this in a google search.
"This happens on vehicles when the PCV valve is stuck. Jeep does it differently. There is no "normal" PCV valve, Jeep has a CCV hose set that gets clogged. Don't try to clean it, buy a new one (it's cheap). Your Jeep dealer knows exactly what it is.
It is a set of two bundled hoses. One coming from the rear rubber grommet on the top of your valve cover and the other going to the MAP sensor. They come as a taped together set.
Do yourself a favor and buy a new rubber grommet that it pushes into, also. Old ones get rock hard and sometimes have to be cut to get the old hoses out.
Have fun!"
Sounds like this is my problem.
JeeperG
I found this in a google search.
"This happens on vehicles when the PCV valve is stuck. Jeep does it differently. There is no "normal" PCV valve, Jeep has a CCV hose set that gets clogged. Don't try to clean it, buy a new one (it's cheap). Your Jeep dealer knows exactly what it is.
It is a set of two bundled hoses. One coming from the rear rubber grommet on the top of your valve cover and the other going to the MAP sensor. They come as a taped together set.
Do yourself a favor and buy a new rubber grommet that it pushes into, also. Old ones get rock hard and sometimes have to be cut to get the old hoses out.
Have fun!"
Sounds like this is my problem.
JeeperG
BBowski82
What are you looking at?
- Location
- Haubstadt, In
JeeperG said:
Man, I wouldn't jump at rings first...if anything possibly valve seals. What you need to do is (replaced the CCV first) and if you still have a concern, do a simple leakdown test, this will tell you what/where is letting oil into the combustion sequence.
This problem wouldn't be contributing to my hesitation off the line would it.
Not that I am racing or something but when I make a left turn in front of a car or pull out into a street with people coming at higher speeds behind me it kinda almost bogs out for a split second then kicks in.
Or maybe the Air filter is clogged enough to mess with the air, fuel mixture?
Hmmm I dunno
JeeperG
Not that I am racing or something but when I make a left turn in front of a car or pull out into a street with people coming at higher speeds behind me it kinda almost bogs out for a split second then kicks in.
Or maybe the Air filter is clogged enough to mess with the air, fuel mixture?
Hmmm I dunno
JeeperG
BBowski82
What are you looking at?
- Location
- Haubstadt, In
JeeperG said:
First off, if the ccv is stuck open then you are burning oil. Maybe not in quanities that you really notice....but still burning it. And yes, fouled plugs can definitely cause a hasitation, pull the plugs and check their condition. B
Plugs should be good.
But I will check them.
I don't drive the jeep alot anymore.
I replaced wiring, plugs, cap, rotor, everything less than a year ago. I put a header on and it and after doing so it was touching my Crankshaft positioning sensor wire, burned through shut down the whole Jeep. Took me a bit to figure that one out after replacing everthing.
JeeperG
But I will check them.
I don't drive the jeep alot anymore.
I replaced wiring, plugs, cap, rotor, everything less than a year ago. I put a header on and it and after doing so it was touching my Crankshaft positioning sensor wire, burned through shut down the whole Jeep. Took me a bit to figure that one out after replacing everthing.
JeeperG
check here and here for some good information on blow by. this pertains to the 4.0 but it may help you in finding out what is wrong.JeeperG said:
It should be the CCV tube. There is oil under the valve cover all the time to lube the rocker arms, so something is causing it to be sucked up the tube. A cheap thing up can try is to cut the tube and put in a pcv valve in the cover by buying an air breather gromet so the pcv can fit and a peice of ruber hose to connect the pcv to the tube.