changed cam & crank sensors - still no spark in any of the wiring to the coil pack - where is the "engine control module" on this car. can't find info online - please help
Buick Q&AAsk Your Question
1991 Buick LeSabre Question: my 1991 buick lesabre cranks but no start - no spark at all
Answer #1pushrod August 26, 2013, 04:28Master
The IGNITION MODULE is under the coil pack, the thing that ALL the plug wires go to.
Both module and coil pack needs to be replaced at the same time! This is most likely your trouble.
Reply1991 Blue Bomber, August 26, 2013, 11:10Rookie
thanks pushrod - thats where everything seems to be directing me...thanks for the confirmation
Answer #2goodguy August 26, 2013, 05:41Master
I would check the resistance on the coils first if they are ok then I would check the power going to the module if there is no power then I would check for broken wire or a bad pcm
Reply1991 Blue Bomber, August 26, 2013, 11:11Rookie
thanks goodguy - wires are old, i'll see to replacing with the module & coilpack
Answer #3Greg's Orange Auto (13627 Answers) , Orange, CA - (714) 361-9386globalhelper August 26, 2013, 06:25Master
AGREE WITH GOODGUY NAD PUSHROD
Reply1991 Blue Bomber, August 26, 2013, 11:12Rookie
yup - thats another confirmation - thanks to all you guys!
Replypushrod, August 26, 2013, 14:30Master