QuestionI am confused about the procudure for timing a 1986 Cadillac Deville. The manual states you should jumper between the A & B terminal on the ALCL, 1. should you unplug the terminal before you jumper? 2. what side of the terminal should you place the jumper on (small end or large end)? 3. at what point do you remove the jumper and plug the terminal back together (if indeed you unplug it in the first place). The manual indicates that the timing should be 10 degrees BTDC, each time that the timing is set and the engine is restarted it will hesitate on start up and back fire through the carburator...any tips?
AnswerYour NOT confused, Your just temporarily miss-guided.
OK, What you are referring to is the ALDL diagnostic connector of which is usually located under the dash near the steering column.
You will see a black plastic block with 12 square openings in it. These squares are labeled A,B,C,D,E,F,G,H,I,J,K,L.
these letters are stamped on the plastic housing.
Once you get the engine up to normal operating temperature, Turn off the ignition and locate this ALDL connector an using a small jumper wire, A metal paper clip works quite well. connect the A and B terminals together via the paper clip.
Start the engine and you will see that the CHECK ENGINE light is illuminated, This IS NORMAL.
Attach your timing light to the # 1 spark plug and your igniton timing mark show show 10 degess BTDC. One you have it at the specified specification, shut off the engine and remove the paper clip from the ALDL connector and your DONE.
I do not have a staff of people helping me answer your questions, I do it all by my self, Therefore, Due to being retired and a 15 year old computer on a dial-up connection, I do my best to respond to questions within 3 to 4 hours due to the volume of questions I receive on a daily basis. If you require a faster response you can e-mail me directly at the below e-mail address as I check it more frequently.:
meperganfortis@msn.com
autohelp
