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1991 Mercury Grand Marquis LS 5.0L PCV Puzzel
There is oil going in the intake by way of the PCV valve through the vacuum nipple in the #8 intake runner. (Plenum runner is coated with oil) We have installed 2 dealer PCV valves and filters. We rebuilt the engine (New Pistons). We removed the intake and the...
FIX posted 5/9/1998
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Message Closed
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Related Documents & Media 
| VIN | 2MECM75F2M |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | PCV Puzzel |
| Conditions | Oil in #8 |
Message Closed
Vehicle Data
1991 Mercury Grand Marquis LS
| VIN | 2MECM75F2M |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | PCV Puzzel |
| Conditions | Oil in #8 |
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