Coolant & Misfire

[Christophe Salvain]

Hi

The fact :
- 136400 miles on a '03 Venture.
- Run on 5 cylinder for 1 minute after crank. After run fine on 6 cylinders.
- Engine coolant is leaking but I dont know where : there's no smell like a defective IMG.

I get a noticable "P0304: Misfire cylinder #4" with CES blinking under accelerating.
The cylinder #4 is the front middle one : the easiest to check and access.
BTW i change plugs, wire and coil and still the same symptoms.

Any idea : fuel injector ?

Bst rgds

ps : All apologies for my poor "french touch" english

[lesterl]

Your english is fine.

How did #4 plug look in comparison to the others, was it very clean looking, if so it is burning coolant........

[Tech II]

Did you check your post on the "Pontiac" thread?

[Christophe Salvain]

Originally Posted by Tech II

Did you check your post on the "Pontiac" thread?

Ok thanks
Follow up on Montana forum.