weird starting issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1tonchevy · 03-30-2012, 06:53 PM

I'm not sure how to even explain this issue as it's very weird.

most time my truck starts amazing for an old carbarated truck (even on cold days and not having the choked hooked up)

but some times it has a hard time starting and if it does start it spits and sputters and some times quit the only "cure" for it is to rev it till it "clears up" and then its fine....it's very weird and I would like to get it fixed so ppl don't stare at me when I start it up and have to rev it to get it to run right lol.

Dalaigh · 03-30-2012, 07:02 PM

Quote:

Originally Posted by 1tonchevy

I'm not sure how to even explain this issue as it's very weird.

most time my truck starts amazing for an old carbarated truck (even on cold days and not having the choked hooked up)

but some times it has a hard time starting and if it does start it spits and sputters and some times quit the only "cure" for it is to rev it till it "clears up" and then its fine....it's very weird and I would like to get it fixed so ppl don't stare at me when I start it up and have to rev it to get it to run right lol.

Does it only do it when the block is cold or hot, or does it do it anytime?

1tonchevy · 03-30-2012, 07:04 PM

any time when it feels like it of course. like some times it when its sat over night it will start up like it was just run the next time it runs like a bag of SH*T. same with when its warmed up.

**old Rusty C10** · 03-30-2012, 07:21 PM

thats a choke problem

1tonchevy · 03-30-2012, 07:24 PM

Quote:

Originally Posted by old Rusty C10

thats a choke problem

:S the sounds of that scares me

Dalaigh · 03-30-2012, 07:27 PM

Why is your choke not hooked up?

1tonchevy · 03-30-2012, 09:20 PM

Quote:

Originally Posted by Dalaigh

Why is your choke not hooked up?

you really wana know? because it was wired to my gas gauge and I can't find the one its actually suppose to hook too hahaha

Dalaigh · 03-30-2012, 09:29 PM

Oh, have you thought about putting a manual choke on?

Is your trucks choke controlled by power or hot air?

1tonchevy · 03-30-2012, 09:35 PM

Quote:

Originally Posted by Dalaigh

Oh, have you thought about putting a manual choke on?

Is your trucks choke controlled by power or hot air?

power i believe and yes i have considered it how hard is it to do?

Dalaigh · 03-30-2012, 10:23 PM

I'm not a 100% sure but I think the easiest way is to find a manual choke carb, then run a choke cable into the cab. Though I think you can get a kit to switch you electric choke to manual.

86c20 · 03-31-2012, 01:20 AM

what year is the truck? as if it has the egr it may be open at the wrong time (sticking) or may be plumb wrong vac at cold not hot off of the thrmo swicth. just my though as that is what mine did and i too have the choke wired open starts fine and will run fine after a few seconds on a high idle.

1tonchevy · 03-31-2012, 10:30 AM

Quote:

Originally Posted by 86c20

what year is the truck? as if it has the egr it may be open at the wrong time (sticking) or may be plumb wrong vac at cold not hot off of the thrmo swicth. just my though as that is what mine did and i too have the choke wired open starts fine and will run fine after a few seconds on a high idle.

84 1ton no EGR

86c20 · 03-31-2012, 10:41 AM

does it have the ing box in the cab? it would be behind the glove box if it did. akso what cab do you have? thinking a stiking float??

1tonchevy · 03-31-2012, 10:50 AM

Quote:

Originally Posted by 86c20

does it have the ing box in the cab? it would be behind the glove box if it did. akso what cab do you have? thinking a stiking float??

Nit sure but I dont remember seeing one when I re did the harness. my cab is an 87 3/4 crew cab

jhngardner367 · 04-07-2012, 09:07 PM

Do you have the Rochester q-jet,that has the electric metering solenoid on top? If so,you'll want to replace the carb with an earlier one. When the solenoid screws up,it can cause the problems you're having,or worse! A new solenoid(if you can find one),is expensive and difficult to tune in.Mine went bad,and I used 3/8 tank of fuel to get 2 miles home!Had to change the plugs,carb,gasket,oil,and filter!

03-30-2012, 06:53 PM	#1
1tonchevy C35 Crew Dually Join Date: Nov 2008 Location: Belleville Ontario Posts: 1,116	weird starting issue I'm not sure how to even explain this issue as it's very weird. most time my truck starts amazing for an old carbarated truck (even on cold days and not having the choked hooked up) but some times it has a hard time starting and if it does start it spits and sputters and some times quit the only "cure" for it is to rev it till it "clears up" and then its fine....it's very weird and I would like to get it fixed so ppl don't stare at me when I start it up and have to rev it to get it to run right lol. __________________ If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892

03-30-2012, 07:04 PM	#3
1tonchevy C35 Crew Dually Join Date: Nov 2008 Location: Belleville Ontario Posts: 1,116	Re: weird starting issue any time when it feels like it of course. like some times it when its sat over night it will start up like it was just run the next time it runs like a bag of SH*T. same with when its warmed up. __________________ If it aint square, I don't care. 84 C35 CC Dually Project log... http://67-72chevytrucks.com/vboard/s...d.php?t=414892

03-30-2012, 07:21 PM	#4
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,277	Re: weird starting issue thats a choke problem __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

03-30-2012, 07:27 PM	#6
Dalaigh Canadian Trucker Join Date: Nov 2010 Location: Sarnia, ont canada Posts: 648	Re: weird starting issue Why is your choke not hooked up? __________________ 2020 Silverado Trail Boss - 6.2/10spd

03-30-2012, 09:29 PM	#8
Dalaigh Canadian Trucker Join Date: Nov 2010 Location: Sarnia, ont canada Posts: 648	Re: weird starting issue Oh, have you thought about putting a manual choke on? Is your trucks choke controlled by power or hot air? __________________ 2020 Silverado Trail Boss - 6.2/10spd

03-30-2012, 10:23 PM	#10
Dalaigh Canadian Trucker Join Date: Nov 2010 Location: Sarnia, ont canada Posts: 648	Re: weird starting issue I'm not a 100% sure but I think the easiest way is to find a manual choke carb, then run a choke cable into the cab. Though I think you can get a kit to switch you electric choke to manual. __________________ 2020 Silverado Trail Boss - 6.2/10spd

03-31-2012, 01:20 AM	#11
86c20 Registered User Join Date: Mar 2012 Location: edgartown mass Posts: 852	Re: weird starting issue what year is the truck? as if it has the egr it may be open at the wrong time (sticking) or may be plumb wrong vac at cold not hot off of the thrmo swicth. just my though as that is what mine did and i too have the choke wired open starts fine and will run fine after a few seconds on a high idle.

03-31-2012, 10:41 AM	#13
86c20 Registered User Join Date: Mar 2012 Location: edgartown mass Posts: 852	Re: weird starting issue does it have the ing box in the cab? it would be behind the glove box if it did. akso what cab do you have? thinking a stiking float??

04-07-2012, 09:07 PM	#15
jhngardner367 Registered User Join Date: Feb 2012 Location: Austin, Arkansas Posts: 248	Re: weird starting issue Do you have the Rochester q-jet,that has the electric metering solenoid on top? If so,you'll want to replace the carb with an earlier one. When the solenoid screws up,it can cause the problems you're having,or worse! A new solenoid(if you can find one),is expensive and difficult to tune in.Mine went bad,and I used 3/8 tank of fuel to get 2 miles home!Had to change the plugs,carb,gasket,oil,and filter! __________________ Always expect the unexpected,....but don't expect the unexpected to be the unexpected you expect ! I'm busier than a one-legged cat,in a sandbox! Veteran..and proud ! I can't fix what ain't broke....you want I should break it?



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