Hi!
I was trying to clean the throttle body (and eventually the EGR valve) on my 2000 Mazda 626 ES V6.
I got into the throttle body, and noticed that the gasket was virtually black and the top part disintegrated the second I opened the manifold.
I tried to remove the whole throttle body (to get to the valve easier) and couldn't quite get it lose. I think the coolant hose below the throttle body was still attached.
It was getting late, so i resigned to just leaving it, putting everything back and getting a new gasket to install later when I pull it apart again to clean everything for sure.
However, when I put everything back and started the car, I got this awful idle: https://drive.google.com/file/d/0B3OMmL31IzRHRjVPQ0FjQ0xSQ2c/view
My guess would be that there is a vacuum leak (because of the gasket) which is causing the rough idle, or maybe the throttle valve got stuck with the buildup (there was quite a lot, as my car has 230k miles) and can't move as it had before I opened the throttle body up?
Or maybe because I didn't retape the intake manifold there is a vacuum leak there (I was going to retape it after putting a new gasket on).
Reading all of the other posts, I realize that I may not have had to remove the entire throttle body to clean it, but that wouldn't solve the problem of the gasket.
As an aside, I gave the throttle body a little effort when trying to get it off... potentially jerking the throttle cable wouldn't cause this, would it?
This is a bit scary for a novice like myself and any help would me much, much appreciated.
I had to briefly reverse and drive my car in the driveway, and it didn't seem to lose power, but the idle was definitely pulsing and rough.
The car would also start up fine and sound fine for the first few seconds, then the pulse would slowly kick in. Lastly, I might have inadvertently touched the air bypass screw, but I later tightened it all the way and loosened it as much as I could with the same result.
Thank you so much,
Ty
I was trying to clean the throttle body (and eventually the EGR valve) on my 2000 Mazda 626 ES V6.
I got into the throttle body, and noticed that the gasket was virtually black and the top part disintegrated the second I opened the manifold.
I tried to remove the whole throttle body (to get to the valve easier) and couldn't quite get it lose. I think the coolant hose below the throttle body was still attached.
It was getting late, so i resigned to just leaving it, putting everything back and getting a new gasket to install later when I pull it apart again to clean everything for sure.
However, when I put everything back and started the car, I got this awful idle: https://drive.google.com/file/d/0B3OMmL31IzRHRjVPQ0FjQ0xSQ2c/view
My guess would be that there is a vacuum leak (because of the gasket) which is causing the rough idle, or maybe the throttle valve got stuck with the buildup (there was quite a lot, as my car has 230k miles) and can't move as it had before I opened the throttle body up?
Or maybe because I didn't retape the intake manifold there is a vacuum leak there (I was going to retape it after putting a new gasket on).
Reading all of the other posts, I realize that I may not have had to remove the entire throttle body to clean it, but that wouldn't solve the problem of the gasket.
As an aside, I gave the throttle body a little effort when trying to get it off... potentially jerking the throttle cable wouldn't cause this, would it?
This is a bit scary for a novice like myself and any help would me much, much appreciated.
I had to briefly reverse and drive my car in the driveway, and it didn't seem to lose power, but the idle was definitely pulsing and rough.
The car would also start up fine and sound fine for the first few seconds, then the pulse would slowly kick in. Lastly, I might have inadvertently touched the air bypass screw, but I later tightened it all the way and loosened it as much as I could with the same result.
Thank you so much,
Ty
