knock sensor

[Guest]

Hi all hey can anyone tell me how long it would take. To replace a knock sensor on a 1999 b4?

[Durty-Sanchez]

An hour ... if you have the right stuff for the job.

- Intercooler off

- Long flexi-extension

- A large vocabulary of expletives

[Guest the_return_of_the_jedi]

 Durty-Sanchez said:

- A large vocabulary of expletives

this

also a magnetic telescopic thing helps

[Guest]

 Durty-Sanchez said:

An hour ... if you have the right stuff for the job.

- Intercooler off

- Long flexi-extension

- A large vocabulary of expletives

we have most all the tools

expletives - sorted

long extention sorted too

thank you!

[Guest]

hey there, if u dont mind, a writeup on this wud be nice as ive noticed a lot of people having this problem. it wud be very helpful ;D

[Guest]

hi guys, very sorry but I for got to take good photos for this one,

what a pain in the ass this was, got getting everything out, thats pretty straight forward, but getting the new sensor in was a mission, we had problems with the threads in the block for the sensor bolt, got it in eventually after cleaning both the bolt hole and the threads on the bolt it self.

this big problem is that its tough to get straight down in the head of the bolt because of the intake. and there is nlike..NO room.

thank god my wife has small hands.

intercooler is pretty straight forward coming off, no drama there, you also need to disconnect the vacume hoses from the black box of doom, dont forget to mark the hoses 12 mill 12 star socket did the trick for us, but it was really on there and took some effort to get it off, try not to round the head and just take your time and care.

there are several coolent hoses in the way, we used an coat hanger to pull them out of the way and just made hooks on each end.

if you dont mind bleeding the coolent system you can remove these hoses but we just did a collent change on this car so we chose to just pull the hoses as far out of the way and we could.

Make sure you clean the bolt and bolt hole thoughroughly, then just be patient and try to fit the bolt back through the sensor when you have it alighned on the pad on the block.

old , new

[Guest boostin]

You know the hoses come off the black box in blocks eh? Take that 10mm bolt off the top, lift off the retainer, and the block unclips.

[Guest]

 boostin said:

You know the hoses come off the black box in blocks eh? Take that 10mm bolt off the top, lift off the retainer, and the block unclips.

hi, can you clairfy please? "You know the hoses come off the black box in blocks eh" we took off 3 vacume hoses from the black box of doom that went to the intercooler and that was it did we make a mistake? ???

[Guest boostin]

Go take a better look at the black box. There is a 10mm bolt above the hoses. Remove that. Lift off the metal bracket. The hoses are connected in groups of 4 to plastic blocks that unclip from the black box.

You didn't make a mistake, just did it the slightly harder way.

[Guest]

oh.....................thank you very much, I will look at it, btw the knock sensor replacement fixed the issue with the friends car we were having (no boost) it now is back running correctly and runs with full boost