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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Tazman on May 17, 2015, 10:56:21 am

Title: Did not start then it did
Post by: Tazman on May 17, 2015, 10:56:21 am

My usual Sunday morning involves going to pick up the Sunday paper and coming home to read it over coffee. This morning the paper did not have a Target flyer and my wife has to have that flyer so I went to go get one. Yet the truck would not start, it turned and turned but would not start. Pulled the air cleaner off and started looking and did find a vacuum line off and reattached it and it started. So just to be sure I disconnected the same line and it kept running so I turned it of and she still started so I do not think that was the problem. So I still do not know what the issue was and if it will bother again. Any ideas?
Thanks

Title: Re: Did not start then it did
Post by: Irish_Alley on May 17, 2015, 04:22:53 pm

last time you drove it before this? could you hear the fuel pump? how long was the initial crank?

Title: Re: Did not start then it did
Post by: Tazman on May 17, 2015, 04:44:41 pm

Fuel pump sounded fine as it as since, the truck as run great since then.

Title: Re: Did not start then it did
Post by: Irish_Alley on May 17, 2015, 04:45:50 pm

could you hear the pump when it wouldnt start?

Title: Re: Did not start then it did
Post by: Tazman on May 17, 2015, 04:57:20 pm

Yes

Title: Re: Did not start then it did
Post by: Irish_Alley on May 17, 2015, 06:57:57 pm

could of been a distributor problem. problem is its electrical and the only way to eliminate things is when its acting up again

Title: Re: Did not start then it did
Post by: Tazman on May 17, 2015, 07:49:38 pm

Could it have been a vacuum issue? The line I had mentioned was the two way check valve which I just replaced a few minutes ago. Is it possible that when I tried to start it that not enough pressure was in the engine? Then when I connected the line it started and started again after disconnecting it because the pressure was built up enough for it to start.

Title: Re: Did not start then it did
Post by: Irish_Alley on May 17, 2015, 09:08:18 pm

did it try to start or did it just rotate? i wouldnt think a vacuum leak would cause a no start maybe a poor running engine and if it was big enough a non start but as far as a vacuum hose it should of started

Title: Re: Did not start then it did
Post by: Tazman on May 18, 2015, 09:37:44 pm

It rotated but would not start as it did when leaving from work today. I will find out the issue tomorrow after the shop calls and says it is ready to go.
Thanks

Title: Re: Did not start then it did
Post by: Irish_Alley on May 18, 2015, 11:50:10 pm

could be multiple things from lack of fuel to no spark. but since a shop has it now no sense in troubleshooting