Supercharger no whine/boost.
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Junior Member
Joined: Mar 2021
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From: Covington Ga
Supercharger no whine/boost.
2002 Ford F-150 lightning stock supercharger. So, basically I am getting no whine or boost from my supercharger when throttle is pressed. I've taken it apart and replaced the internal coupler. The rotor packs in supercharger are turning when pulley is rotated. I replaced the boost bypass actuator with a new one so it works. I did the turkey pan delete behind s/c and added a JLT oil separator. All of the boost lines are properly hooked up. I've ordered a new gator belt for s/c pulley. I am getting codes p0171 and p0174(lean in both bank 1 and 2) as well as code p0243(wastegate actuator circuit) when I plug my obd2 code reader in. Any ideas what it could be? I really would like my truck to be up and running.
Last edited by jerone0822; Mar 12, 2021 at 10:56 AM.
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Joined: Apr 2004
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From: missing Texas...
we need pictures of the vacuum line routing
and was it making boost before you hacked on it???
and was it making boost before you hacked on it???
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Junior Member
Joined: Mar 2021
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From: Covington Ga
No, everything was stock before I did the turkey pan delete and added the oil separator but the sudden loss of boost/whine while driving is when I figured to do the turkey pan delete. The truck initially started with what seemed to be a light squeaking sound like that of a pulley starting to go bad. It made the squeaking sound for about a month and then I just got in the truck one day and noticed that I had only straight engine and that my supercharger was no longer kicking in. Typically the hose that runs behind the supercharger coming out of the turkey pan tends to get a hole in it which causes the p0171 and p0174 codes from what I read. However, mine didn't have a hole in it and so I went ahead and removed the turkey pan hose and plugged it and added the oil separator anyway since I was already committed and not to mention there was a good bit of oil in the turkey pan.
Senior Member
Joined: Apr 2004
Posts: 13,678
Likes: 82
From: missing Texas...
No, everything was stock before I did the turkey pan delete and added the oil separator but the sudden loss of boost/whine while driving is when I figured to do the turkey pan delete. The truck initially started with what seemed to be a light squeaking sound like that of a pulley starting to go bad. It made the squeaking sound for about a month and then I just got in the truck one day and noticed that I had only straight engine and that my supercharger was no longer kicking in. Typically the hose that runs behind the supercharger coming out of the turkey pan tends to get a hole in it which causes the p0171 and p0174 codes from what I read. However, mine didn't have a hole in it and so I went ahead and removed the turkey pan hose and plugged it and added the oil separator anyway since I was already committed and not to mention there was a good bit of oil in the turkey pan.
so you routed/modded the Vacuum lines incorrectly, and since there was no hose issue prior to you wasted your time and messed up your truck
so it’s time to run the vacuum lines properly
https://www.lightningrodder.com/thre...-codes.101888/
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Junior Member
Joined: Mar 2021
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From: Covington Ga
My supercharger stopped working before I did any modifications to my truck. It was completely stock prior to me doing the turkey pan delete and adding the JLT oil separator. I didn't wire anything incorrectly to my knowledge.