Hello everyone. I have a 96 monte Z34 with the dreaded 3.4V6. The timing belt broke not too long ago and I got lucky enough to replace it and it still run. However, I have a cylinder 3 misfire. I had replaced the spark plugs with autolite standard plugs in stead of the ac delco platinum against my better judgement. I did not replace the plug wires. I took one easy step and tried a new coil on the cylinder but it did not fix the problem. My next step is to check the compression then if its good, replace the wires. I was wondering if anyone could tell me what the compression should be, or even if anyone has any other ideas. I have narrowed it down with nothing but the cyl. 3 misfire code its setting. I also wondered if it may have to do with the type of plug I used. I do not have a manual for it yet so I was hoping someone on here may know the compression specs. Any help at this point would be appreciated.

 

Not sure what the compression should be, but I've had WAY more problems with plug wires than with anything else, well, except maybe coils. Stick with NGK Iridium plugs