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need help asap!!!

This is a discussion on need help asap!!! within the General Help forums, part of the LSx Technical Help Section category; i pulled my intake to switch my knock sensors out. didnt break anything upon removal, and didnt break anything on ...

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    Senior Member SteveCZ28's Avatar
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    need help asap!!!

    i pulled my intake to switch my knock sensors out. didnt break anything upon removal, and didnt break anything on install, bu my oil pressure gauge is maxed out. even when i just turn the key to on all my gauge zero out except the oil pressure gauge. it maxes out, then tries to go even further when i start up. what the hell is causing this???? please help!

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    Senior Member 00z28bubba's Avatar
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    Quote Originally Posted by SteveCZ28 View Post
    i pulled my intake to switch my knock sensors out. didnt break anything upon removal, and didnt break anything on install, bu my oil pressure gauge is maxed out. even when i just turn the key to on all my gauge zero out except the oil pressure gauge. it maxes out, then tries to go even further when i start up. what the hell is causing this???? please help!
    oil sending unit is in fact more than likely broken. if you dont know about it then it can be easy to miss.

    all wires and vac lines were literally wrapped around mine when i swapped to the ls6 intake manifold. when broken it is hard to spot after it is broken. because the portion you see sticks up and was most likely broken off and fell somewhere.

    this is what the sensor looks like. also called oil pressure sensor. make sure you get an extra deep socket because a regular 3" isnt deep enough. i had to get 2, cut one and weld the 2 together to get more than 3" deep. there were no 3+" deep sockets available to me. but it easily causes oil pressure to go crazy. mine was maxed out aswell. DO NOT TIGHTEN SENSOR BY HAND IF YOU CANT FIND THE SOCKET!!!! 2 weeks later i had to switch sensors because the first replacement was ruined and maxed again. tephlon tape and tighten with a socket. has been good for the past year. i didnt use tq specs. when the socket wasnt easily tightened i stopped. you should probably use tq specs though.
    Last edited by 00z28bubba; 03-19-2010 at 12:20 PM.

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    Senior Member SteveCZ28's Avatar
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    i would think if it broke it would show 0 oil pressure....not like 100 psi or more

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    Senior Member 00z28bubba's Avatar
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    as far as i know that is the only oil pressure sensor. but if the intake wasnt taken off before you are almost guarenteed to break it because of the wires being completely wrapped around it, and being 11 year old brittle plastic. not a good combination imo. when i found the broken piece, i barely squeezed it and it almost crumbled like wet sand clumps. i was in awe. then i tried to break an egg by squeezing it in my palm and humbled again lol

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    Senior Member SteveCZ28's Avatar
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    well i checked my oil and its like halfway up the stick also...so im puzzled as to why its doing that also....so it looks like im ripping my intake back off then

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    Senior Member 00z28bubba's Avatar
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    Quote Originally Posted by SteveCZ28 View Post
    well i checked my oil and its like halfway up the stick also...so im puzzled as to why its doing that also....so it looks like im ripping my intake back off then
    good luck with it. the sensor was $3X i think from autozone. but again that is the only oil pressure sensor i know of.

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    its short but its skinny. jiveass's Avatar
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    Quote Originally Posted by SteveCZ28 View Post
    well i checked my oil and its like halfway up the stick also...so im puzzled as to why its doing that also....so it looks like im ripping my intake back off then
    i would swap in a osu instead of takin it apart again...its been known that sometimes they do go out.

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    Senior Member SteveCZ28's Avatar
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    yea i had to order it thru auto zone...45 bucks

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    King 0f n00bz shady milkman's Avatar
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    well hold on..when you break the opsu..it sits at zero..as it is not getting any readings ....however i would pay close attention to it..remove the opsu and give it a good look over..also make sure the plug is securely on and there are no pinched wires.

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    Senior Member SteveCZ28's Avatar
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    Quote Originally Posted by needls1again View Post
    i would swap in a osu instead of takin it apart again...its been known that sometimes they do go out.
    an osu??? a oil sending unit??? i thought thats what we were talking about. im just confused by everything u just said???

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    its short but its skinny. jiveass's Avatar
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    Quote Originally Posted by SteveCZ28 View Post
    an osu??? a oil sending unit??? i thought thats what we were talking about. im just confused by everything u just said???
    sorry, i meant to say "new" osu....lol...or do like shady says and check the connection

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    King 0f n00bz shady milkman's Avatar
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    ok i see you ordered a new one..good deal..that should fix your problem..also if you have an advanced auto there..buy a opsu socket
    then return it after you are done..say it didn't fit

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    Senior Member SteveCZ28's Avatar
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    well i still have to remove the intake just to get to the oil sending unit

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    Senior Member 00z28bubba's Avatar
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    Quote Originally Posted by SteveCZ28 View Post
    well i still have to remove the intake just to get to the oil sending unit
    i replaced the second one w/o removing the intake. it makes it easier but not necessary if you are good with your hands.

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    Senior Member SteveCZ28's Avatar
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    my hands are wayyyyy too big to get back there

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    Senior Member 00z28bubba's Avatar
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    are you saying i cant have a whopper lol. i understand that point for sure. my dad cant do anything on my car if he wanted to lol.

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    O U 8 1 2 Spaz's Avatar
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    Quote Originally Posted by SteveCZ28 View Post
    my hands are wayyyyy too big to get back there

    i'd like to train a ferret to turn a wrench...

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    Senior Member SteveCZ28's Avatar
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    damn you guys are good....atleast it was this. and i have it figured out...i know this thing was still standing when i took the intake off the first time, and was standing when i put it back in, so my guess is i hit it somehow on the way back in and snapped her off...02z28bubba, im thinking u can have the junior whopper. haha

    and im with you spaz, only i was thinking something along the lines of a little capuchian monkey haha. that would be bad ass

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    Smiles for 9.5 Years cammed goat's Avatar
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    Well, good to hear you found your problem and are getting it fixed.

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    Senior Member SteveCZ28's Avatar
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    yea, had to order it from autozone, so they dont know if it will be here tomorrow, or monday...hopefully she'll be feeling better after this...i damn near cried when i saw my oil pressure and check engine light were on...i hate seeing her hurting like she is now

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