The Fuel Additive Mechanics Don’t Want You to Know

graev up your engines okay today we got a Subaru Outback that stalls out you drive it Stu on the gas it has a tendency of coning out the guy bought it a couple months ago he's happy with it otherwise so let's try to figure out what's wrong here now it's a 2012 Subaru Outback and as we can see by the VIN number four is made in the United States has 154 mil it's all-wheel drive and it's a partial zero emissions vehicle now there's many things that can make a car conch out when you come to a stop and run okay otherwise we're going to look under the hood for the simple things first vacuum leaks can cause it so let's listen for vacuum leaks I don't particularly feel any I don't hear anything so let's pull out the air filter and indeed the air filter is all black and clogged up so we're going to change the air filter first there the air filter will give you problems but rather than guess anymore we're going to get out my autel here we'll get a good analysis of what's making it conk out get already detected it okay we'll do a standalone diagnosis not starting to analyze stuff and we'll do a full scan while we're doing a scan we look inside it's a nicely set up car you know got a nice classic setup there's the clock up there older so it's got a CD player check it out and the seats are in decent shape the headrest is Miss somebody took them away everything's green we'll see what happens start with obvious things if there's a code for a problem there's a problem you fix that first if it has to do with the running of the car now if this said something about a problem with a right front window that doesn't have anything to do with a car stalling out when it comes to a stop so we would ignore that but you got to start with the basics and since the guy just bought the car couple months ago I'll give them a good idea what shape it's in dund it's only got one Fall Tire number four air pressure that's not going to make the car stall out that's not the problem we'll check all the pressure just to make sure it's safe for driving but that's not going to make a car conch out and after checking the tire pressure they're all normal anyway so H one of the sensors probably squirly on number four who cares tire pressure gauges are cheap just DET take the pressure once in a while but it's dying out for some reason we got to figure it out now we're going to go to the engine system and we're going to look at live data a lot of live data start looking and see what's happened the air fuel correction is only minus 0.8 it's running just a tad rich but not much that's almost perfect so you can see that's going pretty steady 2.35 G per second there's nothing wrong with that so we'll just look through and like I say look one is perfect it's only off a tiny bit 1. is perfect so you can see the air fuel correction zero it's not correcting anything it's working fine realize this is a partial zero emission vehicle runs extremely lean and even a little bit off can make the engine con out every once in a while I'm putting a can of Bernie's ATS fuel cleaner in the tank when I take it for a ride could be a simple there's a little carbon buildup and that'll clean it up from what I see here other than a dirty air filter it's not particularly correcting anything at all it's not overheating the cooling fans are coming on but this is something I have against Subaru if you notice there's no temperature gauge it's got a mile per gallon estimator but it only has an idiot like there is no temperature gauge and I don't like that we we'll turn the key off we'll turn the key on it does not have a temperature gauge it's only got a warning system if it overheats down there see if it overheats then it's too late come on Subaru put a temperature gauge back on your cars give us a little information about our cars that's very important you got a car runs in the middle all the time you know something's right it starts going three4 and higher you know something's going on this stupid thing won't tell you that it'll only tell you when it's overheated and it's too late L then Subaru you do not need to make them that cheap now sometimes if a transmission has a problem say the torque inverter is locking up or sticking neck and cause a stall so let's check out transmission data there's a CVT transmission which I'm not a particular fan of but let's look at the live data voltage is fine it's got plenty of power all the data looks good it's black it's not off now we'll try a trick in that we'll put it in gear now it's got a load we'll give it a little load with the foot on the brake so doesn't move and we'll see if any of this data gets squirly no it's all staying within parameters so let's take it for a spin have a manual override so I'm going to rev the engine higher than normal since I have Bernie's cleaner in the tank to help clean it out while we drive it and go and get an air filter so by keeping it in low see we can make it go up and down but what we're going to do is we're going to put it down so it drives higher and the cleaner will do its job better the faster the cleaner runs through the better it's going to clean I like those fake chefs see it's a second