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Discussion Starter #1
HI.. EVERYONE.. I'M DONE WITH ENGINE SWAP.. But now I can't get it to start.. engine turns, but no firing.. both heads resufaced, and some valves replaced.. when I try to start, turns, and some backfiring is there..I think the distributor timing is o.k.. at the top, ready for firing..I do get blue spark.. fuel pump pumping.. I did even put some starting fluid, doesn't help..don't know where to go from here..;; can anyone with experience and knowledge help me..where to check, and where to look into ..??it iis 97 burb, 5.7 vortec..same engine, please help..:grrrrrr:
 

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Are you sure the distributor is not 180 degrees off? I have done this more times than I can count. Pull the #1 spark plug and put your finger over the hole and turn the engine until you feel air pushing your finger out and then stop at top dead center. Then make sure the rotor is pointing at #1 and not #6.
 

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Are you sure the distributor is not 180 degrees off? I have done this more times than I can count. Pull the #1 spark plug and put your finger over the hole and turn the engine until you feel air pushing your finger out and then stop at top dead center. Then make sure the rotor is pointing at #1 and not #6.
Man have I done that a few times. lol

Might also check the firing order one more time. I've messed that one up too. Although, it was usually accompanied by a twelve pack or more. lol
 

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Discussion Starter #4
allright..!! THANKS FOR YOUR INPUTS.. don't know about a twelve packs of beer.. six pack will do...lol.. more suggestions are welcome.. if there are some of the sensors that I would have to check for the starting problem..what can it be..??? and how to check them..?? etc..?? well.. any help will be helpful at this time...I did try my best to put the distributor rod in place.. but that is one of the questionable area as well.. any tricks..?? etc.. help..!!!
 

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Backfiring is a sure sign of a timing issue. Check the distributor installation.
Some great info at: classiccarauto.com

Check out the video at:
[media]http://www.youtube.com/watch?v=OIM6KaGMTJA[/media]
 

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Lining up the distributor and drive rod

Another great video on how to line up the GM distributor and the oil pump drive rod.

[media]http://www.youtube.com/watch?v=YdIGZ-tVuZA&feature=related[/media]
 

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Discussion Starter #7
WOW...!! THAT REALLY HELPS..I'll try to reseat the distributor rod.. again.AND ..is there any web sites to help me with vaccum hose diagrams..?? this project took me over a month, and tapes fell off, and vaccum lines are in question as well..of course i did try my best to get them back as best of my knowledge, but,is in question as well..THANKS A LOT FOR THE HELP.. IT'S REALLY HELPFUL.I'LL POST MORE HELP REQUESTS AS I MOVE ALONG..THANKS... JC..
 

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There should be a sticker under the hood somewhere, but this should get you pretty close.

 

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Discussion Starter #9
Great...!!! that helps a lot... how about rest of the vaccum lines..?? on the passanger side of the for the rest of the vaccum lines..?? I guess it's for accessoriec..?? well.. I'm not a real mechanic, and these vaccum lines confuse me... I might have them going into other holes.. etc.. help will be appreciated.. even a picture of the subs itself will be a big help, if someone has one that is similar to mine.... great.. thanks for all your inputs..jc..
 

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After I get home, I'll pull the air intake off and take some pictures of my engine for you. It should be pretty close.
 

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Discussion Starter #11
allright..!! Gary.. that would be a big help. I know it would be a hassle... if you can, can you take a pictures with top air flow sensors and things off..?? you know it is under the plastic tubes..etc... by the way.. after I try to crank the engine, there is a whizzing sound .. from the back of the sub, sounds like it's coming from the fuel tank..the fuel pump..???? that goes on for about a minute or so.and that does not seem right.it's whizzing for too long...this could be the vaccum lines not connectted right..??. I don't remember it doing that.. when it was working properly.. is this something that would relate to my starting problem...???? anyone aware of this ..?? thanks in advance...
 

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Here's a few pics of my engine. Sorry it's all dirty, but I haven't washed it in a while. These are not the greatest shots, but maybe they will help you. If not let me know exactly which lines you are confused about and we can go from there.

As far as the fuel pump running to long, your relay may be malfuntioning and keeping the pump on too long after you shut it off, it should only run a few seconds.







 

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Discussion Starter #13
WOW..!!! THANKS.. GARY... THAT WAS A GREAT HELP...I had wring vaccum line going into the fuel pressure regulator.... that must have been a main mess up on my side... that may be the reason for the fuel pump going long... etc... I'll change that... ANOTHER BIG ISSUE; the one long and thin plastic vaccum line that crosses the engine... and goes to the passanger side of the firewall.....picture does explain alot... mine broke in four pieces, and can't make out the right hole... or even the right area....
 

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Discussion Starter #14 (Edited)
And.. Gary... I hope I'm not bothering you too much... on the passanger side.. where the line come from the main canister.. there are two other vaccum lines that goes to that piece,.I think that is the canister solenoid valve... I wonder where those two lines gets connected to.... any possiblity to check that one for ,me....????./thanks in advance...jc..more pictures can be helpful... j.c...
 

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And.. Gary... I hope I'm not bothering you too much... on the passanger side.. where the line come from the main canister.. there is another line, behind the connecting lines..I think that is the canister solenoid valve... I wonder where that one gets connected to.... any possiblity to check that one for ,me....????./thanks in advance...jc..more pictures can be helpful... j.c...
Not exactly sure which one you are talking about here, can you post a picture?

Here's a picture of the small line where it goes into the firewall by the a/c dryer



 

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Discussion Starter #16
YES... that is the one I was talking about... for the thin plastic one...crossing the engine.. other lines in question is.. on the second picture of the previous set of 4 pictures.. see the main big line going into the solenoid valve.... there is two more lines .. so that valve is taking total of three lines... I just can't make out where those supposed to go.. thanks... man.. that helps... jc..
 

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There must have been a change from 97-99 because mine only has the big line going into it with an electrical connection on the top of it. Do you have a sticker on the fan shroud that might have a diagram to give you a clue as to what else should be there?
 

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Discussion Starter #18 (Edited)
Hey.. gary.. how about the vaccum line that goes right underneath that one.... where does it go to...??? mine is just off.. don't know where it goes to... Can you tell me or send me a picture, if possible, but I know certain areas can't get pictures..and no... there is no stickers any where.. can't find the right connections...I even tried the owner's manual, nothing.. but YOU HELPED ME GREAT DEAL ALREADY..... I guess after having the main vaccum lines.. the diagram that you posted.. It should fire... ??? right..?? It might run rough..?? am I missing something..??? Man... I've got a lot to check into..any suggestions...?? what do you think..??jc
 

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Sorry, I didn't realize you had amended your post. The hose under the one pictured goes to a pod about a foot or so in front of where the picture is.
 

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Gary, You Rock!:great:
 
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