Saturn Engine >> ENGINE OIL IN THE COOLING SYSTEM ON 1.9L VIN 8 & 9 ENGINES
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Saturn Engine >> ENGINE OIL IN THE COOLING SYSTEM ON 1.9L VIN 8 & 9 ENGINES
Engine Oil in the Cooling System On
1991-97 GM 1.9L VIN 8 & 9 Engines
AERA members have reported engine oil in the cooling system on 1991-97 GM 1.9L VIN 8 & 9 engines. Only Saturn vehicles equipped with this SOHC engine may encounter this condition. Symptoms of this condition may include engine overheating. The owner may also comment on continuously adding engine oil to the crankcase.
The source of this condition may be located in the rear of the cylinder head at the number four and five camshaft journal bores and areas. Cracks located in
this area (See Illustrations Below) of the head may allow engine oil to mix with engine coolant. These cracks may have been caused by irregularities during
manufacturing of the cylinder head. Pressure testing of the cylinder head with the camshaft installed, may not always reveal a leak. Removal of the camshaft
is necessary to successfully pressure test this cylinder head.
AERA members have successfully repaired some of the cracks in the cylinder heads. If the cracking of the cylinder head is beyond repair, Saturn recommends
replacing the cylinder head. Replacement of the head has been covered under the normal Saturn warranty conditions.
Year Model Head Gasket Head Part Number
Part Number
1991-94 21008324 21008232
1995 21007332 21007138
1996-97 21007332 21006837
The AERA Technical Committee
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