Ranger-Forums - The Ultimate Ford Ranger Resource

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-   4.0L OHV & SOHC V6 Tech (https://www.ranger-forums.com/4-0l-ohv-sohc-v6-tech-33/)
-   -   codes 171 and 174... (https://www.ranger-forums.com/4-0l-ohv-sohc-v6-tech-33/codes-171-174-a-119099/)

2k2b4k Feb 10, 2011 09:17 AM

codes 171 and 174...
 
Hi all, before you jump all over me for not searching, i know what the codes mean. I have cleaned the IAC and that didn't do anything. Now i am ready to check for vac leaks... this is where my question comes up. Can someone post a pic to show all of the vac lines and also suggest any other checks that i should do.

Thanks

djfllmn Feb 10, 2011 01:30 PM

well i had a problem on my 03 4.0 with the vac hose elbow under the throttle body...they are known to crack...actually a TSB for it...how many miles on yours...mine had to be replaced at 57K

2k2b4k Feb 10, 2011 01:47 PM

It has just over 100K on it.

djfllmn Feb 10, 2011 01:57 PM

yea definatly check that hose elbow...that very well might be the culprit

2k2b4k Feb 10, 2011 01:59 PM

ok i will take a look at it. Thanks

pcollins Feb 10, 2011 10:02 PM

Did you clean the MAF with some MAF cleaner?


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