96 Cherokee
NAXJA Forum User
- Location
- Indiana
Lately I have been trying to figure out this running too rich problem and failed, so I made an appointment to take it into a shop. Last week I ran a can of BG44K through it and could tell no difference. Exhaust still smells nasty like unburnt fuel. Well tonight I had my son change the fuel filter, which has never been replaced since new. (now has 226,000 miles on it) So I notice that when the old fuel filter is turned up to pour gas out the exit hole, the gas looks clean. When I turned it the other direction the gas coming out of the intake hole is black-real black. So I took it for a 1 mile test drive and pulled it into the garage and got out while it was still running and smelled the exhaust. For the first time in several weeks it smells normal ! Could a dirty fuel filter have caused it to run too rich? I read several old threads on dirty fuel filters and did not see any mention of it.