4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

4.0 v6. Motor rushes

Old Sep 5, 2022
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mtnhrtwds@yahoo.com's Avatar
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4.0 v6. Motor rushes

My 4.0 v6 when setting at light or sitting running accelerates to 2300 rpms.. I noticed its usually in warmer weather.. What could cause this? Any suggestions on a remedy.. Thanks
 
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Old Sep 5, 2022
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There were two 4.0l engines used in Rangers
1990-2000 4.0l OHV
2001-2011 4.0l SOHC

What year is your Ranger?

Manual transmission?
 
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Old Sep 5, 2022
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Thanks for the reply Ron. Its a 2004 4.0 v6
 
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Old Sep 5, 2022
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Its manual tran.
 
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Old Sep 6, 2022
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Check/change PCV Valve and check its long hose, it has 2 bends/elbows, these elbows tend to crack on the under side, so not seen easily

Thread here on this issue: https://www.ranger-forums.com/4-0l-o...mon-cel-93776/



 
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Old Sep 6, 2022
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Originally Posted by RonD
Check/change PCV Valve and check its long hose, it has 2 bends/elbows, these elbows tend to crack on the under side, so not seen easily

Thread here on this issue: https://www.ranger-forums.com/4-0l-o...mon-cel-93776/
Thank you Ron, I'll check it out. It would never do it when I had it in for service.
 
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