2005 jeep liberty 2.8 diesel rocker arms broken after timing belt change.

what engines, many used world wide
can fix , engines , until that . is known.
gas or diesel? size, cylinder count.

Chances are that the wire that leads up to the latch of the seatbelt was pulled off by the vacuum cleaner nozzle. Have a look around the floor by the arm that holds the latch side of the belt for a loose or broken wire.

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cummins diagnostic

Look for your lower radiator hose located on left side of motor, after draining coolant there are 2 bolts 8mm head size to remove the plastic housing. Within that housing is your thermostat. To make access to the housing easier I removed the idler arm above it and serpentine belt. You'll need a 15mm to move the arm to loosen the belt, and a 13mm socket to remove the arm itself.

check rocker arms and lifters sometimes lifters get stuck until they fill with oil. partially collasped lifter may need cleaned .

plugs, boots, oil,oil filter ,fuel filter,air filter check rest of flid levels an belt or belts good luck

Sounds like a rocker arm is out of adjustment or one of the rocker arms are worn more than the rest. If you find one loose rocker arm and the rest are tight then the entire rocker assembly will need to be removed and the one rocker arm will have to be replaced. Thats on a V6 and V8 models . Now on the four cylinder you have to remove the timing belt cover,unbolt the timing belt and hold tension on it to keep the belt from jumping off the crankshaft gear. Remove the rocker arm cover and you will have to remove the cam to get to the roller rocker arms. There is alot of work to do to get this job done. If you do not have all the tools to do this with, then it would be better to take the truck to a mechanics shop for repairs. Hope this will help you.

A rocker arm is the arm that sits on top of the valve stem and connects to the push rods 'the push rods sit on the cam so when engine is running, the push rods go up and down in a timed sequence and with the rocker arms, open and close the inlet and exhaust valves. the rocker arm is located inside the valve(rocker)cover .If the rocker arm gets loose or comes out.
Check the nuts on the shaft which holds the rocker arms.either the shaft or nuts are got loose.They need to be tightened.Don't make it too tight or too loose.  Too tight,and they don't flutter right. Too loose,and they allow the rocker arms to wiggle out of whack. Other possibility can be  something is broken, bent, collapsed, or out of adjustment. 
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yeah it needs a new cylinder I see this all the time. The valve stem guide in the head drops and sticks the valve open the rocker and cam lose tension and thats why the rocker keeps breaking. Take the valve cover off the head that your have problems with. remove the rocker put a socket over the valve spring. gently tap the spring down without loosening the keepers. You will notice that the valve will not return to the closed position. I garuntee this is the problem u r have I hate to give u the bad news.

THE CRD DIESEL 2.8 LITER ENGINE WHICH IS MADE IN ITALY HAS A TIMING BELT.

when the timing belt broke it also bent the valves,hence the broken rocker arm. pull the head and see the valves are bent