1996 starting problems - Page 2 - Blazer Forum - Chevy Blazer Forums


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

Closed Thread
 
 
 
Thread Tools Search this Thread
  #11  
Old 01-19-2006, 04:07 PM
 
Join Date: Nov 2005
Location:
Posts: 318
ivannj is an unknown quantity at this point
Default RE: 1996 starting problems

Some times when I turn the ignition to on I do not get any light on the dash and if I tried to turn it on it will not. I would have to turn the key off and on to make sure the light on the dash turn on and then the truck turns on. Does this happen when it does not want to start?
  #12  
Old 01-19-2006, 04:37 PM
swartlkk's Avatar
Administrator

 
Join Date: May 2005
Location: Waterloo, NY
Posts: 40,500
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 RE: 1996 starting problems

ivannj, that is a tell-tale sign of an ignition switch problem (key switch). Sooner or later, it just won't do anything.

smplgrn, I'm wondering if you don't have an intermittent bad connection on the fuel pump relay. All that it would take would be alittle bit of corrosion on the trigger line (either 12v+ or ground) and it wouldn't trigger the fuel pump to turn on. I just recently traced a similar problem down to a faulty connection at the fuel pump relay on a '93 Ford E350 moving van. Cleaned out the connectors with a very small set of files that I bought specifically for this purpose and the thing fired to life after sitting for over a year. See the trigger lines for relays are 12v+, but very VERY low amperage because the trigger only has to energize an electro-magnet to pull the contacts on the high amperage side together (that click you hear when a relay switches).

During this cold start problem do you hear your fuel pump whirl to life when you turn on the key?
  #13  
Old 01-19-2006, 06:14 PM
Thread Starter
 
Join Date: Jan 2006
Location:
Posts: 10
smplgrn is an unknown quantity at this point
Default RE: 1996 starting problems

The saga continues

Today I tested the fuel pressure and it was at 50-52 PSI which is to low. I have yet to use the test port to bypass the relay but as soon as the jumper vehicle get on it raises the presure to 60. Sometimes if i cycle the key a few times it raises the pressure to 60 like it should be but this isn't usually the case. I thinking/hopeing probably a bad conection at the relay or pump. i have never had a pump that just weakened a bit, usually it's all or nothing.

What is the big electrical connection block that is located right by the test port for? the previous owner had a cd change powered at this point which I now have disconected.
  #14  
Old 01-23-2006, 09:02 PM
Thread Starter
 
Join Date: Jan 2006
Location:
Posts: 10
smplgrn is an unknown quantity at this point
Default RE: 1996 starting problems

Turned out to be the fuel pump. just not enough pressure
 
 
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
1996 blazer 4.3 starting and running problem shane caines 2nd Gen S-series (1995-2005) Tech 21 01-06-2014 11:45 AM
1996 s10 hard starting hymie747 2nd Gen S-series (1995-2005) Tech 4 12-18-2010 09:55 AM
1996 blazer not starting sarahj 2nd Gen S-series (1995-2005) Tech 8 03-07-2010 11:28 AM


Tags
1996, 96, battery, blazer, chevy, fuel, line, low, pressure, problems, regulator, start, starting, vacuum, voltage

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 07:30 PM.