Aboutautohelp Expertise On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.
Experience Held over 15 GM certifications prior to retirement in 1989.
Organizations Prior to retirement held several ASE certifications, numerous Factory certifications.
Question my Cadillac is a 1989 brougham 5.0 litter and is carburetor, is not idling right is to high when in park and to low of idle when in gear how can i fix the problem
Answer IS or HAS the CHECK ENGINE light on the dash ever illuminated while driving the vehicle.
The fault is most likely a fault in the Throttle Positioning Sensor (TPS) and or a fault in the Idle Speed Control motor (ISC).
You will need simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.
