I wonder if I can check the timing mark on the cam sprockets without removing the front timing chain case ? I see there are 2 valve timing control covers but I'm not sure that I could see the marks on the sprockets by just removing those 2 covers.
I have an 06 MT REVUP engine.
TIA.

 

Why do you want to check the timing marks? It is a timing chain it will not slip.

No you cannot see much by removing the small covers. The whole thing needs to come off, remove all accessories and the crank pulley then drop the lower oil pan and start removing bolts.

 

I have DTC P0011, P0021, P0014, P0024 on my engine. I replaced the solenoids and some of the cam and crank sensors but it still shows all 4 codes.
The engine I have in the car was from a roll-over car. I guess the timing might jump off a tooth or 2. Oil level was all good, last thing I have to check before I remove the timing cover is oil pressure. The engine starts, idles just fine but it's so sluggish and gas mileage is pretty bad too, I got around 240 miles per tank (16~17 gallons).

 

it is very hard for these motors to jump time. sounds like an oil pressure problem. check that out first. and you changed the IVT/EVT control position sensors up front?

 

Updated: The oil pressure is OK. idle @ 30 psi, 2000 rpm ~ 70ish .
I prolly change out 2 cam sensors on the back of the heads .