Originally Posted by skeeter
Fuel filter, air filter, clogged fuel lines.
BTW, how do you time a 98?
Air Filter is brand new and the fuel filter shouldnt be replaced unless you suspect fuel contamination but, the fuel pressure is solid...
To Time a 98 4.0 inline 6
1. Turn the crankshaft with a large socket attached to the balancer hub bolt threded to the front of the vibration dampener wheel.
2. Locate top dead center (TDC), highest point the piston reaches, of piston 1
a. remove spark plug #1 insert a length of wood or plastic (not metal) into the spark plug socket.
b. start cranking the hub bolt while watching the wood. You want the wood to rise out of the spark plug socket, indicating the piston rising. Make sure the wood doesnt become pinched or lodged inside.
c. Next find the notch located on the inside lip of the vibration dampener
d. get a flashlight and a rag, just behind the vibration dampener at about 1 o'clock you will find timing marks (you will need a flashlight to see even in broad daylight) 8|||4|||0| align notch to zero, this is TDC for piston 1.
3. next remove distributor cap and see that the rotor is pointing at the #1 piston for the fireing order, if it is not you will need to adjust the distributor until rotor points at 1 (look on the distributor cap for a 1 indicating the #1 piston)
crack a beer your done
be careful timing yourself for the first time this is how I caused my problems with the catalytic converter. You dont want your enginge starting and misfireing too many times it is hard on the engine and can lead to other issues.
hope this is helpful please respond with any tips or suggestions to these instructions.