1997 Cadillac Concours Repair Question
Topics covered: Coolant, Engine, Engine performance.
Mileage: No information provided.
Mileage: No information provided.
Asked on August 7, 2009
1997 Cadillac Concours head gasket
Engine Performance problem
1997 Cadillac Concours V8 Front Wheel Drive Automatic 63,000 miles
can a defective head gasket cause a cylinder to run lean and miss with out showing any other signs of a leak
1997 Cadillac Concours V8 Front Wheel Drive Automatic 63,000 miles
can a defective head gasket cause a cylinder to run lean and miss with out showing any other signs of a leak
Answer
Replied on August 7, 2009
It can definately cause it to miss, as the coolant doesn't burn. It would create more unburned fuel in the system, that may cause it to indicate rich. The coolant is also capable of contaminating the O2 sensor.