1st Generation S-series (1983-1994) Tech Discuss 1st generation S-series (1983-1994) general tech topics here.

93 4.3 TBI stalling

Thread Tools
 
Search this Thread
 
Old Jun 4, 2013 | 06:15 PM
  #11  
1sttimejimmyowner's Avatar
Super Member
Joined: Apr 2012
Posts: 1,279
From: Port huron,Mi
1sttimejimmyowner is on a distinguished road
Default

You will know if theres a vacume leak at the throttle shaft it makes a vert distguishing sound.You will hear a loud whistling noise after the engine is warmed up.I have this problem on my gmc truck with tbi.I have to buy a throttle shaft repair kit.
 
Old Jun 4, 2013 | 08:12 PM
  #12  
AndrewO1991's Avatar
Senior Member
Joined: Jan 2011
Posts: 546
From: Auburn, Ga
AndrewO1991 is on a distinguished road
Default

Sorry, I missed the part where you checked for vacuum leaks, if you can find someone with a scan tool that will show live data on your OBD1 system, Something isnt working right. I would test the TPS, that could be done with a voltmeter.
 
Old Jun 5, 2013 | 09:05 PM
  #13  
adam7's Avatar
Thread Starter
|
New Member
Joined: Dec 2010
Posts: 85
From: Georgia
adam7 is on a distinguished road
Default

Thanks guys. Guess Ill have to take her into work and plug her up to the scanner. I don't hear any hissing noises after warm up. The injectors do seem to be firing a nice cone mist. I didn't see any drops or defined lines. But I will run a cleaner through the system and see if that helps.
To me I would think it would have to be in the same "Circuit" since it runs fine with the ignition base timing wire disconnected but then again Im not a master tech lol. Slowly working on it after I get this figured out.
I will plug her up tomorrow and let yall know what I see on the scanner.
Thanks Andrew and 1sttime
 
Old Jul 9, 2013 | 07:08 PM
  #14  
adam7's Avatar
Thread Starter
|
New Member
Joined: Dec 2010
Posts: 85
From: Georgia
adam7 is on a distinguished road
Default

Scanner didn't tell me anything... go figure lol. Got a new fuel pressure regulator with no change. So now Im back to the basics. Gonna test the Dizzy again and maybe it will like a AC Delco one.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
deathman
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
3
Aug 14, 2011 11:25 PM
Pruney81
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
3
Jul 13, 2011 12:36 PM
maverik78
Performance & Brainstorming
9
Apr 11, 2010 10:05 PM
90rusty
New Member Area
1
Oct 17, 2009 07:53 AM
s10blaze
1st Generation S-series (1983-1994) Tech
4
Nov 4, 2008 05:17 PM




All times are GMT -5. The time now is 11:52 PM.