1999 Dakota 3.9 Idle/Stumbling Issue
I'm looking for some advice here...
The issue I have been having the last few months have been occasional to frequent rough idle. This seems to be drastically worse in the presence of moisture, say the morning after a nightly storm. For instance, after a rain last night, the truck started fine but idled very rough. Normally once I start driving and after a few miles it tends to calm down and run normal. Sometimes it will feel like it is missing and stumble a bit while at speed.
I have already tried the usual IAC replacement, spark plug replacement etc. After reading some of the posts on here I have heard possibilities like fuel pump, computer, o2 sensors, etc. Any input will be welcome. Thanks.