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

BIG PROBLEM WITH CAR, PLZ HELP. IM SO STUMPTED. Shoebox, Injuneer inside

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Old Oct 17, 2003 | 11:58 PM
  #16  
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check your fuel pressure. could be a faulty fuel pressure regulator (blew out the valve). smell your oil make sure it doesn't smell like gas. if it does change your oil before you scuff up your cylinder walls. take all the plugs out overnite to let the gas evaporate and clean the plugs as best you can. put everything back together and see if it starts.
Good Luck!
Old Oct 18, 2003 | 12:02 AM
  #17  
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Originally posted by BlkZ28M6
check your fuel pressure. could be a faulty fuel pressure regulator (blew out the valve). smell your oil make sure it doesn't smell like gas. if it does change your oil before you scuff up your cylinder walls. take all the plugs out overnite to let the gas evaporate and clean the plugs as best you can. put everything back together and see if it starts.
Good Luck!
could blowing the valve shake the car
Old Oct 18, 2003 | 12:03 AM
  #18  
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Originally posted by BlkZ28M6
check your fuel pressure. could be a faulty fuel pressure regulator (blew out the valve). smell your oil make sure it doesn't smell like gas. if it does change your oil before you scuff up your cylinder walls. take all the plugs out overnite to let the gas evaporate and clean the plugs as best you can. put everything back together and see if it starts.
Good Luck!
That's a good suggestion. The pop you heard could have been the diaphragm in the regulator blowing (since it is right close to the firewall). That would cause the engine to suck fuel through the vacuum line that goes to the RH side of the manifold. That would severly flood the engine on that side (5 and 7 especially). Checking that vacuum line will only take a minute.
Old Oct 18, 2003 | 12:09 AM
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Originally posted by shoebox
That's a good suggestion. The pop you heard could have been the diaphragm in the regulator blowing (since it is right close to the firewall). That would cause the engine to suck fuel through the vacuum line that goes to the RH side of the manifold. That would severly flood the engine on that side (5 and 7 especially). Checking that vacuum line will only take a minute.
Where is that vacuum line
Old Oct 18, 2003 | 12:12 AM
  #20  
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Originally posted by BlkZ28M6
check your fuel pressure. could be a faulty fuel pressure regulator (blew out the valve). smell your oil make sure it doesn't smell like gas. if it does change your oil before you scuff up your cylinder walls. take all the plugs out overnite to let the gas evaporate and clean the plugs as best you can. put everything back together and see if it starts.
Good Luck!
This makes more since than anything else. Should i replace the fuel pressure regulater. If so, where is it. This makes much since, because it flooded the engine so much.
Old Oct 18, 2003 | 10:59 AM
  #21  
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day 2,

i changed nothing, but now it wont even crank, it just makes a ticking sound. Starter fried?
Old Oct 18, 2003 | 12:22 PM
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well, i took out 6 of the plugs(2 i cant get to) and it smelt and had gas on the plugs. Checked the oil, smelt like gas also. So, im guessing the fuel pressure thing was right. Now, if it did blow, does it need replacing, also, where is it at? I changed the oil. It still wont crank. More answers please
Old Oct 18, 2003 | 01:18 PM
  #23  
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ttt, plz, help, im so sad, i dont know what to do. I wish, when the engine ran rich it would have blown and taken me with it I dont know what to do. I dont have much money. IM depressed.......
Old Oct 18, 2003 | 02:34 PM
  #24  
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Check Shoeboxs tech page.Its on the back of the intake,drivers side.
Old Oct 18, 2003 | 02:42 PM
  #25  
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Originally posted by jasons93z
day 2,

i changed nothing, but now it wont even crank, it just makes a ticking sound. Starter fried?
I don't think you started is fried, I think your battery is dead
Old Oct 18, 2003 | 03:08 PM
  #26  
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Yea man, its not the starter. I bet its your battery, jump the thing. I am not worried about the issue your having with the white smoke, like it was suggested its prob the fuel presure regulator. But what I am curious about is what the bang was under your car, can you describe it, and where exactly it felt like? Was it on the highway?
Old Oct 18, 2003 | 05:14 PM
  #27  
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Jack it up and take a look at your cats and all else under the car. Look for the strange thump you heard. Somehow I have a cat feeling.
Old Oct 18, 2003 | 08:21 PM
  #28  
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Originally posted by 96 WS6
Jack it up and take a look at your cats and all else under the car. Look for the strange thump you heard. Somehow I have a cat feeling.
I have no cat . I have a feeling that the loud noise was an explosion in the exhaust because it was running VERY rich. Like i said, when i pulled the plugs, gas came out. So far, i have pulled all but one plug. I cant, for the life of me get the plug on the passenger side, the 1st one. I pulled the altenator, and still cant get it . I also changed the oil, and pulled the starter to test it and its fine, so it is the battery thats the problem. Im hoping that once i put everything back together tomorrow, that it will be ok. Please, give more input. also, what else should i do before starting it the 1st time. Is the fuel pres reg still a problem? Or is it just happen every so often I think ive listed everything ive done so far, i praying like no other that it will start tomorrow, PLEASE PLEASE PLEASE GOD HELP ME.
Old Oct 18, 2003 | 08:36 PM
  #29  
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SO im guessing he was right with the fuel pres reg blowing the valve. My main question is, does it need replacing? I still had pressure in the fuel system, because when i undid the gas cap a lot of pressure was released, so the system is holding pressure. Now this vacuum line that shoebox was talking about, where is that located. If i do need to replace the regulator, does anyone have instructions? I know where its at, but not sure how to replace it.
Old Oct 18, 2003 | 09:39 PM
  #30  
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Pressure coming out when you remove the gas cap does not necessarily mean you have good pressure in the line.

Regulator
This shows the other end of the vacuum line. I can't believe that you have not pulled that line off yet and checked for gas.



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