The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Truck won't start right up and backfires like crazy!

naystcb · 11-22-2011, 10:39 PM

Ok, so I was able to get to what I believe is the correct TDC, I was off by a couple of teeth, and was able to get it timed and running fairly well. It is set between 10-12 degrees BTDC with vacuum advance disconnected. Only problem that I am still having and have been having is that when I start the vehicle the choke is not doing it's job and I have to manually hold the accelerator down to bump up the idle until vehicle is warm and then it will stay running. I also have the curb idle set at around 1100 rpms permanently because if it goes anywhere below 1000 the vehicle will stall. Does this sound right?

11-22-2011, 10:39 PM	#16
naystcb Registered User Join Date: Nov 2011 Location: Orange, California Posts: 17	Re: Truck won't start right up and backfires like crazy! Ok, so I was able to get to what I believe is the correct TDC, I was off by a couple of teeth, and was able to get it timed and running fairly well. It is set between 10-12 degrees BTDC with vacuum advance disconnected. Only problem that I am still having and have been having is that when I start the vehicle the choke is not doing it's job and I have to manually hold the accelerator down to bump up the idle until vehicle is warm and then it will stay running. I also have the curb idle set at around 1100 rpms permanently because if it goes anywhere below 1000 the vehicle will stall. Does this sound right? __________________ I gave up my wife for my Chevy truck!