Is installing new lifters in a 2003 4.0 hard for

Hi, I really would just take the vehicle to a garage, it is not very old and they could sort the problem out fairly quickly. I really would not expect tappetty/camshaft noises from a 4 yrar old car, there might be something more serious amiss than clacking valve.

GOOD LUCK


I have added a link to a site that might possibly be useful, see below

as they are hydulic you should not have to adjust them,if they are rattling,it's usually due to poor oil change history,try engine flush and you may have to remove sump afterwoods if the gunk blocks up the oil pickup,filters block and unfiltered oil then circulates throughout engine and makes lifters noisy,to check hyd lifters you need a "bleed down bar"to compress lifter and measure gap between rocker and valve,if it does have adjustable rockers then it's done with engine idleing with rocker cover off ,back off nut till it rattles,thentighen it down till it stops and then 1/4 more turn

Have the battery checked, sounds like you may have a bad cell

have some one remove the drive shaft and check the u-joints, sounds like you have one going bad.

your new fuel pump has a leaking check valve, alowing the gas to run back into the tank when parked.

http://cgi.ebay.com/TRANSMISSION-Jeep-Wrangler-4-0-2003-03-2004-04-115k-mi-/170503139323?cmd=ViewItem&pt=Motors_Car_Truck_Parts_Accessories&hash=item27b2c76ffb

The above is just an example found on Ebay, $399

likely two unrelated problems. If you have good oil pressure (usually around 40psi) your lifters are sticking or you have wear on lifters, cam, rocker pivots (pick one). Cure can be as simple as using marvel oil in each oil change or replacing whatever has worn. Front end should be thoroughly checked for wear, wheel balance should be checked, tires checked for broken belts etc. Again, change anything that show up as bad.

YES U CAN

1) If you want performance in the rain, you need an all season tire.
2) I had 31x10.5 on my Jeep.
3) The vibration could be a bad steering damper.
4) Dana rears are almost ablong shaped on the cover. The other is perfect round shape cover.
5) Tell your wife the Jeep is for her.

look under vehicle and make sure drive shaft going to back of truck is still there and connected. if it is there is a problem w/transfercase.