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  • 1996 - 2004 SN95 Mustang -General/Talk-

Compression Results

  • Thread starter Thread starter BurningRubber
  • Start date Start date Dec 4, 2007

BurningRubber

10 Year Member
Dec 6, 2004
1,865
24
58
Dec 4, 2007
#1
  • Dec 4, 2007
  • #1
I changed my plugs today and did a compression test while doing so.

I unplugged all the coil packs and injectors, cranked the engine over several revolutions @ WOT per cylinder (all other plugs in place). This is how I was told to do it, is it correct?

Drivers side, #1 is closest to the radiator.

1: 162psi
2: 172psi
3: 170psi
4: 165psi

Passengers side, #1 is closest to the radiator...

1: 150psi
2: 123psi
3: 160psi
4: 120psi


Not too happy with the passengers side...

I guess spraying it is a bad idea.

124k on the engine by the way.
 

mazen189

Member
Jul 31, 2007
424
0
16
I.E. southern california
Dec 4, 2007
#2
  • Dec 4, 2007
  • #2
thats not that bad for 124k, i mean, honestly, after 120k is when i started having lil problems from here and there.
 
D

darkside03gt

Member
Feb 19, 2007
851
8
18
Sacramento CA
Dec 4, 2007
#3
  • Dec 4, 2007
  • #3
I would check cylinders 2 and 4 again just to make sure those numbers are accurate. 123 and 120 is a little to low.
 

BurningRubber

10 Year Member
Dec 6, 2004
1,865
24
58
Dec 4, 2007
#4
  • Dec 4, 2007
  • #4
mazen - Yeah I figure thats probaly where a little bit of my oil is dissapearing to, but its been beat on by me and the previous owner.

darkside - I re checked the first cylinder that came up low, it repeated the same results so im very confident those are correct. I was bummed out about those 2 cylinders.
 
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