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1991 Oldsmobile 98 Regency Elite 3.8L Upper Engine
we replaced the timing chain while we were replacing a missing cam magnet. we changed oil using a heavier grade and the pressure increased to over 20 lbs at idle and 50-60 lbs at 2000 rpm. we experienced a similar problem on a 1990 buick lesabre 3.8 with 270,3...
FIX posted 11/1/2000
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Related Documents & Media 
| VIN | 1G3CW53L4M |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Affected | Upper Engine |
| Conditions | Noise |
Message Closed w/FIX
Vehicle Data
1991 Oldsmobile 98 Regency Elite
| VIN | 1G3CW53L4M |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Affected | Upper Engine |
| Conditions | Noise |
Video