Saturn Engine >> OIL CONSUMPTION
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Saturn Engine >> OIL CONSUMPTION
Oil Consumption On
1990-92 GM 1.9L Saturn Engines
AERA members have reported instances of oil consumption on 1990-92 GM 1.9L Saturn engines. GM considers excessive oil consumption on this engine to be more than one quart of oil (.95 liter) per 3,000 miles (4827 km). This condition may result from oil passing by worn valve stem seals into the combustion process.
If cylinder compression values are within the normal range of 185-205 psi (1,276-1,344 kPa) and valves are not damaged, installing new seals Part #21006516 should solve this problem. It is also possible to install new valve seals without removing the cylinder head from the block with the proper tools.
If cylinder compression values are lower than normal, performing a cylinder leakdown test may indicate further engine disassembly is required.
Another consideration for oil consumption is a problem with the positive crankcase ventilation system, which is described in AERA Technical Bulletin TB-791.
The AERA Technical Committee
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