07 wrx compression concerns

foof247 · 02-09-2013, 12:08 PM

I have an 07 wrx with 88k miles in it.

I did a compression test to find out that cylinders 1-3 have 150 psi
cylinder 4 is showing 140 psi.

Should I be concerned about this? I was told I will need to replace cylinder number 4 as soon as possible.

* Registered users of the site do not see these ads.

ProfessWRX · 02-09-2013, 02:33 PM

Quote:

Originally Posted by foof247

I have an 07 wrx with 88k miles in it.

I did a compression test to find out that cylinders 1-3 have 150 psi
cylinder 4 is showing 140 psi.

Should I be concerned about this? I was told I will need to replace cylinder number 4 as soon as possible.

I wouldn't mess with a rebuild. Youre talking about a less than 7% difference.

stevejones19 · 02-09-2013, 04:29 PM

The guys I took my car to just did one, highest was 130 low was 120. they said that it was completely healthy. You should be plenty good.

foof247 · 02-09-2013, 06:56 PM

alright I'm hoping so then I just don't want to have any unexpected and unwanted surprises out of my car

ProfessWRX · 02-09-2013, 07:05 PM

Quote:

Originally Posted by foof247

I just don't want to have any unexpected and unwanted surprises out of my car

"...a truth of the theory, well confirmed by practice, whatever can happen will happen..."

In other words, good luck with that!

GGSimpreza · 02-09-2013, 11:56 PM

It's a Subaru motor and that's cylinder 4. Normal.

02-09-2013, 12:08 PM	#1
foof247 Scooby Newbie Member#: 290623 Join Date: Aug 2011 Chapter/Region: MWSOC Location: sterling heights Michigan Vehicle: 2007 Wrx pearl white	07 wrx compression concerns I have an 07 wrx with 88k miles in it. I did a compression test to find out that cylinders 1-3 have 150 psi cylinder 4 is showing 140 psi. Should I be concerned about this? I was told I will need to replace cylinder number 4 as soon as possible. * Registered users of the site do not see these ads.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

02-09-2013, 04:29 PM	#3
stevejones19 Scooby Specialist Member#: 275250 Join Date: Feb 2011 Chapter/Region: NWIC Location: Lacey, WA Vehicle: 2006 WRX White	The guys I took my car to just did one, highest was 130 low was 120. they said that it was completely healthy. You should be plenty good.

02-09-2013, 06:56 PM	#4
foof247 Scooby Newbie Member#: 290623 Join Date: Aug 2011 Chapter/Region: MWSOC Location: sterling heights Michigan Vehicle: 2007 Wrx pearl white	alright I'm hoping so then I just don't want to have any unexpected and unwanted surprises out of my car

02-09-2013, 11:56 PM	#6
GGSimpreza Scooby Newbie Member#: 291739 Join Date: Aug 2011 Location: Harrisonburg, VA Vehicle: 99 Impreza RS Silver Milage	It's a Subaru motor and that's cylinder 4. Normal.