[tater]

My '98 Durango has no:3 cylinder misfire only when when cold. I have changed the plugs and wires. any ideas?

 

[Izzy]

have your injectors checked.

 

[Almond Pale Ale]

cap/rotor old? some fuel injector cleaner as well

 

[tater]

I have also replaced the cap and rotor as well. I have not had the injectors checked. The durango only skips when cold.

 

[dodgefan360]

I run a pennzoil FI/Carb cleaner every two tanks of fuel. I wait til I have no more than 1/4 tank of gas left before I add it as the bottle states it can only treat up to 80L. Who knows for sure tho, so I make sure I have no more than 35L left before I add it. I ran it in my 2.5L dodge before it retired with over 280K. If the frame was still in good shape I would've replaced the brake lines, but I sold it off instead. Engine was still in great shape - changed the oil every 2500miles! That car saw 14 winters. Two of which were in a constant -40C where if you didn't use the block heater - you weren't going no where.