More dumb questions...

[xCOYOTEx]

Ok, my jeep has had a small miss after I bought it. Put new plugs in it, and that helped a little bit. I have some rocker arm/lifter noise as well, but nothing horrible. I might replace the injectors, but if I do should I go stock or is there a bigger one that fits in its place? I have heard people swapping (I think) 5.0 mustang injectors in the 4.0. Can I do the same to the 2.5? or is there a better injector for it? or should I just stay with the stock? And what are the main problems with the 2.5? I know they are decent motors, but are there any specific problems people have with them?
Thanks!!
Mark

 

[ChiXJeff]

Unless you're planning on hotrodding that 4banger, I'd stay with stock, or close to it. Might not be a bad idea to run an oil treatment/solvent during an oil change to see if you can free up whatever is sticking in the valve train. IIRC, on a 2.5l 4banger, you can replace the lifters WITHOUT pulling the head.

BTW, you might want to note what year you've talking about.

 

[xCOYOTEx]

Sorry, it is a 1994. No hot rodding of the 4 banger, just didnt know if the bigger injectors would give it a little more power and possibly better MPG. I plan to upgrade to a 6 cyl, but that is probably not until next spring unless the overtime fairy comes to visit. Just wanting this motor to run as good as possible until the motor swap.

 

[99SJ_Ex]

Meh, OBD1.

Just do regular oil changes, maybe the first 1 or 2 run a motor flush/c-foam/etc through it to clean out the junk. Tune-up: cap, rotor, plugs, wires and it should be just fine for a good time.

 

[altrocker1]

stay with the stock injectors...i don't think there is enough airflow in the 4cyl to justify bigger injectors. if it were me, i would just flush the stockers and call it good....save that money for a 4.0L