Rough idle

[ZQQM]

Rough idel

My 91 L98 runs good at any speed but has a rough idel when coming to a stop. Any advice or direction? Thanks

;help

 

[jeepie]

That could be a bunch of things, check your plug wires I had one that was rubbing the back of the valve cover on the driver side and had worn the insulation off. I am sure others will add different things to check.
Good luck.

 

[dburgjohn]

Changes made?

Have you made any changes to the car? I did to mine and it developed a rough idle. I disconnected the battery to remove for cleaning and when I hooked it all back up, it ran (idled) perfect. Anyone out there know why this happened or if the two are related?