gear but it doesn't have any gears so it's kind of crazy but that's how the engineers made it now we're backing first anybody coming nobody's coming here we go welcome to a stop put in first gear and here we go look a HW you pick something up we'll leave in third at 4,000 RPM more RPMs the more it's going to clean this might stop it from stalling it out entirely see the speed limit here is 40 so I'm going 40 in the fake second gear so it's going about 4,000 RPMs which is going to really help clean the engine out now we got the air filter in we're coming home keep the RPMs up and there's nobody behind us so we'll slam the brakes on see if it stalls out and nothing idle like a dream so it certainly seems fixed if you want to clean your engine and fuel injection system you can keep it in a lower gear even though this really doesn't have gears it's a pretend second gear but when we're going 40 m an hour we're going about 4,000 RPMs drive it that way for a half an hour 45 minutes It'll generally do a pretty good job cleaning stuff so there you have it a smooth idling engine it's not cheing a little bottle of Bernie's cleaner and the fuel tank and an air filter and the car's running like a top now sometimes it's just the simple things that can fix a car dirty air filter some carbon built up in the engine because realize this particular car being a partial zero emissions vehicle runs relatively lean and if you get any little bit off when you come to a stop they can conch out when you go on a highway speeds you can really lean them out you're going fast the engine spinning so a little bit off isn't going to hurt it but with one of these if you're just a little bit off at idle it can conch out and then just a new air filter and a little cleaner can fix it so this Outback really wasn't a bad deal 100 something th000 miles still runs good now it's not stalling out but it was running almost perfectly hardly any fuel trims at all some of it was Zero no adding or subtracting fuel so rather than taking it to the dealer where they probably would have charged them a million bucks to do all kinds of up stuff all I had to do is change the air filter and they L A Cleaner in a tank and that's why I make these videos to show people how they can save money most mechanics charge 150 to 200 bucks an hour right there's a lot of stuff you can do yourself with just a little bit an hour car doesn't stall out anymore Easy Fix Plus now he's going to be happy knowing that I looked at the engine and the transmission data and saw it's actually in pretty good shape I'm not a CVT fan and that weird fake Gear 1 2 3 4 5 6 seven eight I mean they're faked there's no gears in the transmission kind of a weird design but I do have to say it did let me clean it faster by leaving it in the fake second gear so it spun faster when I was driving at 40 and it cleaned it off and here's some bonus questions and answers Jose male says Scotty my car shakes in reverse gear Scotty I got a Civic 5-speed automatic transmission it VI Ates and shakes when I put it in reverse it only happens when I started the first thing in the morning when I set it in reverse doesn't do it in forward only backwards and only first thing in the morning you're saying it doesn't do it when you start it up put it in drive and drive okay but it only does it in reverse right so right away it has to have something to do with the transmission right because if it was in the engine the fuel injection the ignition system it's going to do the same thing going forward as it is backwards the only thing you put it in reverse it does is is it puts the car in Reverse odds are your transmission has some internal problem that when you put it in reverse vibrating because it's straining the engine too much right now do this though on an unlikely scenario but I've seen it happen once in a blue moon check the motor and transmission mounts cuz when you're going backwards it's going in an opposite direction and maybe one of the transmission mounts is worn check that they're just Rubber and you could replace the mounts it could be the mounts but it has to be something to do with the transmission so check the mounts first and pray it's just broken mounts making a check cuz if not it means your transmission is starting to go out because otherwise it would do it in drive too if it was in the engine or ignition or fuel system because it's running the same thing the engine does not run backwards when you're in Reverse only the transmission so if you never want to miss another one of my new car repair videos remember to ring that [Music] Bell [Music] nah

Channel: Scotty Kilmer

Views: 475,268

Keywords: auto, auto repair, car, car diy, car repair, cars, diy, how to, mechanic, repair, scotty kilmer, car review, fuel cleaner, what type of fuel cleaner, cleaner fuel, fuel system cleaner, fuel treatment, fuel additives that work, fuel additives for cars, how to use fuel cleaner, do fuel cleaners work, do injector cleaners work, fuel additive testing, fuel system additive, do fuel additives work, does gumout work, fuel, additive, fuel additive test, how to clean fuel injectors

Id: 9mjFEK7MZt8

Length: 10min 7sec (607 seconds)

Published: Mon Jan 29 2024