bleitzell

Hi all, My 88 Cherokee started running rough last week, pulled the plugs and 1 &2 came out all dry black and sooty, rest looked normal. upon further investigation this morning when I pull the vacuum line off the check valve at the front of the fuel rail fuel dribbles out when running, this doesn't seem right to me and may be messing up the pressure, thoughts?
Appreciate your time

bleitzell

oops looks like that is the pressure regulator, thinking I need to replace that thing

bryanintowson

It's a quick and easy part to replace. Put a new one on my 92 and it made a little difference but the old one was really gunked up. Make sure when you replace the check valve, you also take the time to replace your fuel filter if you haven't do so lately.