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Interpretation of compression test Posted by TML [Email] (#2212) [Profile/Gallery] (more from TML) on Sun, 28 Apr 2019 11:59:59 Members do not see ads below this line. - Help Keep This Site Online - Signup |
To sum up from a previous question, I have an '07 9-3 2.0T with suspected intake valve wear (hard starting when cold, runs fine afterwards). Based on advice specific to this model and issue, I did a "cold" compression test. All the general instructions I found online said to warm the car up to operating temperature before doing a compression test, so I did a second test like that (idled the car for 15 minutes, allowed it to cool for about 45 minutes).
Cold results (3degC ambient):
70, 65, 65, 65
Warm results:
170, 150, 150, 150
Is this what is expected for the notorious failing intake valve issue?
->Posting last edited on Wed, 31 Jul 2019 06:20:49.
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