Posted: Sun Sep 16, 2007 5:12 pm
Subject: Hello Rasmataz
If you don't mind could you please review my post "1995 Chevy Blazer 4.3L Fouling spark plugs" posted on 9/15/07. I read some of replies to others. The plugs were in only for 1000 miles. After reviewing some other posts it seems that maybe the fuel pressure regulator might be bad? I found one from Dorman 55162 for the 4.3L engine. Have you ever installed one of these? Also I'm figuring that if the plugs were so fouled (pretty black) that the injectors must also be looking pretty bad. Any thoughts on replacement of fuel pressure regulator and cleaning the injectors? What's the best way to clean the injectors? Thank you in advance. Colin
Do you see VORTEC on top center of engine.
4.3L w/CPI spider man set up or it has TBI
Mam, You have to remove the upper plenum-if its the regulator the passenger side would be washed-up. The regulator comes with a kit-you have to drilled out the old one. Don't let nobody tell you -that you have to get the whole CPI unit its only about 40 bucks or so.
It doesn't have an individual injectors-its all confine in 1 unit with plastic tubings.
Sunday, September 16th, 2007 AT 8:33 PM