engine problem on an 82 with 350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Lagg · 11-11-2006, 10:12 PM

when i drive down the road ad get to about 30-35 the engine will cut out and will even die if i dont let off the gas but i can sit in park and rev it up all the way and hold it and it runs fine any ideas on this is it as easy as a fuel pump or as difficult as a transmission? or does anyone know the exact part? is it possible that it could be something on the 700R4 trannie?

lilpup69chevy · 11-11-2006, 10:24 PM

a manual fuel pump isn't expensive or hard to put on i don't know why the transmission would cause it to die, sounds like a fuel issue maybe the filter on the carb is dirty? try cleaning or replacing it and the fuel pump, since its a carbureted engine its something simple

magnethead · 11-11-2006, 10:32 PM

check your lockup electronics and TV cable

Lagg · 11-12-2006, 01:24 AM

lilpupchevy ive changed the filter havnt done a pump yet though i know i can do it myself for like 9$ but would it be the pump if i can sit there and rev it up fine in park or neutral

magnethead what/where is the lockup electronics? as well as the tv cable ive heard that term before just not ringing a bell though

im new to chevys i got this one in a trade trying to get it running right then ima do all the restoration work im normally a ford man but im giving chevy a chance and i got a good setup drivetrain wise if i just get it working properly to impress myself with a chevy

Lagg · 11-12-2006, 01:59 AM

well i just traded a set of 6x9 speakers for a quadrajet carb ima put that on it and see what it does if it does the same thing ill just give my old carb to my cousin lol he needs one for his 86 custom anyway and also if it dont work ill post again on here

Hoods69BadBowTie · 11-12-2006, 02:09 AM

Kinda sounds like fuel pump but does not at the same time. Cause it will die and not start and run crappy at random times. But not good alot and then some bad.

bigpig72CST · 11-14-2006, 01:56 PM

I had the exact same problem with an 85 K5 I used to have. Surprisingly, it was a cracked distributor cap. It would sit and idle and even rev up fine, but driving it was the same issue you are having.

Lagg · 11-15-2006, 12:27 AM

thanks ill check it thursday when im off might buy one just to put on it i work at O'reills so i get discount anyway

Lagg · 11-17-2006, 12:30 AM

well it did need a new cap and rotor but that wasnt the problem it still does it anyone else got any suggestions? im bout to pull the carb off and put this other one on its only doing it when the secondary butterfly opens so it could be the secondary jets in the carb?

73stepside · 11-17-2006, 05:41 AM

sounds like the problem is the carb isn't jetted properly on the secondary side or it has all kinds of gunk clogging the passages on the inside

Lagg · 11-17-2006, 12:22 PM

thats what ima do next is change the carb ive already got one to put on it so no biggie now ill change it in the next few days then ill get back to yall on the progress on whether it works or not

piecesparts · 11-17-2006, 12:46 PM

What does this beast have for a carb? Is the carb a "Qaudrajet" built by Rochester of Carter. If it is the Rochester Quadrajet, then you are OK, but if the Quad is a "Carter" built unit, then there is a design problem inside where the secondary needles feed through the lower bowl. The Rochester unit has brass inserts around these needles and the metered flow is maintained without problem. The Carter design does not have the brass inserts and the bowl erodes away around the needles and the carb will tend flood and bog out the motor when you accelerate. This cannot be fixed, short of a toss into the junk pile and a Rochester body used in it's place.

magnethead · 11-17-2006, 05:43 PM

Quote:

Originally Posted by piecesparts

What does this beast have for a carb? Is the carb a "Qaudrajet" built by Rochester of Carter. If it is the Rochester Quadrajet, then you are OK, but if the Quad is a "Carter" built unit, then there is a design problem inside where the secondary needles feed through the lower bowl. The Rochester unit has brass inserts around these needles and the metered flow is maintained without problem. The Carter design does not have the brass inserts and the bowl erodes away around the needles and the carb will tend flood and bog out the motor when you accelerate. This cannot be fixed, short of a toss into the junk pile and a Rochester body used in it's place.

