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PCV problems

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Old Mar 11, 2007 | 09:51 PM
  #1  
Trickedout420's Avatar
Trickedout420
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PCV problems

well usually my motto is if it isnt broke dont fix it, well i broke my motto and charma bit me in the *** tonight. i replaced the pcv valve on my truck, and got in and instantly i noticed the idle was alot alot alot smoother so i was like ok problem solved (was having a rough idle problem) well i start driving her around the block and when it starts shifting gears they were really neck snapping, so i took her home and put the old pcv valve back in and took it around again and the shifts were smooth again, anyone know why it would cause such harsh shifts


1991 F-150 supercab 5.0 E4OD 4x4 <--thats the vehicle
 
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Old Mar 12, 2007 | 05:38 PM
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Trickedout420
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anyone have any idea or guess, it was a puralator pcv valve, because the motorcraft one was 5 days away
 
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Old Mar 12, 2007 | 08:37 PM
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ACarbone624
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From: Vineland, New Jersey
maybe you are getting better vacuum now that you changed the PCV Valve, so the tranny is shifting firmer. The other one was probably leaking, since you were getting a rough idle.
 
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