Dont get spark on 3 and 5 cylinders

QUAKE

MEMBER
1997 CADILLAC CATERA
120,000 MILES

Tried replacing coil pack to car and still no spark, took to a chevy dealership and they said coil pack was bad, this was after I just replaced the original one, car has been setting for 2 years now because of this, I think it might have to do something with the traction control on the car because it started messing up just a few months before that where once it came on it wouldn't automatically go back off, you have to manually push button on dash to turn it off, also I'm not sure but when traction comes on the engine would just loose power to regain traction to the tires, possibly cuts off the 3 and 5 cylinder to do this, and now with it is now having the 3 and 5 cylinder not firing the engine acts and responds just like it would when traction control would kick on, don't know though need HELP also the car seems to have an problem with the interior climate control because in the summer time even with air conditioner on the interior still is pretty warm, the cold air blows out of the vents but warm air sometimes even hot blow out of floor vents THANKS for any info

1 Reply

HMAC300

MECHANIC
48,601 POSTS

Scan for codes first and check fuel pressure but misfires are hard to diagnose as it can be a lot of things. Check to see if your actuator is closing you'll also have to check if your heater control valve Is working all the time it may not be. The coil pak you replaced was it new coils or out of another car. It could also be the ignition control module. Have you checked fuses? Underhood like pcm fuse.