Anyone who has installed the GM knock sensors!!

by **krook** » Mon Jul 21, 2008 12:02 pm

First of all: these are a bitch to remove. anyone know what size socket will get these things off?

Second: the hose that's in the way--did you remove it or did you just cut into it and replace it? Haynes recommends replacement if you have access to it since it's such a hastle to get to.

by **Midias** » Mon Jul 21, 2008 12:15 pm

If the GM are the same as the stock you want a 1_1/16 socket and I replaced the coolant hose because it was already exposed.

by **krook** » Mon Jul 21, 2008 12:25 pm

can you purchase this coolant hose anywhere? like Checkers?

i'm thinking about just cutting into it and replacing it since it's such a bitch to remove AND it's in the way of the knock sensors...

by **Midias** » Mon Jul 21, 2008 12:29 pm

I found it super easy to remove the hose after I got in there. All you really need is a length of 1 inch universal coolant hose. My store was out so I just compared it to the preformed hose on the shelf to get one that fits. Just make sure it is not too loose or it will leak. Mine was a very snug fit and I even could reuse the stock clamps.

http://www.solaraguy.com/viewtopic.php?t=40671

by **krook** » Mon Jul 21, 2008 12:42 pm

okay cool thanks! i read the info in the link you provided as well and it says the knock sensors require a 27mm socket for removal. (just posting info in this thread for future reference) i'm assuming it's the same size for a Solara as for a Sienna.

and i'll check the local Checker's store for the hose--mines refuses to come off, so i'ma just cut it off.

by **Midias** » Mon Jul 21, 2008 12:58 pm

When I went to the parts store they did not have a 27 mm socket.

Also 27 mm is 1.062992125984251968503937007874 inches
1.0625 or 1_1/16 works just fine.

by **krook** » Mon Jul 21, 2008 1:51 pm

Midias wrote:When I went to the parts store they did not have a 27 mm socket.

Also 27 mm is 1.062992125984251968503937007874 inches
1.0625 or 1_1/16 works just fine.

haha, yeah, i know they're the same. it's just that all my sockets are metric instead of standard. thanks again for the info/link!

by **ASG14** » Mon Jul 21, 2008 2:21 pm

Just use a large ratchet. Thats what I did.

As for the coolant hose, just get it at the dealer. It's like $15. Also, if original, replace the Manifold to head gaskets. If you go to put the manifold back on, and it does not seal, that's a whole nother set of issues.

by **DatSRBoi** » Mon Jul 21, 2008 2:43 pm

ASG14 wrote:Just use a large ratchet. Thats what I did..

amen

by **Midias** » Mon Jul 21, 2008 3:10 pm

1/2 inch craftsman ratchet did it for me then a similar tq wrench for reinstall.

by **krook** » Mon Jul 21, 2008 5:09 pm

ASG14 wrote:Just use a large ratchet. Thats what I did.

As for the coolant hose, just get it at the dealer. It's like $15. Also, if original, replace the Manifold to head gaskets. If you go to put the manifold back on, and it does not seal, that's a whole nother set of issues.

okay cool. thanks for the reminder. i just ordered the gaskets.

Also, the GM knock sensor kit COMES WITH ONE WIRE on the harness; the OEM harness has 2. how do you wire these up?

Anyone who has installed the GM knock sensors!!

Anyone who has installed the GM knock sensors!!

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