MoparManiac
NAXJA Forum User
- Location
- Amherst, NH
I have searched and searched, and maybe I'm just another paranoid freak as this is my first XJ and Jeep ever. When I first start it up in the morning when it's cold, I get around 35 psi on my oil pressure gauge (inbetween the second and third hash marks, close to 40), and it seems to idle nice and smooth, maybe a little bit of knocking. However, as it warms up, my oil pressure is inbetween the second hash mark (20 I'd assume?) and the 40 hash mark, and the knocking is pretty loud at idle. When I get on the gas whether its under load or not, the noise goes away. I read that anything over something like 13 psi is normal for a 4.0 at idle, but I just wanted to see if I'm being paranoid or not, thanks for any thoughts or opinions, always appreciated. I've learned a lot about XJs from this site, and am still learning something new everyday.
EDIT: Forgot to mention, it's a '91 2-dr 4.0L AW4 NP231
EDIT: Forgot to mention, it's a '91 2-dr 4.0L AW4 NP231