89 5.0 throttle body

[kinghd78]

My truck doesn't want to idle down right away. After it's warmed up when you let off the peddle it will go down to a fast idle but takes about 15 to 20 seconds to idle down to normal. FYI, it"s a manual trans. What should I check? Thanks

 

[Molson02536]

My truck doesn't want to idle down right away. After it's warmed up when you let off the peddle it will go down to a fast idle but takes about 15 to 20 seconds to idle down to normal. FYI, it"s a manual trans. What should I check? Thanks

Start with the simple and clean your throttle body woith throttle nody cleaner. Once that have been done, check and replace any Vacuum lines that are damaged. The last would be to replace your fuel filters, Start with these few things and post bak.

The other are also you may want to check would be the EGR valev, clean it out and make sure that it can move freely. Good luck and post back.