02-09 Envoy Trailblazer Ignition Coil PERMANENT FIX P0300 P0303 P0304 P0305 After Rain Or Carwash

[@tomdennis1622]

You figured it out! Thank you so much for posting this video. I have had this problem for years and now you've helped me fix it.

[@roseannnewton8231]

I am so glad you have posted this! We have had problems with this, and have had to replace coil packs due to this! #3 & 4. THANKS!

[@thedudeaaronfyi]

So I just figured I would update. I see the owner of this vehicle pretty regular and the issue has still not come back! so I would say this definitely fixed the issue!!!

[@cloakedbug4619]

Thank you so much for this!!! This may stop a third #4 coil failure, you are the man.

[@builtbluecollar1687]

thank you than thank thank you!!! you video fixed my misfire. After trouble shooting for days.

[@VoteTeaParty]

You are one smart man! I was looking at other videos, and I came upon yours. We just had a boat load of rain the last 3 days.I'll clean and caulk. Thank YOU!

[@MrQais333]

Bro thanks for the video, I’ve had this problem for over a year nw. Replaced almost 7 coils

[@hemimanram]

This video was very helpful and accurate with your hypothesis.. I'm dealing with a bad coil in cylinder 4 as well. I see the water issue with the seal.. Ford had a similar situation with there ford Windstar. After a rain the van would not go in reverse. Same problem water coming down past the seal leaking in the engine bay. Thanks for the video saved alot of time and money

[@topperthompson2713]

I sealed the windshield plastic shield them black siliconed the black rubber shield down no leaks anymore!

[@murraysherriffs4862]

You are the best!!

[@hititwithyourpurse9339]

thank u so much for your feedback! glad it was helpful

[@pfam12134]

Thank you very much, your video was so helpful....

[@thedudeaaronfyi]

Thank you for watching. I'm Glad it helped.

[@rosaazul88]

Yes i have this problem!!!

[@MrSnowman2110]

man i gotta try this i have a trailblazer that has been driving me crazy its alway p304

[@sovereignfreespirit]

Good Video Bud Kudos, hey you have to get yourself a nice denali wood grain steering wheel to go with the rest of that nice woodgrain. ;-) Will share this in the group on facebook envoy/TB and 360 envoy/tb

[@thedudeaaronfyi]

Lol. Not my car. It was a good friends. He’s not with us anymore but he loved that car. Thanks for watching. Glad it helped.

[@sovereignfreespirit]

@@thedudeaaronfyi Sorry for your loss, in response to this video I have used car trunk rubber seal or door seal it's a bit thicker I had to remove the frame bars but they go back.. and it works great!

[@m.camacho8925]

This might be the problem I have... water gets into two of the coils, coils are sideways and I always get water in only two of them...

[@josesoto9199]

My my doughter just bought a 2006England replaced the battery and alternator and still dies what should I do

[@hititwithyourpurse9339]

Kinda a tricky question with very little info but let’s give this a shot.... First measure voltage at batterie. Should be around 12 v or better. Run car and check again. Should be 13-15v while running. But if it dies after it’s been running then that’s a whole other conversation that’s best to have with a mechanic.

[@BrandonKinsey]

Not sure how to get to the bottom bolt on the ignition coil on cylinder #4 my went bad so I want to replace it then fix the water problem.

[@thedudeaaronfyi]

Im not sure what you mean by bottom bolt... Its been a while since I've seen this particular vehicle. But if I remember correctly, you just remove the air intake from the top of the motor and their should be 1 small bolt holding the coil in place. I believe it was a 10mm bolt. unplug it, Then you can just pull it rite out.

[@BrandonKinsey]

thedudeaaronfyi there are two bolts top and bottom the A/C tubes are in the way. I ended up using another wrench to spread them apart so I could get my socket on it. the hard part was getting the bolt back in without dropping it. unfortunately I still have a misfire on 4 🤔

[@thedudeaaronfyi]

You might need to unplug the batterie for a half hour or so to let the computer reset itself.