Timing woes for my Regal.

[jaydog2025]

I'm hoping someone has run into this issue before and knows how to proceed. I installed all new timing parts as the oil consumption issue did my car in. I timed it perfectly according to the GM procedure for my LAF (both cams same part number) First time, ran great for 5 miles then limped to the shoulder. 2'nd and 3'rd I can't get rid of P0016 and P0017. But I'm 100% certain I timed it perfectly, controlled slack to exhaust side etc. I'm pretty sure it's a reluctor wheel issue. I have the TSB from GM but it only applies to the LE5. Does anyone know what the procedure is for verifying the reluctor wheels haven't spun? 2011 LUF.


Thanks in advance,
-J

 

[richardnewton]

2 videos on reluctor wheel issues with the 2.4

FYI -
This manual says TDC exhaust stroke. The timing system had some revisions around this year so I don't know if this is applicable to your VIN

56. Camshaft Timing Chain, Sprocket, and Tensioner Installation — 2011 Buick LaCrosse FWD L4-2.4L Service Manual | Operation CHARM

Detailed repair manual for the 2011 Buick LaCrosse FWD L4-2.4L.

charm.li

Was the tensioner deployed with a "strike or hit" after the chain was installed?

Timing chain tensioner extended.

After a rebuild from losing the rear main the engine rattled on start up like the timing chain was loose. Putting it back on the lift and peeling the valve and front covers off I find that the tensioner is fully extended and the chain is somewhat loose. Mind you everything having to do with the...

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