'92 4.3 Hot start problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Vega · 05-19-2009, 10:34 PM

I have been having intermitment start problems, it only seems to be when it is hot, I have a new Accel distributor, checked everything I can think of the only thing elese it could be is the computer. I have a friend that has a parts '92 w/ 4.3 I am going to try his computer if it is the same. How many different computers were there for the 4.3.
Thanks for your help, Bruce

gchemist · 05-20-2009, 01:48 AM

Is it a starter problem? Is the timing set to zero? Clean the TBI really good with a cleaner. Run some seafoam through the fuel tank.

Vega · 05-20-2009, 09:15 AM

New starter, cranks over fine, noid light hooked to injectors does not light then let set for a about an hour it will start.
Timing is set right.
TBI is clean.
New fuel pump and filter, tank clean.

Vega · 05-21-2009, 10:36 AM

Well it is not the computer, it would not start this morning and I changed the computer and it still did not start. Let it set for over a half hour and it started. I am getting sick of not having a dependable truck. Any help would be greatly appreciated.
Thanks Bruce

Arad68 · 05-21-2009, 10:53 PM

It sounds like a loose or intermitant connection somewhere. If it has a firewall connection block, I'd start there.

05-19-2009, 10:34 PM	#1
Vega Registered User Join Date: Aug 2001 Location: Clarinda, Iowa USA Posts: 22	'92 4.3 Hot start problems I have been having intermitment start problems, it only seems to be when it is hot, I have a new Accel distributor, checked everything I can think of the only thing elese it could be is the computer. I have a friend that has a parts '92 w/ 4.3 I am going to try his computer if it is the same. How many different computers were there for the 4.3. Thanks for your help, Bruce

05-20-2009, 01:48 AM	#2
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: '92 4.3 Hot start problems Is it a starter problem? Is the timing set to zero? Clean the TBI really good with a cleaner. Run some seafoam through the fuel tank. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

05-20-2009, 09:15 AM	#3
Vega Registered User Join Date: Aug 2001 Location: Clarinda, Iowa USA Posts: 22	Re: '92 4.3 Hot start problems New starter, cranks over fine, noid light hooked to injectors does not light then let set for a about an hour it will start. Timing is set right. TBI is clean. New fuel pump and filter, tank clean.

05-21-2009, 10:36 AM	#4
Vega Registered User Join Date: Aug 2001 Location: Clarinda, Iowa USA Posts: 22	Re: '92 4.3 Hot start problems Well it is not the computer, it would not start this morning and I changed the computer and it still did not start. Let it set for over a half hour and it started. I am getting sick of not having a dependable truck. Any help would be greatly appreciated. Thanks Bruce

05-21-2009, 10:53 PM	#5
Arad68 Trucks N Tranzams Join Date: Dec 2002 Location: North Las Vegas, Nevada Posts: 816	Re: '92 4.3 Hot start problems It sounds like a loose or intermitant connection somewhere. If it has a firewall connection block, I'd start there. __________________ Don '68 Chevy LB 383 TH400/GV/373 posi '56 Chevy 4WD SWB '64 Chevy short stepside '79 Trans Am 455/TH2004R/12blt/4whldisc 95 Kia (Wifes car) 2002 S-10 extended cab pickup "God punishes small sins immediately" Last edited by Arad68; 05-21-2009 at 10:53 PM.

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