Intake Manifold Vacuum Leak - Toyota Corolla / Vibe / Matrix

Short video describing how you might find a leak in an intake manifold using a smoke machine and your scan tool. This is a 2007 Toyota Corolla S with a 1.8L. Very similar to the Vibe and Matrix. The check engine light was on with a P0171 Lean Bank 1 Code. Really common and a really easy fix. Leave your questions in the comments and subscribe to our channel.

[alv]

I like the way you bridged the methods for diagnostics with and without scan tool. You provide a great service.

[littleshopintheshed]

Love these older videos, so awkward compared to the new videos!! Thanks for all the work you do to help us out.

[DougHinVA]

A 2000 Corolla is known to have gasket leaking when it is old as a common problem. Inability to climb mild inclines and rough running is odd for a Toyota 1.8L engine. I replaced fuel injectors (rebuilt, warranted set for $130) and coils and got platinum NGK plugs and at last... had the intake manifold GASKET replaced for fairly cheap. Problem disappeared on GASKET replacement after the 3 other things were done. At 275K miles on the odometer !

[jasonargone]

I am impressed, you did a great job and you sure simplified the processes of finding a leak. Thanks

[DougHinVA]

my 2000 Corolla had this problem and a replacement of the gasket resolved it immediately. Not plugs, coils, injectors, or cleaning the PCV and MAF valves along with throttle body and IAC

[nicholaselias]

Just diagnosed a 2000 celica with the same issue!!! Almost was going to call the O2 sensor because it would lag but did the brake fluid test and it tested positive for a intake leak. Good info!!!!

[geojor]

great, and the smoke was visible, the fuel trim test was great too, well done...

[jammin]

I have an error code po171 and praying this is the fix. A new gasket is better than the nightmares I can now imagine. :(

[N]

Could see the smoke. Thanks for the video.

[spicythai]

I have 2016 toyota corolla with the same code and same engine. Going to change the intake gasket. Thanks for the video.

[ricfer]

You are Awesome...your videos are very helpful!

[carlosmera]

Very helpful videos, enjoy watching it
Thank you south main auto repair

[dondale]

Cool Deal! Won't buy a smoke machine for just a few vehicles, but I can get brake kleen or carb clean CHEAP!

[G-spotGeorge]

sweet I don't have a smoke machine but I do have a $20 bluetooth dongle and torque this should be easy

[doomedalready]

Very good information  Thanks,    I will try the soapy water,      I will share too

[mikan]

Excellent video
I have 1nrfe dvvti
Low rpm lack of power need to press gas more and sound from exhaust gogogo
No rough idle
No codes
No engine light
No white smoke
39mpg atm
Change spark plugs air filter cleaned throttle body inside out
Any recommendations
Its an electronic throttle body can drive 70mph at 3500rpm but lots of noise

[TaliAlba]

Very helpful. Thanks for the shared knowledge.

[nharp]

Is it possible a leaky intake manifold gasket would cause an oil smell in the vehicle while driving with the heater on? 2003 Vibe Base

[iozel]

Hi, great video thanks. I have the problem, which I understand is quite common on these, where the revs at idle, surge up & down around 2k revs when the engine is first stated, particularly from cold. I understand that a leaking intake gasket can be the cause of this problem, but my fuel trims look normal (around 0). I was wondering if you know of any other causes of this surging idle problem? Many thanks.

[СергейРепенёк-рб]

Сделал все как на видео только когда собрал забыл вставить фишку и выскочил check engine, но потом все стало нормально когда вставил обратно.