fuel injector cleaner?

[gw84]

I use fuel injector in my 93 lumina (3.1L) and I was wondering if anyone has any opinions about using it in an '99 LTZ (3.8L). Would it affect anything (negatively)? I'm just one of those people who questions everything before I do it. so, thanks again

[maxwedge]

Originally Posted by gw84

I use fuel injector in my 93 lumina (3.1L) and I was wondering if anyone has any opinions about using it in an '99 LTZ (3.8L). Would it affect anything (negatively)? I'm just one of those people who questions everything before I do it. so, thanks again

Do it, Seafoam or Chevron Techron for the tank additive type.

[Blue Bowtie]

Either of those should work, except for the SeaFoam. Most injector manufacturers (including GM/Rochester, Hitachi, Denso, and Bosch) don't recommend running water through their injectors. Even though SeaFoam is only about 10% water, it's probably not a good idea.

[richtazz]

Another pour-in that I've had good luck with is Lucas.

[gw84]

what about prestone fuel injector cleaner? It's what I use in the 93 lumina...good so far!

[tblake]

yeah, i've never really had any sort of luck with anything like that. Eithe good or bad. I did burn up an O2 sensor in my 90 lumina using octan boost "safe for all O2 sensors", (my ass). In My opinion, your money is better saved on that crap, and spent on gm top engine cleaner. Disable the fuel pump by pulling the relay, sturt it and let it run till it dies, hook this stuff up to the shrader valve on the fuel rail, and start it up and let it run on this stuff. Smokes like hell, but it'll get the job done.

['97ventureowner]

Here is a copy of one of my posts in the Venture forum I posted back in April of 2005. Hope any info in the post can help you make your decision,"If you are going to add any cleaner in your tank DO NOT put it in an empty tank. Put the cleaner in a full tank of fuel, or as you prepare to fill the tank at the gas station. Fuel injected vehicles use an electric fuel pump in the tank. The pump passes the fuel through the pump windings to cool the pump. The fuel cleaner can eat the varnish insulation off the fuel pump armature windings and damage the pump, or rendering it useless. Auto manufacturers make sure that the additives found in pump gas won't hurt the pump, but do not run any tests with the aftermarket cleaners. Sometimes the apparent damage to the pump from adding the fuel cleaner on an empty tank may take a few days to manifest itself, thereby posing the risk of becoming stranded. Use the fuel cleaner as little as possible. Constant unneccessary use can accelerate problems with fuel pump failure. Not all aftermarket fuel additives are harmful, but why take the chance in discovering the one you are using is one that will eventually cause damage?"
BTW, when I do use fuel injector cleaner, I now use Lucas brand products, a couple of my other mechanic friends use it and told me about it, and it seems to work out all right, and it's cheaper than BG products.

[tblake]

thanks for the valuable insights. It seems i have heard of this happening also to the coil windings of fuel injectors also, eats away at the insulators between the windings and shorts the fuel injector out. Very possable it could also happen to a fuel pump too.