96 5.0 Timing problem
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Joined: Dec 2003
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From: Groton, CT
96 5.0 Timing problem
Posted this problem on the Bronco board, not much in the way of nibbles, so I thought I would give this a try on this board.
This problem is a new one.
While troubleshooting another problem, I decided to check my base timing. I have not done this before on this Bronco, although I have done it many times before on my previous and other folks Broncs.
I have a MSD 6A, so I disconnected the MSD box and hooked up my stock ignition to get a more true reading. Started the Bronc to make sure everything was working properly. Started up and ran just fine.
Hooked up the timing light to make sure all was well on that end, light working fine but timing mark no where in sight. Shut it down and pulled the spout. Started up and Bronc running like a couple of cylinders were not firing. She started and ran, but definately a serious problem. Re-installed spout, truck runs fine. Pulled spout, same symptoms. It would appear that #1 cylinder is one of the cylinders not firing, as the timing light will not work with the spout pulled and the rig is misfiring.
I have never seen this one before, and cannot figure out why she would stop firing on all cylinders with the spout pulled. Pulling the spout should only disable computer controlled advance, not cause what I am seeing.
Any ideas?
This problem is a new one.
While troubleshooting another problem, I decided to check my base timing. I have not done this before on this Bronco, although I have done it many times before on my previous and other folks Broncs.
I have a MSD 6A, so I disconnected the MSD box and hooked up my stock ignition to get a more true reading. Started the Bronc to make sure everything was working properly. Started up and ran just fine.
Hooked up the timing light to make sure all was well on that end, light working fine but timing mark no where in sight. Shut it down and pulled the spout. Started up and Bronc running like a couple of cylinders were not firing. She started and ran, but definately a serious problem. Re-installed spout, truck runs fine. Pulled spout, same symptoms. It would appear that #1 cylinder is one of the cylinders not firing, as the timing light will not work with the spout pulled and the rig is misfiring.
I have never seen this one before, and cannot figure out why she would stop firing on all cylinders with the spout pulled. Pulling the spout should only disable computer controlled advance, not cause what I am seeing.
Any ideas?
