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sprinkles08, ASE Certified Technician
Category: Volvo
Satisfied Customers: 22676
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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03 xc 90 miss firing on 4 and 5

Customer Question

03 xc 90 miss firing on 4 and 5
Submitted: 1 year ago.
Category: Volvo
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

If compression is lower on the cylinders that are missing that's significant. Misfire monitor is a comparison between cylinders, cylinders with lower compression will perform lower and therefore it will count misfires.

Was it a static or running compression test that was done?

Did you record the results?

Customer: replied 1 year ago.
cylinders one threw 6 is 125,130,123,120,115,125 it is the t6 2.9L
Expert:  sprinkles08 replied 1 year ago.

What was the original problem?

Customer: replied 1 year ago.
head gasket blew on cylinder 5
Expert:  sprinkles08 replied 1 year ago.

What symptoms was the headgasket replaced for?