96 SLS Throttle Body

Bristle brushes, old toothbrushes, block the butterfly open and use a rag stuffed into the TB past the butterfly to the manifold side (pull it out with long needlenose) and throttlebody cleaner, not carb and choke cleaner. Different chemicals.......

Don't worry about anything beyond the TB if that's what you're asking.

Thanks for the reply. Got the throttle body sparkling clean.
After thinking about the int. man. mouth as you stated Ranger, that area will not make a significant difference.
Now, back to trying to get the rear seat cushion out to get to ELC relay.
At 75 don't have the strength I used to have, so trying to figure away to make leverage work.
What a great source of info for folks like myself that cannot afford dealer charges etc.

The bottom of the back seat should have 2 bolts/washers through loops to the floor pan. The top is held by 3 or 4 spring clips which are popped with a medium sized flat blade screwdriver pushed straight down behind the cushion edge.

Vern, I don't have a FSM for a pre 2000 any longer, but I can't imagine GM putting a relay in such an unattainable place.

Vern Warren said:

Anouther thread on a little different subject than the ELC problem.
So far not getting the back seat cushion out to get to the ECL relay, so I decided to clean the throttle body while I rested, I had done this a couple of years ago but would like to ask advise on the best way to clean the mouth of the intake.
The butterfly housing assem. came nice and clean with carb cleaner, but the intake mouth has thicker harder varnish residue.
Is there a brush or tool or !~!, that some of you have used?

Click to expand...

I think you are going about this the wrong way, on my '96 SLS all the relays/fuses etc are behind the back seat, but you get at them from the trunk side. At the front of the trunk where it meets the back seat there will be 2, maybe 4 (can't remember) studs with nuts that hold a a fabric panel on to cover the fuse box, remove that and you should access the electrical on the back seat.

:bulb: Duh !!! Doesn't that "electronics bay" plastic panel unsnap and fall back into the trunk once the carpet liner is removed ???

I don't recall that being the case, but that doesn't mean much.

Reason I threw that in there is when the dealer did my OnStar upgrade a couple of years ago the whole plastic panel and modules were lying in the trunk as the tech swapped parts.

OK, got the back seat cushions out, both, to expose the relay stations.
Yes indeed, all of you were right on getting to the stations.
After I got the cushions out, I could see that it is also posible to lower the petition from the trunk side, looks like four bolts, #10 met. BUT, by removing the cushions, that gives you a clear view of all the electronics in that location and ease to work on the components. BUT, the trunk side may have been faster due to the problems releasing the seat spring hangers from the floor pan.
Now my problem is to check the ELC relays.
Does anyone know how to test or check these? This is tomorrows job, all tuckered out. Thanks as always guy's.

Easiest way is to swap it with a known good one. If the component works, then replace the relay.

Even though the post title "trottle body" I wanted to post a conclusion.
The problem with the ELC was after-all the "ELC Relay" in the truck area.
Problem corrected. I wonder how many motorcompressors have been replaced when the fault was the relay.
Thanks Ranger, Submariner, and ballstuthewall, you where right on the money..

Hey, glad it was a cheap fix. Thanks for the conclusion.