ofcmlong

Where can I, other then a dealership, get the fuel injector assembly for a 1996 Blazer 4.3 Vin W?

tom3

I've got to the point that I avoid dealers at all costs myself. Try www.rockauto.com or www.gmpartsdirect.com. Also note that Autozone has a rebuild that is said to be pretty good but I don't know if they have the inner fuel lines that, for sure, need to be replaced. Here's a web site that really explains the deal. http://forums.s-series.org/viewtopic.php?t=2278

mjohn

Tom: Wow I am Blessed to find the out I am not alone in having this problem...I have a 1993 4.3 W series...that runs rough, idles bad, stinks much and starts hard...and gas milage is very poor...I can see this is my problem definately...I live in MN where the temp is about 10F. now so I do not have an place out of the elements...but, do you suggest I check under the Vortec Plenium...myself and attempt to diagnose the problem?

ofcmlong

the only problem i see that i'm having right now is the hard starting but the dealership told me in was the injector.

mjohn

I finally got my truck 4.3 W series into the shop...
and, on Monday I will have the problem diagnosed...then I hope to purchase the parts from gmpartsdirect...where the injector unit is about $300. and the nut kit. $40. Let me know how your turns out...and have a good weekend... :o)

ofcmlong

Mine goes into the dealership on Tuesday. When I get it back I will put it through some test to make sure that is what it was and then I'll post here.

mjohn

well I got the verdict on my 1993 4.3 Wseries
a serious fuel regulator leak...the diagnosis cost me $40. and now I am trying to order the parts needed...the Mech said it would be good to replace the whole CPI unit...and I may order the internal lines...$40. at the same time...I am trying gmpartsdirect. now...Best Wishes...MJohn

vinnie97

would you define poor gas mileage?

mjohn

poor as in less than 12mpg...raw gas dripping from exaust...

Jethro_Canada

lindertech.com also has the all the parts for the CPI injection. Great for power and fuel mileage, but expensive to fix.

mjohn

I just ordered...a new AC Delco...CPI unit from rockauto.com...and 321.22 with 2 business day delivery...I have not gotten the CPI unit yet...but and wondering will this contain the fuel pressure regulator...or will I still need to buy and install that?
I checked lindertech and they were higher on the cost for the CPI unit...but the fuel pressure regulator was 99. at lindertech...Thanks for your help Jethro...and I'll bet it is cold in Canada now...
I'm in MN and driving an old Ford Van cargotype...while I fix my Jimmy...not much comfort...

ofcmlong

well I got my car out of the shop yesterday. I haven't really had time to test it out to make sure it was fixed but so far so good. We will see in the next couple of days and I'll post back.

tom3

mjohn; The CPI you'll get is an updated model with regulator built in all one unit. Those inner fuel lines are a problem though, you'll see what we mean when you get in there. Only difficult part is the bolt in the fuel line retainer at the rear of the intake, tight and hard to get to.

comp

thats much fuel going threw kill a O2 senser???????

Jethro_Canada

That bolt on the back of the intake is a bi@#h!, My only advice is to get a new set of torx when you go to get it off. mine stripped with a new bit and we had to beat on the bracket to bend it out of the way to get one of the lines out so we could get the vise grips on the bolt. Very bad design, I would like to smack the guy who came up with that one. a regular bolt would have been much better. Just be care if you end up doing that, wouldn't want to crack the intake manifold.