View Full Version : Compression
Bunta
07-25-2007, 04:20 PM
Well I'm assuming the reason why the car wasn't running right was because it wasn't tuned and it needed a FMIC.
So I called up my buddie so we can change some spark plugs on it. Than we decided since the spark plugs were off we miles well do a compression test.
The car kind of feels like when one of your injectors go bad and your car just kind of lags for a while than later on everything starts to kick back in inconsistently. You can here the car spool and everything but the car just has the feeling where it's just not getting enough of something.
As of right now I'm going to just get the fmic put on and then get a new head gasket in there and then get it tuned. Hopefully that solves it.
xveganxcowboyx
07-25-2007, 08:05 PM
Leave the front mount alone for now. That isn't your issue. Focus on the basics. Do the proper compression test. Check for boost leaks. Check plug wires. Change fuel filter, etc...
Pushit2.0
07-25-2007, 08:44 PM
The compression is not your problem, it sounds like a wiring/grounding issue.
~John
Is it blowing coolant out? Why change a head gasket out just for the heck of it? Get the thing tuned and go from there. You can't modify a car and not tune it.
DWs97GST
07-25-2007, 09:29 PM
First off the numbers being that low ALL the way across probably means ur tester is off a little. BUT it doesnt make a diffrence because you have to much of a diffrence between compression therefore there is a problem somewhere. I would suggest a rebuild. NOW if it kinda takes off slow and gradually get better it could be because as u go you build compression. If one of your cyl is not sparking because the compression is too low then once it build up a little from moving then you will get spark and gain that cyl back.
You just totally pulled that out of your ass, didn't you? Physics says otherwise, not to mention how it works in the real world. Ignore the above post.
Bunta
07-26-2007, 07:53 AM
Yeah like I said most likely I'm going to get this thing tuned and go on from there. I'll keep you guys updated. Thanks for all the input though.
1ViciousGSX
07-26-2007, 11:48 AM
Do yourself a favor. Just run a real compression and leak down test. Then take it from there.
niterydr
07-26-2007, 12:27 PM
First off the numbers being that low ALL the way across probably means ur tester is off a little. BUT it doesnt make a diffrence because you have to much of a diffrence between compression therefore there is a problem somewhere. I would suggest a rebuild. NOW if it kinda takes off slow and gradually get better it could be because as u go you build compression. If one of your cyl is not sparking because the compression is too low then once it build up a little from moving then you will get spark and gain that cyl back.
:lurk::score001::crapper:
Umm wrong.
Post started okay then turned into a rambling mess of useless brain spew. I'd suggest to do a bit more research before giving technical "advice".
Pushit2.0
07-26-2007, 12:40 PM
I would look into your flamitation valve, when they get old and stick stuff like this can happen, I would try to get the car tuned that will point you in the right direction.
~John
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