No power

2009 GMC ACADIA
104,145 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC
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MARK FRIZZELL
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No codes, with scanner I found right catalytic converter was clogged so replaced that fixed that issue. thought that fixed the issue it did not. still bogs down on acceleration. Check fuel pressure at rail is 63 psi. Since I have no codes and fuel pressure, and catalytic converters aren't clogged now, I'm a little lost. MAF is 4.89 at idle
And 20 m at 1500 rpm's so I don't which direction to go now. can you help?

Mark Frizzell
May 16, 2019 at 8:42 AM
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ASEMASTER6371
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Good morning,

The next step would be compression to verify timing between cam and crank.

Do a compression test or pull the front cover to verify the timing marks

Roy
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May 16, 2019 at 8:50 AM
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MARK FRIZZELL
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It's starts great, idles great. scanner indicates cam and crank are in sync.
May 17, 2019 at 5:07 AM
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ASEMASTER6371
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I would still check the compression to be sure.

Roy
May 17, 2019 at 5:16 AM