Mine did that once. I had the larger engine, I can't remember if it was
3.5 or 3.8, anyway it was the larger engine they made that year. It turned out to be the plug wires. They are not real easy to replace because they are routed under the air intake plemum. So if you do it yourself, make sure you get a plenum gasket because you will have to take it off to do the job. It's not real hard, it just takes a while. It certainly is not as easy as my 57 Ford was.- posted
18 years ago