2000 LeSabre w/3800 and 144K. Car was running fine. Next start came
with engine light and rough operation. Obviously missing power on some
cylinders; but still drivable. I had a scan done which came back as a
300 series code;* Misfire on multiple cylinders*. Any ideas what the
problem might be?
I'm running on 4 cylinders.
I pulled the coil wires and found the 2&5 coil dead. The other 2 coils
sparked when the wires were pulled; not 2&5. I installed a new coil
with no change. I switched coils positions and they worked fine. I
guess I bought a coil I didn't need. It seems as thought the middle
coil position is not receiving power. Can the ignition module power 2
coils and not the third? Any ideas? Thanks.
Yes. That exact thing happened on my 3.3 (same as the 3.8 but smaller).
When you replace the ign mod, make sure you use lots of heat sink
compound on the mod. Then use dielectic grease on everything else.
Heat is the big ign mod and coil killer.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.