The 89 Bonneville won't start!!!!
07-14-2006, 06:16 PM
#11
Senior Member
Certified GM nut
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Likes: 0
Received 0 Likes
on
0 Posts
Did you change the ECM or ICM? The ICM (ignition control module) is under the ignition coils. Check for power going to the ICM. Remove the wiring harness going the ICM & check for power at the P terminal of the wiring harness. P terminal is the Pink or Pink/Black wire at one end of the terminal. Key needs to be in run position while checking.
07-14-2006, 06:17 PM
#12
Member
Posts like a V-Tak
Thread Starter
Join Date: Mar 2006
Location: Irmo,SC
Posts: 36
Likes: 0
Received 0 Likes
on
0 Posts
I don't think it would be we replaced it a couple years back when it went bad soo got a fairly new one.....I let some more ideas come it...thanks for the help!
07-14-2006, 06:20 PM
#13
Member
Posts like a V-Tak
Thread Starter
Join Date: Mar 2006
Location: Irmo,SC
Posts: 36
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Technical Ted
Did you change the ECM or ICM? The ICM (ignition control module) is under the ignition coils. Check for power going to the ICM. Remove the wiring harness going the ICM & check for power at the P terminal of the wiring harness. P terminal is the Pink or Pink/Black wire at one end of the terminal. Key needs to be in run position while checking.
07-14-2006, 06:25 PM
#14
Senior Member
Certified GM nut
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Likes: 0
Received 0 Likes
on
0 Posts
If you have power going to the ICM then either the ICM or crank sensor is the problem. Did you check for spark from each of the coils. Could also be a bad ground at the ICM.
07-14-2006, 06:49 PM
#16
Senior Member
Certified GM nut
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Likes: 0
Received 0 Likes
on
0 Posts
If you don't have a test light or volt meter to check for power at ICM then make sure to check all the fuses. I think it'* the fuse panel above the passenger footwell. Fuel pump & ICM might share the same fuse.
Edit - Looks like it'* fuse #17 on the driver'* side for the 89'*
Edit - Looks like it'* fuse #17 on the driver'* side for the 89'*
07-15-2006, 01:45 AM
#17
Senior Member
Posts like a Corvette
Join Date: Jul 2004
Location: Winnipeg, Manitoba, Canada
Posts: 1,445
Likes: 0
Received 0 Likes
on
0 Posts
You can't change the coils on this car and not change the ICM. The magnavox DIS is one piece. The only way this could have happened is if you had done the delco swap already, and you replaced just the coils.
When cranking the engine, does the tachometer move at all?
When cranking the engine, does the tachometer move at all?
07-15-2006, 05:04 AM
#18
Senior Member
Posts like a Corvette
Join Date: Jun 2005
Location: Berkeley, IL
Posts: 1,596
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by captainmiller
You can't change the coils on this car and not change the ICM. The magnavox DIS is one piece. The only way this could have happened is if you had done the delco swap already, and you replaced just the coils.
When cranking the engine, does the tachometer move at all?
When cranking the engine, does the tachometer move at all?
07-27-2006, 06:27 PM
#20
Junior Member
Join Date: Jul 2006
Location: GL Michigan
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
I had a prob with the ICM as well, I could crank and get it to run really rough for about 2 seconds after cranking, backfiring and all. Turned out after checking everything else, the ICM got hot and had melted a little bit and would spark only when cranking. They check them at Autozones, the guy there was 100% sure it wasnt that but I had him check it anyways and it turned out bad. Kinda Costly too mine was 90 bucks with a lifetime warranty