I like, to the point, and works for any vehicle; Thanxs for making this an easy to follow video for those whom are not mechanics but are looking for clarity .
Good job! I have a 2000 silverado 5.3L getting ready to check for vacuum leak. Running lean, but codes clear and it’s an intermittent problem. I hope the smoke tracks it down. Thanks again for the post. 👍
@@Danielxperez14 actually called the mobile mechanic and he did intake manifold and valve cover gasket replacement. Seems to be good now. I just got tired of chasing my tail and had to call the professional. 390k. Like a rock. First time gasket replacement, so needed it.
Well, this is one way to do it. I've also been injecting right after the MAF sensor with the part of the smoker that balloons up. Maybe I'll get a video of that up sometime soon. Thanks for watching!! 😊
Thomas, you're welcome! Thanks for watching! If you have the piece that balloons 🎈 up when you use the hand pumping bulb, you can stick that ballooning side into the big air intake tube, after the MAF, and pump it up there and inject the smoke at that point. Again, thanks for watching and thanks for the comment! 😊👍
@@robertmedina6875 thank you! Plan on doing more very soon but it will be a mix of stuff, kind of like the channel is now. Hope that's okay for most people. My plan is to deliver information on things that I know that others will hopefully find useful. 😊
This is a great Idea. Thank you. I would like to ask you a question about a vacuum leak on my 2002 Ford Ranger. The brakes are sponge, and the transmission stopped shifting into high gear and the speedometer reads about 80 miles per hour when it is only going 40 . . could that be a vacuum leak?
Great video I just subscribe. Quick question I thought running lean means too much air not enough fuel. If you are losing air or vacuum leak shouldn't your car be running rich due to less air and more fuel
Thanks, real to the point. Just inquiry, dont we need to do some open/close to the purge valve? In order for smoke to travel to further areas? Thanks again
all the tests like this are really smoke pressure tests I've had a lot of vacuum leaks that leak under vacuum but not pressure so maybe it would be better to apply vacuum (vacuum cleaner) to the engine and have a very low whiff of smoke out a tube and prod it about engine and hoses to see if the smoke gets sucked in. as many a 2 cycle crankcase can stand up to a pressure test but leak like crazy under vacuum. p s I'm not having a go at you personally just the traditional smoke test used by everyone is floored
David, very interesting. I may have to give this a go. I'm not technically a mechanic, I've just been working on all of my own vehicles for the past 20-ish years. I fixed those three leaks from the video last night, cleared the codes, and I test drove today. It's still throwing the two codes for running lean on banks 1 and 2. I haven't smoked tested again but maybe I will tonight. My fuel pressure at the fuel rails seems okay at about 56psi but maybe there's still an issue there. Last week I changed the two downstream O2 monitors because one of them tested bad and I figured I might as well replace both. I replaced the MAF sensor too, just for good measure. Four months ago I also cleaned, tested and put new O-Rings on the fuel injectors. I did a video on that. All parts changed out were AC Delco except MAF sensor, that was Delphi. That's probably a bit more information than you were looking for but I just started typing and kept going! lol. Thanks for watching and the information!
Oh, and my Long Term Fuel Trim numbers don't look great. They fluctuate between ~4% - 12% at idle to ~6% - 24% while driving. So I'm definitely trying to figure this thing out.
What year is that truck? I thought there was a valve on the brake booster hose. I might have to run mine through there and try. I like the double bag trick on the intake.
@@rubencuellar8535 no it's not the only place. If you have the bladder that inflates with the smoke machine, then you can put the bladder in the big intake line after the MAF and send smoke in that way. Maybe I'll do another video on that process sometime soon since I'm about to start making videos again. 😁 Thanks for watching and for the comment!
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