Where is cylinder two located?

2004 OLDSMOBILE BRAVADA
99,000 MILES • 4.2L • 6 CYL • 2WD • AUTOMATIC
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CRAIGAK
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I have a misfire on cylinder two on my vehicle listed above, but I don't know which cylinder is cylinder #2. Do you have a diagram that could tell me? Thanks.
Oct 29, 2022 at 4:32 PM
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CARADIODOC
  • ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
Here's the cylinder layout and the firing order.

If you can't feel the misfire, but the Engine Computer is detecting it, at the mileage you listed, uneven flow rates of the injectors become a good suspect. If you do the normal things, but this turns into an elusive cause, consider switching the injectors between cylinder # 2 and one other one, erase the fault code, then see if a misfire code sets for the cylinder, you moved the suspect injector to.

If you do get a misfire code for the new cylinder, install a set of rebuilt, flow-matched injectors.

You might get more ideas from this article too:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Oct 29, 2022 at 5:48 PM
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