2nd Generation S-series (1995-2005) Tech Discuss 2nd generation S-series (1995-2005) general tech topics here.

98 blazer fuel pump?

Old Dec 28, 2010 | 02:55 PM
  #1  
plneds's Avatar
Thread Starter
|
New Member
Joined: Dec 2010
Posts: 3
plneds is on a distinguished road
Default 98 blazer fuel pump?

No Start.Pressure 62 psi when pump runs.58 when pump stops.Holds at 58 for 10 min.Have spark.Will run with the aid of carb spray but dies.Security light goes off on dash and all other lights work.All started with dead battery when vehicle sat for a few weeks.Otherwise had been running fine.No codes in system except c0222 for rt. wheel sensor.With gas from vehicle was able to start a small engine So I assume gas hasn't phased out on me.New cap and rotor. Wires fairly recent.What am I missing?
 
Old Dec 28, 2010 | 08:50 PM
  #2  
swartlkk's Avatar
Administrator
Joined: May 2005
Posts: 41,331
From: Waterloo, NY
swartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond repute
Default

It definitely sounds like a fuel supply issue. Almost like something is prohibiting the injectors from opening. You could back probe the injector wires and test with a noid light to confirm that theory.
 
Old Dec 31, 2010 | 07:53 AM
  #3  
plneds's Avatar
Thread Starter
|
New Member
Joined: Dec 2010
Posts: 3
plneds is on a distinguished road
Default Checked with noid light

Well I checked with a noid light and each injector plug pulsed.Would I be able to check injectors themselves by using pressure gauge.I would build up the pressure then remove fuel pump relay then crank engine and see if pressure drops hence meaning injectors plugged or not?
 
Old Dec 31, 2010 | 08:59 AM
  #4  
Captain Hook's Avatar
Moderator
Joined: Mar 2009
Posts: 8,453
From: Belleville, Michigan
Captain Hook is a jewel in the roughCaptain Hook is a jewel in the roughCaptain Hook is a jewel in the roughCaptain Hook is a jewel in the rough
Default

Can you access the injector balance test with your scan tool? Gotta be a good scan tool, the cheapies won't access it. If so, that's the easiest way to compare/check injector performance.
 
Old Dec 31, 2010 | 09:23 AM
  #5  
plneds's Avatar
Thread Starter
|
New Member
Joined: Dec 2010
Posts: 3
plneds is on a distinguished road
Default

No unfortunately not.But thanks
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BouncingRadical
2nd Generation S-series (1995-2005) Tech
14
Nov 27, 2015 12:30 AM
cide
2nd Generation S-series (1995-2005) Tech
1
Nov 7, 2009 01:26 PM
upblazer95
2nd Generation S-series (1995-2005) Tech
4
Mar 8, 2009 07:15 PM
Lckyctch
Engine & Transmission
5
Dec 30, 2007 05:38 PM
mytruck2
2nd Generation S-series (1995-2005) Tech
11
Dec 13, 2006 04:50 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 07:14 PM.