Blazer's 85 Suburban "Twinkie"

imiceman44 · Sunday at 9:51 PM

kgblazerfive said:
Video will not attach, got a really bad rod knock

Sure it's a rod knock?
It does sound like a cracked flexplate as well.
Easy enough to check that one.
Or even loose bolts on the flexplate

Truckman4life · 2026-09-14T07:21:15-0600

You can cut the oil filter open to check for bearing material.

72gmck5 · 2026-09-15T12:59:35-0600

Check oil and pull plugs. Those are the easiest ways to narrow down what’s going on.

72gmck5 · 2026-09-15T13:00:21-0600

If that’s too much, definitely start on a 8.1 swap instead

70jimmy · 2026-09-15T16:52:13-0600

Google it AI knows...

Babaganoosh · 2026-09-15T18:58:28-0600

72gmck5 said:
If that’s too much, definitely start on a 8.1 swap instead

8.1 would be good but it will open a can of worms

kgblazerfive · 2026-09-15T19:34:19-0600

Another video
Took off valve cover, looks fine
took off flex plate cover looks fine there too

76zimmer · 2026-09-15T19:44:15-0600

You need a mechanic stethoscope.
Seems a little low on top end oiling?

kgblazerfive · 2026-09-15T20:22:22-0600

76zimmer said:
You need a mechanic stethoscope.
Seems a little low on top end oiling?

Yeah saw that too, thought hmm.

Babaganoosh · 2026-09-15T20:29:58-0600

sounds like your going down the prybar to the ear trick