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Old 04-27-2011, 04:51 PM
HowieWowie HowieWowie is offline
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Default rough idle

I have a 2001 ford ranger 2.5 liter a few months ago it was trying to die on me I went to Auto Zone had it check and they told me it was the EGR well checked it out it was ok clean and diaphragm worked. So run a bottle of Lucas oil gas treatment took a 15-20 mile run it was ok and run till now just fine. Now just went with same problem today did the same at Auto Zone same analysis said it was EGR again took it off cleaned it it is ok diaphragm works and is clean. Well it idles at 200 rpm and it is ruff I checked all vacuum lines and cant find a leak can someone please help
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Old 04-27-2011, 05:13 PM
klinger86 klinger86 is offline
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Default Re: rough idle

clean the IAC...
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  #3  
Old 04-28-2011, 07:54 AM
modelageek modelageek is offline
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Default Re: rough idle

Quote:
Originally Posted by HowieWowie View Post
I have a 2001 ford ranger 2.5 liter a few months ago it was trying to die on me I went to Auto Zone had it check and they told me it was the EGR well checked it out it was ok clean and diaphragm worked. So run a bottle of Lucas oil gas treatment took a 15-20 mile run it was ok and run till now just fine. Now just went with same problem today did the same at Auto Zone same analysis said it was EGR again took it off cleaned it it is ok diaphragm works and is clean. Well it idles at 200 rpm and it is ruff I checked all vacuum lines and cant find a leak can someone please help
Quote:
Originally Posted by klinger86 View Post
clean the IAC...
definitely pull the IACV off and clean it....it is a maintenance issue..also while you are at it clean the TB and the MAF.....that being said I am going to guess the code/s you are getting are P0401/p0402.....The EGR valves on these trucks rarely fail........99% of the time you have a faulty DPFE sensor......check the hose on it and if they are OK.then replace it....
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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).
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  #4  
Old 04-28-2011, 01:44 PM
HowieWowie HowieWowie is offline
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Default Re: rough idle

Thanks guys I cleaned EGR, IAC and MANF and it runs real good idle runs about 1400 rpm till warm up then goes down to 900 rpm, cleaned IAC and MANF at the same time so one or the other fixed it.

2001 Ranger
2.5 l
127,800 miles and runs like charm
and pulls my Jon boat with ease

"Keep on Truck'en"

Last edited by HowieWowie; 04-28-2011 at 01:56 PM.
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  #5  
Old 04-29-2011, 02:02 PM
HowieWowie HowieWowie is offline
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Default Re: rough idle

Quote:
Originally Posted by HowieWowie View Post
Thanks guys I cleaned EGR, IAC and MANF and it runs real good idle runs about 1400 rpm till warm up then goes down to 900 rpm, cleaned IAC and MANF at the same time so one or the other fixed it.

2001 Ranger
2.5 l
127,800 miles and runs like charm
and pulls my Jon boat with ease

"Keep on Truck'en"
full warm up about 600 rpm idle
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