Dead misfire on a Pontiac Grand Prix

After a phone call from a fellow firefighter I dove into his wife's car, finally an easy diagnosis and a straight forward repair.

[@KingShit3336]

"The local Mechanic committed suicide, so now I have more to do"

[@HiteshPatel-mq4hd]

I have similar issue with my pontiac grand prix and your video helped me understand the cause of the problem. Awesome video. Keep up the good work.

[@bulldogsautomotiveadventur4387]

Thanks for the support

[@walterwhitaker1395]

Good practical practice! Works for me!

[@jebb3620]

rip to the mechanic

[@Ittybittythetwofacedkitty]

Thank you much

[@ronniereed8153]

Big guy I've got a question ❓ I e got a 2006 Pontiac Grand Prix 3.8 its doing the same thing. I've changed Both the 02 sensors, all the new spark plugs twice, new plug wires, ignition control module twice just to be sure,the coolant temperature sensor,egr valve,mad and Map sensors, And my car still misfires after being warmed up in the morning.

[@bulldogsautomotiveadventur4387]

Take a stethoscope or use a screwdriver to listen to the injectors, localize which cylinder by pulling wires then listen to the injector compared to others, if the click sounds muted then the windings in the injector might be failing when hot

[@richardfry1029]

Auto zone can bench test that ignition module

[@bulldogsautomotiveadventur4387]

I’ve replaced dozens that they’ve "bench tested good" that fixed the problem. They’ll only show up if they’re completely dead like this one was, most are temp dependent and fail while hot.

[@MarkPopp]

GREAT video, Thanks!!!!

[@ohbillytv179]

If you don't use heat sink grease on the back they won't last long at all

[@walterwhitaker1395]

No dialectic grease?

[@bulldogsautomotiveadventur4387]

Didn't come with the module and I couldn't find any that night...I was looking

[@DoubleoP]

Should of sanded the plate surface and greased it .

[@martellsimmons2151]

I need u for real

[@bulldogsautomotiveadventur4387]

Thanks for the support!