Question about Chevrolet Cars & Trucks
If it is throttle body injected, average is 20-25 psi. Multi-port injection is 40psi.
Vortec engines such as the 4.3 should be 60psi or more.
Posted on Dec 08, 2012
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Put an injector noid light at the injector plug terminals to see if your getting a signal from the PCM(computer).If not try to find a computer from the same vehicle that works and swap it into yours to check.A PCM swap will take about 15minutes.
Posted on Sep 23, 2009
SOURCE: i changed plugs a wires
Your problem is most likely a sensor problem. Did you get a check engine light? It could also be a fuel pump. These vehicles are verry sensitive to even slightly low fuel pressure. Once the pump starts to get tired they just start running crappy followed by stalling and hard starting. Id start testing cheap stuff first. Like the O2 sensor. If it has been a while or never changed then it needs changed. Should be changed every other year or so to keep it working in tip top shape. cheap O2 sensors may have to be replaced more often like once every year. Next I would look at the MAF sensor. These often get a bit dirty inside and affects the ability for it to detect the proper amount of air. Clean it with a MAF safe cleaner and it just might do the trick.
Posted on Aug 22, 2010
Tips for a great answer:
Dec 26, 2014 | 1995 Chevrolet C2500
Mar 31, 2013 | 2004 Chevrolet Suburban
Feb 14, 2013 | 1999 Chevrolet Suburban
Nov 17, 2012 | 1995 Chevrolet Suburban
Apr 30, 2012 | 1987 Chevrolet Suburban
Feb 14, 2012 | 2001 Chevrolet Suburban
Nov 03, 2008 | 2000 Chevrolet Suburban
30 people viewed this question
Usually answered in minutes!