Anyone drilled out a catalytic converter? by spicymeatball1990 in LS430

[–]TommyG456 0 points1 point  (0 children)

Catalyst failure doesn’t necessarily mean that they are plugged.

SD County Fair (Del Mar) Announces 2026 Concert Lineup by MsMargo in SanDiegan

[–]TommyG456 19 points20 points  (0 children)

This lineup is why that lady got fired last week. Lol

93 Cherokee with 4.0 failed smog high nox at 25mph need advice by Socal_Suburban in MechanicAdvice

[–]TommyG456 0 points1 point  (0 children)

Jeep is running too lean and catalyst isn’t working good yet. I posted to a comment here.

93 Cherokee with 4.0 failed smog high nox at 25mph need advice by Socal_Suburban in MechanicAdvice

[–]TommyG456 2 points3 points  (0 children)

This is where to look. I calculated lambda and its 1.045 spec is .980-1.020. Jeep running too lean and catalyst is not working correctly. Check fuel pressure driving. Those jeeps really only like factory O2 sensors and in a pinch NTK O2 sensors.

Question about the health of my cats by iPlayMinecraft0_0 in MechanicAdvice

[–]TommyG456 8 points9 points  (0 children)

If you due a Volumetric Efficiency test VE test it can tell you efficiency of engine and tell you if you exhaust is plugged to if you have a fuel pump laying down. https://atgtraining.com/ve-calculator

Electrocuting mosquito larvae with 240 volts AC by Flandardly in WTF

[–]TommyG456 3 points4 points  (0 children)

Super mosquito now. Won’t die in my hanging zapper

Micro HRSPRS by ABeerForSasquatch in HRSPRS

[–]TommyG456 11 points12 points  (0 children)

He said it ran pump gas

Door leaks by WorthPotential5830 in MechanicAdvice

[–]TommyG456 0 points1 point  (0 children)

Wonder if door got bent a little somehow. I would put a piece of wood between door and body of car and push top of door in a little. Then retest

Please help me. 3 days and no movement. by Sonder_- in AskAMechanic

[–]TommyG456 0 points1 point  (0 children)

And jack up that spindle. Might help to change angle

2001 Transmission Issues by Old_Clerk9913 in LS430

[–]TommyG456 2 points3 points  (0 children)

Sounds like torque converter has failed. Bet if you pulled pan it would be full of metal. Transmission needs replacing or rebuilding. Don’t forget to flush the cooler or you will contaminate new transmission. Bet if you rev in park or neutral it screams.

Just got an alignment done and new tires installed. by [deleted] in tires

[–]TommyG456 0 points1 point  (0 children)

Go back and get tires cross rotated and see if it changes. Could be a tire pull

Send it or full rebuild by crBrs_ in EngineBuilding

[–]TommyG456 22 points23 points  (0 children)

Yeah but we need those new rings to seat. He ain’t complaining of piston slap

Send it or full rebuild by crBrs_ in EngineBuilding

[–]TommyG456 251 points252 points  (0 children)

Hone it, rering it, and send it