Engine Mis-fires on acceleration
#1
06-13-04, 03:15 PM
Join Date: Oct 2002
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Engine Mis-fires on acceleration
1994 Plymouth Grand Voyager 3.3L V6
engine "misses", sputs, and backfires on normal acceleration. Very slow acceleration reduces or even eliminates the symptoms. Engine gauges are normal; operating temp and oil levels normal; engine does not smoke. Sputting stops when idling, or when higher speed is reached.
Any ideas what this could be? Thanks!
rd
engine "misses", sputs, and backfires on normal acceleration. Very slow acceleration reduces or even eliminates the symptoms. Engine gauges are normal; operating temp and oil levels normal; engine does not smoke. Sputting stops when idling, or when higher speed is reached.
Any ideas what this could be? Thanks!
rd
#2
06-13-04, 03:46 PM
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The problem is definately in the secondary ignition system. The ignition wires are the most likely but a cracked plug will do the same thing. I'd just replace the plugs, wires and cap, rotor if it has one.
#4
06-16-04, 12:14 AM
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Just wanted to post an update. I changed the plugs and plug cables as you suggested. Everything is working great now. Thanks for the great help!
I examined the old plugs when I pulled them and they looked good - no abnormal coloring or fouling. I did notice however that the plug electrodes were very worn, causing the gap to increase. The cables looked OK but I changed them as you suggested anyway. I also noticed that the fuel filter was original so I changed it as well. Things are running very smoothly now.
Again, many thanks.
rn
I examined the old plugs when I pulled them and they looked good - no abnormal coloring or fouling. I did notice however that the plug electrodes were very worn, causing the gap to increase. The cables looked OK but I changed them as you suggested anyway. I also noticed that the fuel filter was original so I changed it as well. Things are running very smoothly now.
Again, many thanks.
rn
