Engine Shudders when coming to a complete stop

[wheelchairdude49]

2000 Ranger 2.5 auto. Engine shudders when i come up to stop, then idles smooth again. the past couple of days it seems to be getting worse. I had someone tell me to pull the wiring off the IAC valve to see if it would stall. It
didn't. No codes now. Last week i did have a lean code and found the egr tube had a big hole in it. put on a new tube and it fixed the code. Don't know if that had anything to do with the shuddering. I have checked fuel pressure, put on a new fuel filter, maf sensor, pcv and 2 vacuum hoses. New plugs and wires. Anybody have any ideas on what's causing the shudder?
Thanks

 

[Duane867]

Air filter ?


Have you cleaned the IAC ?

 

[wheelchairdude49]

engine shudder

New air filter . Haven't cleaned the iac yet. Not sure what kind of spray to use. Some say carb cleaner .

 

[Duane867]

Yup, or gasoline , or diesel fuel etc etc etc..... just dont drop the whole works in though.
keep the electrical connector dry.

 

[wheelchairdude49]

engine shudder

Ok Thanks. I will give that a try tomorrow.

 

[modelageek]

What were the details of the FP tests?