This is not the correct way to clean the TB. It should be scrubbed with the engine off and the throttle plate wide open to clean it good.pketch said:It takes a can of intake manifold cleaner. GM sells a very good product. Pull the snorkle from the throttle body and with the car running spray the full can in. This does require you to operate the throttle manually. It will want to stall so you will have to keep the RPMs up. Spray until it begins to load up and then stop. After it is running smoothly again spray some more. If there is a lot gunk on the butter fly make sure you get that cleaned off. Do not spray the MAF sensor(Mass Air Flow) Of course after you have done that, a can of 44K (BG product) in a full tank of quality gas every few fill ups will keep not only the throttle body clean but will also keep the intake, injectors / O rings nice and clean as well. Before doing any maintence such as this check with your GM service department or a trusted technician
Yeah, I'm with Ranger on this one, and JimD's throttle body cleaning advice is correct. I've done it 4 times. It won't help WOT at all unless the blade is crudded up with huge chunks of stuff (highly unlikely), but idle should be more stable perhaps and the throttle won't stick closed. Once you've done this, you might want to disconnect the battery for about 60 seconds to reset the learned idle value. With the clean TB, it might pull a little more air through at idle and throw off the IAC value. Battery disconnect will make it relearn from scratch.Ranger said:The stuff you are talking about is called Seafoam. Never used it but I don't think it is neccassary.
All you should need to get at the rear plugs is a spark plug socket and an extention.
Maybe he put Bosch platinums in there... That's a good way to make it run like crap. :nono:dhs said:Weird, I'm pretty sure wot feels alot better now. Before I cleaned it, when I put the pedal to the floor it hesitated for a while, now there isnt really any hesitation and it builds up speed faster. I also cleaned out some of the sensor connectors while I was at it so maybe that did the trick.
I did a tune up on the car recently, but I'm having doubts about the guy that did the job. I asked him to give me the old plugs and now that I look at them theyre denso brand, which have no place in a gm car. I suspect the guy might not have replaced them at all, since I just left him the car and didn't actully see him change them. Ever since that tune up the car's been running a little off and shaking at idle sometimes.
Yeah, get those Bosch plugs out of there. Junk, pure and simple. The AC-Delcos cost a few bux more, but they are known to work well. Mine started faster and runs much better now that I pulled those pieces of $h1t out of there. That they're German doesn't speak to their quality at all...dhs said:Yeah I vaugely remeber him saying something about Bosch plugs being good since theyre German. I think he might have put those in. What plugs would you recommend? I see champion platinums are alot cheaper then ac delco, would they be good to use or should I stick with the delco plugs?