# 0 Compression Cylinder 3+4 Need help ASAP. **URL:** \ **Category:** SON240sx Automotive\ **Created:** [April 5, 2008, 4:48pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436 "2008-04-05T16:48:17Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Noga](https://avatars.discourse-cdn.com/v4/letter/n/f19dbf/32.png) [@Noga](https://forums.speedlife.net/u/Noga)\ **Post date:** [April 5, 2008, 4:48pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/1 "2008-04-05T16:48:17Z")
Yeh 2 days ago car ran like shit after stopping at a red light. I originally thought just one of my injector wires had fucked up on me again like usual but today I found #3 wasnt firing either so I did a compression test and #1 #2 are mint but I got no compression at all in #3 #4. Would anyone have any ideas what this could be? Ive thought of 3 things it could be but please dont limit to just agreeing with my choices if you have any ideas at all as im not largly mechanicly inclined. Headgasket fucked Hole in pistons Hole in cylinder walls Thanks, Kyle ---
**Author:** ![sick96gst](https://avatars.discourse-cdn.com/v4/letter/s/dec6dc/32.png) [@sick96gst](https://forums.speedlife.net/u/sick96gst)\ **Post date:** [April 5, 2008, 5:31pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/2 "2008-04-05T17:31:42Z")
Could be lots of things, pull her apart and find out ---
**Author:** ![Noga](https://avatars.discourse-cdn.com/v4/letter/n/f19dbf/32.png) [@Noga](https://forums.speedlife.net/u/Noga)\ **Post date:** [April 5, 2008, 6:25pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/3 "2008-04-05T18:25:23Z")
> [@sick96gst"](#): > > Could be lots of things, pull her apart and find out Not really the type of answer im looking for as this is my DD. If I cant find this out in a couple of days im just gonna go SR then pull her apart after and if its just a headgasket issue ill do it up and sell it. ---
**Author:** ![Heatw](https://avatars.discourse-cdn.com/v4/letter/h/cdc98d/32.png) [@Heatw](https://forums.speedlife.net/u/Heatw)\ **Post date:** [April 5, 2008, 6:40pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/4 "2008-04-05T18:40:59Z")
could be messed valves too, but you’d probobly hear them, he’s right tho eventually you’ll just have to pull it apart and find out… or skipit altogether… when i blew out the headgasket in my ca, it actually ran for a number of days until it over heated, haha instead of dealing with the potential damage… i just sold my s12 and went rb25 in an s13 hahaha that’ll learn the ca to die on me, should also be capable of the same hp with less effort hehe, no need for 17psi + cams etc on this one lol ---
**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\ **Post date:** [April 6, 2008, 7:42am UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/5 "2008-04-06T07:42:40Z")
> [@WTB: PS2 accessories](https://forums.speedlife.net/t/wtb-ps2-accessories/16356/10): > > Not really the type of answer im looking for as this is my DD. it’s really the only answer, we could give you a list of 50 different things that could cause it… but would that really help? after you factor in all the time you’ll spend trying to figure out and fix what’s wrong with it, you can justify the price of a new motor as long as you do the install yourself. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [April 6, 2008, 2:40pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/6 "2008-04-06T14:40:32Z")
I have a feeling that you lost the rockers, just pull your valve cover off and you will know with in a few min ---
**Author:** ![Noga](https://avatars.discourse-cdn.com/v4/letter/n/f19dbf/32.png) [@Noga](https://forums.speedlife.net/u/Noga)\ **Post date:** [April 6, 2008, 3:44pm UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/7 "2008-04-06T15:44:37Z")
> [@FS: Random Items \*\*PICS\*\*](https://forums.speedlife.net/t/fs-random-items-pics/16514/10): > > I have a feeling that you lost the rockers, just pull your valve cover off and you will know with in a few min Yeh I alrdy had her off. And no worries guys looks like im just gonna go sr then when I get some time take a look at what happened. ---
**Author:** ![jayson](https://avatars.discourse-cdn.com/v4/letter/j/aeb1de/32.png) [@jayson](https://forums.speedlife.net/u/jayson)\ **Post date:** [April 7, 2008, 8:08am UTC](https://forums.speedlife.net/t/0-compression-cylinder-3-4-need-help-asap/114436/8 "2008-04-07T08:08:45Z")
its your valve spring actuator module, its probably fried.