- Location
- Virginia City, NV
So back story is I got a 97 two door 4x4 4.0 Aw4 for free. Obviously had some issues. I rebuilt the engine. New head and the things I will detail below. Issue is it takes a long time cranking to start. It has a new battery and its cracking at normal speed. I heard about the check valve in the tank so I tried a few times cycling the key several times before starting and no difference. It takes a good 5to 7 seconds of cracking to start. Fluctuating the gas doesn't seem to affect it. Once it starts it runs like a gem. Smooth as can be with great throttle responce. There is a slight dip in power through the middle rpm range 2500 to 4000 but it is still getting out of its own way. I'm thinking cps anything else I should be checking. It just passed smog but there was a spike in the nox at the 25mph vs 15mph. From 7 to 590 all other values were well within parameters. Also looking for some input on that.
List of things replaced within 500 miles.
Head from a 98 good condition replaced valve seals
One piston from the same 98 #1 cylinder
New piston rings
New main and rod bearings
New timing set
New radiator
New battery
Plugs(champions) wires cap and rotor
Air filter
All shift solenoid
Thermostat
Radiator cap
Master gasket kit
Any suggestions or direction welcome.
Thanks for your time.
List of things replaced within 500 miles.
Head from a 98 good condition replaced valve seals
One piston from the same 98 #1 cylinder
New piston rings
New main and rod bearings
New timing set
New radiator
New battery
Plugs(champions) wires cap and rotor
Air filter
All shift solenoid
Thermostat
Radiator cap
Master gasket kit
Any suggestions or direction welcome.
Thanks for your time.