Airsmitty
NAXJA Forum User
- Location
- Newhall, CA
Here we go!hasta
1991 Cherokee 4.0 Auto 4x4
I'll do this in a Chronological Timeline style!
1. Made a custom air intake out of PVC pipe and a cone filter. Drove for 2 weeks, no problems. Valve breather instead of hose for the CCV.
2.Went to the sand dunes. After a couple days the jeep was low on oil and started ticking. Filled it back up with oil, ticking gone, and the smell starts.
3. Drove home, oil smell and smoke on freeway hills. Drives fine around town.
4. Noticed EVERY valve cover bolt was loose. Tightened. Added oil, forgot to put the oil filler cap back on :doh:. Tons of smoke and the oil smell on my way to a wheelin trip in the mountains. Replaced cap and added oil.
5. Wheeled for hours and hours in the mountains, no oil smell. On the way back, it came back. Little or no smoke.
6. Routed the front CCV into my air intake. Still the smell. Replaced the rear CCV valve and tube(it was clogged!). Smell persists. Put stock intake back on with all the hoses, still smells going up hills.
My next steps are to clean the engine and replace the valve cover gasket, but it's strange to me that it only smells while I'm going up hills on the freeway. If it's truly just burnoff, wouldn't it smell no matter what? Am i missing something?
1991 Cherokee 4.0 Auto 4x4
I'll do this in a Chronological Timeline style!
1. Made a custom air intake out of PVC pipe and a cone filter. Drove for 2 weeks, no problems. Valve breather instead of hose for the CCV.
2.Went to the sand dunes. After a couple days the jeep was low on oil and started ticking. Filled it back up with oil, ticking gone, and the smell starts.
3. Drove home, oil smell and smoke on freeway hills. Drives fine around town.
4. Noticed EVERY valve cover bolt was loose. Tightened. Added oil, forgot to put the oil filler cap back on :doh:. Tons of smoke and the oil smell on my way to a wheelin trip in the mountains. Replaced cap and added oil.
5. Wheeled for hours and hours in the mountains, no oil smell. On the way back, it came back. Little or no smoke.
6. Routed the front CCV into my air intake. Still the smell. Replaced the rear CCV valve and tube(it was clogged!). Smell persists. Put stock intake back on with all the hoses, still smells going up hills.
My next steps are to clean the engine and replace the valve cover gasket, but it's strange to me that it only smells while I'm going up hills on the freeway. If it's truly just burnoff, wouldn't it smell no matter what? Am i missing something?
Last edited: