LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

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Old Aug 17, 2010 | 10:34 PM
  #16  
Injuneer's Avatar
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Originally Posted by GRIDERMAN87
NO but it would tell you if the pump was even priming..... which he said he didnt know if it was or not. Wouldnt make too much sense to run a pressure check if the pump wasnt priming, you might wanna read the post instead of insulting people.
If the pump is "priming" it will develop pressure. The important thing is whether the pump is developing the correct pressure. Dumping fuel on the ground will not provide the answer. Putting a pressure gauge on the Schrader valve will answer the question completely.

Might want to back off a little......
Old Aug 18, 2010 | 08:08 AM
  #17  
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Ok maybe im being a little misunderstood, I wasnt advocating not checking the pressure, but in his post he said he didnt know if the pump was coming on, I was simply offering up the easiest way i know of to check that, which is to pull the line and see if it pushes fuel. Not bad enough advise to warrant an insult in my opinion, I mean this is a forum, if the guy I was trying to help doesnt want to do it my way that would be his choice, but I dont appreciate someone insulting me, especially when its not even their problem to begin with.
Old Aug 18, 2010 | 10:40 AM
  #18  
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I don't remember anyone saying your idea wouldn't show if it was pushing fuel.

An easier way I know of to simply press the shrader valve on the fuel rail and see if there is pressure. Instead of jacking up the car and messing with the fuel line, crawling out from under the car- turning on the key, and then getting back under to work in a puddle of fuel, wouldn't it be easier just to spend some money on a fuel pressure gauge to start eliminating issues?
Old Aug 18, 2010 | 11:07 AM
  #19  
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Yea, But if you dont have one laying around it is a good start to see if the pump is functioning, and if your having a fuel issue its prolly a good idea to change the filter, even if its not the cause so pulling the line would be a step you would have to take in that case, its just the way I have always checked to see if a pump was functioning, may not be the best way but its way I have always done it. My issue was that someone would feel the need to insult me for giving someone an idea, of a place to start, just saying all that wasnt needed
Old Aug 18, 2010 | 05:01 PM
  #20  
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For God's sake give it up. No one insulted you.
Old Aug 19, 2010 | 06:48 AM
  #21  
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Thank you- now hopefully we can get past this little 'tiff' and back on track with the OP.

Glad to hear its back up and running at least. Still your #1 priority should be getting the codes read and see what the car is telling you it thinks is wrong...its still the best place to start.
Old Aug 19, 2010 | 08:57 AM
  #22  
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Originally Posted by Procharged94Lt1
Thank you- now hopefully we can get past this little 'tiff' and back on track with the OP.

Glad to hear its back up and running at least. Still your #1 priority should be getting the codes read and see what the car is telling you it thinks is wrong...its still the best place to start.
Thanks. Well i have since brought the car to the garage to get the codes read and see what they could find. I hope to get it back soon and will be sure and post back the problem/s they find.
Old Aug 19, 2010 | 10:35 AM
  #23  
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Ok so the car is back in my driveway and it is still acting up. The garage must not know what they are doing cause they gave up. They said the car starts fine with no codes and after about 1 min the SES light comes on and shows codes 51 and 53.
Old Aug 19, 2010 | 01:54 PM
  #24  
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Code 51 - PROM/EEPROM - Faulty or Incorrect PROM/EEPROM, Diagnosis should be performed by a dealer service department or other qualified repair shop.

Found this link about that has a little info LINK

Code 53 - System Voltage High - Code 53 will set if the voltage at the ECM/PCM is greater then 17.1 Volts or less than 10 Volts. Check the charging system.

Def sounds like these problems are related I pulled this info from my Chilton Book for my 95. Good Luck bro.
Old Aug 19, 2010 | 02:03 PM
  #25  
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Yea I read this link over also. The garage where I brought seemed to believe it was a short somewhere in the harness. Any possibility to this?
Old Aug 19, 2010 | 02:06 PM
  #26  
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Originally Posted by eball218
Yea I read this link over also. The garage where I brought seemed to believe it was a short somewhere in the harness. Any possibility to this?
Im the last one to ask about anything related to technical stuff man, I would check the charging system all main power wires and grounds since the book said too.
Old Aug 19, 2010 | 02:07 PM
  #27  
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But for sure buy a guage from an auto parts store or buy it and bring it back say it wasnt what u though it was haha. But yeah run a pressure test too, I kept mine because it just seems like a real good tool to have. Only thing that could have made it better is if they had a digital one
Old Sep 2, 2010 | 01:20 PM
  #28  
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Ok so here is an update on my problem. Please give me your input. I decided to bring the car to another garage to get the codes read and the following are what i got.

26, 27, 59, 73, 81, 82, & 84.

After looking on shoeboxes site i seen that all but 2 of these have to do with the transmission but I am stumped on what to do next. anyone ever seen this before?
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