Some of the older vehicles did not have check engine lights but rather a PGM-F1 light. This indicated that a problem existed with the car and you could pull a code from the computer to help track the source of the problem.
The coolant level is an indication of internal problems with the car. This could include the possibility of a failing head gasket or a cracked head. These can have an impact on the ability of the vehicle to reach full potential on rpm or speed.
Thursday, March 8th, 2007 AT 3:56 PM