I have a 2006 Jeep Grand Cherokee. I was told by an auto parts store that my Jeep with a 4.7 V8 has no PCV Valve. is this true? I've read that it's on the side of the fill tube ...nope nothing there. help??

the HO is a high output version of the 4.7. the differences are internal, the externals *should* be the same.

to be sure, though, call an auto parts store and ask them if the 4.7 regular and 4.7 HO use the same MAIN SEAL. this sill ensure that the regular 4.7 will fit a 4.7 HO transmission, as the main seal comes between the back of the engine and the front of the transmission.

which box,
A/T box
M/T box
transfer case box
RTM?
06 gc. gen3 WK car.
the fsm full is here free.
http://colorado4wheel.com/manuals/Jeep/WK/WK%20FSM/

read that, its all there, DL it while still free.

CHECK YOUR PCV VALVE FIRST IT MITE BE STUCK IF OK THEN YOU HAVE BAD VALVE SEALS OR VALVE GUIDES OR BAD PISTON OIL RINGS BUT TRY PCV VALVE FIRST HOPE THIS HELPS

The best place i have found to get parts at low cost is a salvage yard. I did the same thing on my 88 Comanche and the only place i found the parts where at a salvage or junkyard.

If your is like my 1995 jeep, it was mounted on top of the valve cover. I had to order from the auto parts store, a new grommet that holds the pcv in place. When I got the new one in, I cut out the old grommet, and pcv valve. Over a period of time, they will kind of melt together. It was a very cheap fix. and I'm sure there are no leaks. Hope this helps

is the check engine light on the dash if it is have it read to check code it will lead you in the right direction auto parts store will read it for free im not gonna tell you to start buying stuff you may not need i could of said buy plugs wires plugs fuel filter cap rotor pcv valve or you have a bad injector but that would be wasteing money and time if check engine light is on have code read to start you in the right direction

Change the pcv valve this will cause problems. You can get the eighth plug, put the socket on the plug and use a wrench that fits the socket to get it loose or out. It's a pain but necessary.
Randy

i know and it is nice

go to your local auto parts store and have them read the code most auto parts stores read the code for free

Hope this helps


http://www.scribd.com/doc/2641916/Jeep-WK-2006-Grand-Cherokee-MOPAR-Parts-Catalog