thomasp94
Member
- Joined
- November 6, 2009
- Messages
- 16
- Reaction score
- 0
- City, State
- Pennsylvania
- Year, Model & Trim Level
- 1991 Sport
Hello. My 1991 sport has developed a new issue this winter. On cold days, usually 40 degrees or below, the engine will have a rough idle at start up. The idle is very noticeable, from outside the truck it sounds like a"chugging" type sound and if I try to drive the acceleration is rough and jerky. The problem goes away about 1-2 minutes after start, if I hold the idle around 2,000rpm it will go away even sooner. After this the engine is fine, runs perfect, no power loss, no noises. If it's a warm day it won't do it at all, but every time the engine is cold on a cold day this will happen. Been doing it for about 3 months now. I drive the truck almost daily.