Low Boost, Lag? Diagnose the Turbo in your Car, Truck, or SUV

Is your turbo not working correctly? If your vehicle is feeling sluggish, or is making odd noises, it could be the turbo. In this video, Andy shows you some diagnostics you can try on your own turbo.

🔧 List of tools used:
• No Tools Needed

⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[AAuto]

√ *Watch the Video*
√ *Do it Yourself*
√ *Save Money*

[XenoEXTornado]

Straight to the point. Not making a video unnecessarily long. Thank you.

[DubbTV]

1A is one of the best car channels on YouTube. I’ve been watching them for years! They also inspired me to start a youtube on Cars! Keep up the great work guys!

[christophercarson]

My car wasn't boosting correctly due to the gasket from the manifold to the turbo being blown in half. I fixed this yesterday and today took it for a hard short drive. It was boosting great. 1.5 bar and holding. But on my way back it was peaking at 1.5 and holding 1.0 bar. It shouldn't have any boost leaks either as my charge pipes are bevelled. Clamped and glued. So tomorrow its time to pull it all apart (again) 😭

[DiscipleofChrist]

"If the waste gate is closed, your car will go faster."

Me: and that's exactly what I want.

[tennisfitapp]

Anybody can suggest? XC90 D5 2008 - sometimes drives like new amazing - sometimes just goes sluggish like having no turbo plus makes hissing noise when taking my foot off pedal. Then I stop turn car off and on again and it drives like magic again.. Dont get it.. anybody? Thanks 🙏

[stevenmann]

Really helpful stuff, thanks John Malkovich!

[ابنثعلب]

what is the difference between waste gate function, and blow off valve function, are they both have the same function which is getting rid of excessive pressurized air, and if they have the same function why to use two devices that have the same function?

[adal]

Wow that is so cool how u guys took of some parts :

[alexis]

My mechanic told me on my TDI that the gasket of the BOV does not work would that fix be easy if it only is the gasket or would the whole turbo need to be replaced I just got a Whole new one some months before.

Polo TDI 1.2 2012

[ChristinaStachura-jnpl]

Quick question the Chevy Cruze diesel turbo is tight fan

[UTPP]

I have a question which you might know the answer for. My Ranger turbo wasn't making boost, there was a fluttering noise coming from under the hood when accelerating. A mate said I needed a new turbo so I fitted a new one. The problem was still there. I then replaced the manifold air pressure sensor which fixed it about 80% when driving around town. As soon as I dive at a speed of 80/100kms is like there is a restrictor fitted to the accelerator. There is no power or boost when travelling at that speed. Occasionally there will be a surge and it takes off like a rocket, almost like a solenoid or wire starts working. Any suggestions?

[timothysummers]

the rubber coupler on the hotside of mine keeps blowing off. I'm guessing a stuck open waste-gate valve?

[mersuman]

Hey. I have such a problem that sometimes after faster acceleration at idle and at low revs, the boost pressure gauge shows negative pressures until I press the gas and the pressures rise again. This usually happens when the car is started when it is warm, never when the engine is cold. Where is the problem? I asked that for many people, and nobody knows what this problem is 😒

[luperodriguez]

Hey...my name is Estevan. Recently I got a 2021 Buick Encore GX. She just told me her check engine went turned on. She drove to the Auto zone in San Antonio. Where they told her it was her turbo. I'm not sure what they checked, or if they checked a code? She found out it's expensive and dealer part only. We should be covered as we have a out 6 000 miles factory warranty and and extended warranty as well. She was worried about driving car home/ work...she drives and hour round trip every day. I asked her if the car was struggling or anything like that. No it's driving ok. So can someone let me know. She'll have to run it to dealership tomorrow morning or after work. Thanks for a speedy reply!!?

[tonymaldonado]

Idk about my turbo when I accelerated in the night way it Spools up and down like it gains power and loose??

[joker]

What is normal turbo boost pressure? Bmw 525d 218hp

[yasindaud]

How much pressure doesTurbo devlop at out let and inlet pressuretell me in bar .

[mkillen]

How much is it to replace the turbo on my 2012 F150 eco-boost? Thanks

[MJ-yukw]

All of a sudden my turbo started working at 4000rmb . It used to activate at 2000rmb . What could be wrong here ?