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

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  #41  
Old 09-10-2010, 08:11 AM
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Originally Posted by BresBlazy
so I got ACDELCO spark plugs but they did not have that brand in the wires...so I have not gotten them yet....will it make any differance?
Also is the Duralast brand for the cap and rotor the one that I have heard is no good?
NAPA Belden wires (dark blue) and cap/rotor are good ones. I've got em on mine, my friend Ryan and his dad use them on theirs. No problems with them. Always use AC plugs though.
 
  #42  
Old 09-10-2010, 10:19 AM
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Originally Posted by DKSDAD
I don't know about the cap since I only use GM parts since I work for a GM dealership. The display could be signs of a cluster going bad I think. Is the fan type noise coming from the right or left side of the dash? and the last noise sounds like your exhaust system makes noise as the metal expands and contracts with the heat.

The fan type noise comes from the middle, where the cd player and all that are....


Also CNYcountrykid, thanks....I will check those out.
 

Last edited by BresBlazy; 09-10-2010 at 10:21 AM.
  #43  
Old 09-11-2010, 04:27 PM
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OKKKK I had my fuel pressure tested and its at 50...I said thats low, my guy said no, thats normal...I said I dont think it is!
He gave me the pressure tester t borrow to check it when its cool and having the issue....I said so if it is low then what, he said New fuel pump.....

I am starting not to trust him....what do you guys think? 50 IS low, right?
 
  #44  
Old 09-11-2010, 05:19 PM
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If you're talking about key on, engine off pressure then absolutely too low. Work through the steps in 96+ Fuel System Diagnosis
 
  #45  
Old 09-11-2010, 05:48 PM
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i would try to isolate that p0300 misfire to a single cylinder, or left or right side engine banks, or random multiple cylinders by using a scan tool. Then you'll know what cylinder(s) to focus on. For instance say you had a misfire on cylinders 1,3 and 5. then i would look at what controls that side, I.E. o2 sensor, or leaking intake gasket. but first try to find the cylinder(s) first. It may only be a bad spark plug or wire.
 

Last edited by nemesis; 09-11-2010 at 06:45 PM.
  #46  
Old 09-11-2010, 07:17 PM
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Thanks, I will do that.....this is frustrating.
And no it was Engine ON...running.


OK, just went out and checked the pressure with the key on, engine off.....starts at 60 and goes down to 50.
 

Last edited by BresBlazy; 09-11-2010 at 07:49 PM.
  #47  
Old 09-12-2010, 03:15 PM
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Did you use the link rridle3 showed you to diagnose your fuel pressure ? It all takes time and patience.
Hopefully you can eliminate some parts replacement by following the diagnosis steps.
 
  #48  
Old 09-13-2010, 10:28 AM
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yeah, been looking at that....its odd though in the morning when its having the problem, the pressure is maybe 3-5 points higher.
I have some plans.
 
  #49  
Old 09-13-2010, 05:34 PM
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Okay, Well, remember the hammer !
 
  #50  
Old 09-13-2010, 06:25 PM
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HA HA, yes....if this doesn't work you can ship it on over!

and BTW, thank you guys!
 
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