My truck is cutting off again - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70' GMC · 04-20-2008, 05:59 PM

When Im sitting parked it will cut off or when im sitting at a stop sign or light it will usually do it. I thought of using sea foam or some of that stuff from prestone please let me know what to do.

motopatzo · 04-20-2008, 06:11 PM

We need more info to figure it out if it is fuel, ignition or mechanical related. Does it just cut out abruptly or does the engine lope or idle slow, is there any strange sounds or smells when it stalls, Does it do it cold or hot....anymore info would be good.

ChevLoRay · 04-20-2008, 06:59 PM

Yeah, need more info, soil samples, something more to go on. We can speculate out the wazoo and you'll be chasing your tail to no end. A little knowledge is dangerous. Get all you can.

70' GMC · 04-20-2008, 09:39 PM

Quote:

Originally Posted by motopatzo

We need more info to figure it out if it is fuel, ignition or mechanical related. Does it just cut out abruptly or does the engine lope or idle slow, is there any strange sounds or smells when it stalls, Does it do it cold or hot....anymore info would be good.

It does it hot and cold. When the motor is idling it will sometimes cut off for no reason. It has no strange sounds or smells when it stalls. I run 93 octane so whats the problem? When I would run 87 octane it did not want to run it would stall and would knock a little bit.

straitnate14 · 04-21-2008, 01:02 AM

does it start right back up or does it take a while? I had an ingnition module that did this, sart run for a bit die run fine for an hour, die checked it at advanced auto and replaced it

motopatzo · 04-21-2008, 02:57 AM

If it has HEI ignition that would be a good start. I had a module that would do that as well and I also had another one that the module hold-down screws were stripped and did not provide a good ground path and it would stall and not start intermittently.....that would be a good start, and one less thing to try and eliminate

JAKES 68GMC · 04-22-2008, 06:09 AM

If you make the truck louder, it won't cut out at stop signs as much or as bad.

04-20-2008, 05:59 PM	#1
70' GMC HERE.......Somewhere Join Date: Oct 2006 Location: Birmingham AL Posts: 2,488	My truck is cutting off again When Im sitting parked it will cut off or when im sitting at a stop sign or light it will usually do it. I thought of using sea foam or some of that stuff from prestone please let me know what to do. __________________ Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 with a 350 4barrel and 288 horses Classics make it possible!

04-20-2008, 06:11 PM	#2
motopatzo Registered User Join Date: Oct 2006 Location: maple ridge, b.c., canada Posts: 190	Re: My truck is cutting off again We need more info to figure it out if it is fuel, ignition or mechanical related. Does it just cut out abruptly or does the engine lope or idle slow, is there any strange sounds or smells when it stalls, Does it do it cold or hot....anymore info would be good.

04-20-2008, 06:59 PM	#3
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: My truck is cutting off again Yeah, need more info, soil samples, something more to go on. We can speculate out the wazoo and you'll be chasing your tail to no end. A little knowledge is dangerous. Get all you can. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

04-21-2008, 01:02 AM	#5
straitnate14 Registered User Join Date: Feb 2008 Location: Bartonville IL Posts: 415	Re: My truck is cutting off again does it start right back up or does it take a while? I had an ingnition module that did this, sart run for a bit die run fine for an hour, die checked it at advanced auto and replaced it __________________ ΜΟΛΩΝ ΛΑΒΕ

04-21-2008, 02:57 AM	#6
motopatzo Registered User Join Date: Oct 2006 Location: maple ridge, b.c., canada Posts: 190	Re: My truck is cutting off again If it has HEI ignition that would be a good start. I had a module that would do that as well and I also had another one that the module hold-down screws were stripped and did not provide a good ground path and it would stall and not start intermittently.....that would be a good start, and one less thing to try and eliminate

04-22-2008, 06:09 AM	#7
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: My truck is cutting off again If you make the truck louder, it won't cut out at stop signs as much or as bad. Last edited by JAKES 68GMC; 04-22-2008 at 06:09 AM.



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