Engine Mechanical problem
1997 Dodge Caravan 6 cyl Front Wheel Drive Automatic 126000 miles
Hi, my check engine light on my van says we have a port 4 misfire. We replaced all 6 spark plugs and wires and it continued to misfire. We the replaced the coil pack thinking that could be the problem. It has improved some but still isn't right. When we're driving, it sounds like the engine is backfiring (sounds almost like a shot gun) between 1500 and 2500 RPM. After that, it's fine. It also seems to chug when we get it around 50 MPH or so. Wondering, could the spark plugs have gotten damaged by the bad coil pack or is it probably a computer problem? I've also had people tell me it could be a lifter going bad or the catalytic converter. I don't know much of either of them though. Please help!
*** The fuel pump assembly was replaced about 2 months ago. There was also a compression test done and it came back fine.
have the same problem?
Wednesday, November 4th, 2009 AT 10:51 PM