1999 Saab 9-5 compression 30% in number 1

1999 SAAB 9-5
20,700 MILES • 4 CYL • FWD • AUTOMATIC
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BUDGET1959
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i changed the turbo inmy 2.3 saab a year ago i did not change my scan tech pcv valve , and i changed the pcv kit new that the dealer told me to upgrade with the new kit, i now have white smoke coming from pcv valve out from the valve cover and just changed the scan tech valve the rest of the pistons have 200% compression . do i now have sludge build up and what do u think maybe damaged, or what may be the problem
Jun 10, 2010 at 3:44 AM
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MHPAUTOS
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Hi there, if you haver a low compression, do a wet compression test, add about 2 tea spoons of oil to the cyl and re test, this will temp seal the ring lands and if there is no reasonable improvement in comp you will have a vale problem, also get a heads check done this is a simple chemical test to check for exhaust gasses in the cooling system.

Mark (mhpautos)
Jun 10, 2010 at 4:06 AM