baby ed
NAXJA Forum User
- Location
- southern illinois
I just swapped a 4.0 out of a 98 xj into my 97. I swapped the throttle body, distributor, oil pressure sending unit, and coil off my 97 onto the 98 because the plugs didn't match on the 98.. Fired it up and its hard to start, idles rough, and it backfires terrible and will not rev past 2000 rpm...Im 100% sure the timing is right. I've checked it 3-4 X's now. I did notice today that I didn't hook the grounds that go on the dipstick tube back up. So I cleaned them and put back on... Still no difference. There is no check engine lights on, and I'm lost. Any help would be greatly appreciated.