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Old 08-17-2014, 09:49 PM   #1
Join Date: Jun 2014
Posts: 11
2.5 Oil smells like fuel

have a 2.5 pulled the dip stick and smells like gas pulled the injectors cleaned them up and replaced orings haven't changed the oil yet to see if it cured my problem was thinking checking vacuum? replacing o2 sensor?

1991 2.5 wrangler
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Old 08-18-2014, 08:33 AM   #2
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If you have a vacuum leak, then it should have a high idle.

As far as a bad O2 sensor, it would cause the motor to run rich, but not enough to put gas in the oil.

I would think that if you pulled the spark plugs they would tell you which cylinder has a sticking injector. Sounds to me like an injector is stuck open and just dumping fuel into that cylinder.

'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...
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Old 08-18-2014, 09:41 PM   #3
Join Date: Jun 2014
Posts: 11
pulled the injectors put a plug to them and when they were connected to power they all open and closed when connected and disconnected, pulled one of the plugs they don't look healthy aren't that old
1991 2.5 wrangler
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