I have a 96 dodge grand caravan le it is misfing on # 3& 6 cyl I have replaced the iginitoin coil an wires &?

Question

I have put plugs & wires & igninition module on still not firing from the coil on the 3&6 cylinder. I have checked the cam sensor it works I need to know what too look for now. Thanks

I don't believe it is the injectors I am not getting a spark from the coil on the # 3 & # 6 post. The plugs will not fire they come out of the cylinders wet. they are not arcing.

Answer 1

The only thing other things are spark plugs and low compression or fuel injectors. Number 3 is in the center of the engine and #6 is at the rear, on opposite sides of the engine.

Answer 2

If you had this problem before you purchased the ign module & coil pack and still have the same problem, then replace the computer. The computer tells the coil pack when and which cylinder to fire on. Some of these computers lose their internal ground and there is nothing you can do to fix it other than replacing it. From your description this will fix the problem. The parts house will need the old computer for a core, make sure you disconnect the battery before the job.

Answer 3

I've been reading recently that the connectors associated with the cam position sensor, the crank position sensor and the coils have been defective, poorly wired, or just plain shorted out on many caravans and it's corporate twins.

Unfortunately, correcting the issues won't be easy. Go to a reputable mechanic who is comfortable with electrical wiring, and see if any shorts or open circuits can't be found.

Answer 4

Check to make sure that the wires are connected correctly if you have a 3.0 engine it will run wired wrong but will miss. if they are on right check the engine compression and see if the cylinders are within 10 percent. if they are all low that is ok but if some are low you have found yiour problem. if you squirt a teaspoon or two of oil in the cylinder and it raises the compressiojn you have bad rings if it doesnt the problem is in the top end,(head gasket burnt valves )

Answer 5

Fuel injectors are the next thing to check. You need to see if they are firing properly. You can listen for it with a automotive stethoscope or the low-rent way is to put the end of a really long screwdriver on the injector with your ear to the other end. Check all of the injectors and listen for any differences in the misfiring ones.

Answer 6

ok you have no spark leaving the coil so the condition of oyur plugs and wires are not even i the consideration right it is possible that you have lost the primary trigger for the 3 6 coil
this is assuming that you have the 3.3l

Answer 7

Two rear cylinders only missing?

Sounds like a vacuum leak causing a lean condition.
Fouled spark plugs?
Wires crossed?

Answer 8

I had that problem w/my Toyota. I had to replace the plugs also.