*scribbles in notepad*

11-11-2006, 10:12 PM	#1
Lagg Registered User Join Date: Sep 2006 Location: TN Posts: 8	engine problem on an 82 with 350 when i drive down the road ad get to about 30-35 the engine will cut out and will even die if i dont let off the gas but i can sit in park and rev it up all the way and hold it and it runs fine any ideas on this is it as easy as a fuel pump or as difficult as a transmission? or does anyone know the exact part? is it possible that it could be something on the 700R4 trannie?

11-11-2006, 10:24 PM	#2
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: engine problem on an 82 with 350 a manual fuel pump isn't expensive or hard to put on i don't know why the transmission would cause it to die, sounds like a fuel issue maybe the filter on the carb is dirty? try cleaning or replacing it and the fuel pump, since its a carbureted engine its something simple __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)

11-11-2006, 10:32 PM	#3
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	Re: engine problem on an 82 with 350 check your lockup electronics and TV cable

11-12-2006, 01:24 AM	#4
Lagg Registered User Join Date: Sep 2006 Location: TN Posts: 8	Re: engine problem on an 82 with 350 lilpupchevy ive changed the filter havnt done a pump yet though i know i can do it myself for like 9$ but would it be the pump if i can sit there and rev it up fine in park or neutral magnethead what/where is the lockup electronics? as well as the tv cable ive heard that term before just not ringing a bell though im new to chevys i got this one in a trade trying to get it running right then ima do all the restoration work im normally a ford man but im giving chevy a chance and i got a good setup drivetrain wise if i just get it working properly to impress myself with a chevy

11-12-2006, 01:59 AM	#5
Lagg Registered User Join Date: Sep 2006 Location: TN Posts: 8	Re: engine problem on an 82 with 350 well i just traded a set of 6x9 speakers for a quadrajet carb ima put that on it and see what it does if it does the same thing ill just give my old carb to my cousin lol he needs one for his 86 custom anyway and also if it dont work ill post again on here

11-12-2006, 02:09 AM	#6
Hoods69BadBowTie Chevys Kick A$$ Join Date: Jan 2005 Location: Zootown, MT Posts: 12,699	Re: engine problem on an 82 with 350 Kinda sounds like fuel pump but does not at the same time. Cause it will die and not start and run crappy at random times. But not good alot and then some bad. __________________ HOODS is what I answer too -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER I would rather push a Chevy then drive a ford!!

11-14-2006, 01:56 PM	#7
bigpig72CST Registered User Join Date: Oct 2006 Location: Des Moines Posts: 55	Re: engine problem on an 82 with 350 I had the exact same problem with an 85 K5 I used to have. Surprisingly, it was a cracked distributor cap. It would sit and idle and even rev up fine, but driving it was the same issue you are having.

11-15-2006, 12:27 AM	#8
Lagg Registered User Join Date: Sep 2006 Location: TN Posts: 8	Re: engine problem on an 82 with 350 thanks ill check it thursday when im off might buy one just to put on it i work at O'reills so i get discount anyway

11-17-2006, 12:30 AM	#9
Lagg Registered User Join Date: Sep 2006 Location: TN Posts: 8	Re: engine problem on an 82 with 350 well it did need a new cap and rotor but that wasnt the problem it still does it anyone else got any suggestions? im bout to pull the carb off and put this other one on its only doing it when the secondary butterfly opens so it could be the secondary jets in the carb?

11-17-2006, 05:41 AM	#10
73stepside Registered User Join Date: Feb 2002 Location: Moore OK 73160 Posts: 974	Re: engine problem on an 82 with 350 sounds like the problem is the carb isn't jetted properly on the secondary side or it has all kinds of gunk clogging the passages on the inside __________________ 04 GMC Sierra RCSS 70 CST LWB 04 HD Sportster 1200 Custom

11-17-2006, 12:22 PM	#11
Lagg Registered User Join Date: Sep 2006 Location: TN Posts: 8	Re: engine problem on an 82 with 350 thats what ima do next is change the carb ive already got one to put on it so no biggie now ill change it in the next few days then ill get back to yall on the progress on whether it works or not

11-17-2006, 12:46 PM	#12
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: engine problem on an 82 with 350 What does this beast have for a carb? Is the carb a "Qaudrajet" built by Rochester of Carter. If it is the Rochester Quadrajet, then you are OK, but if the Quad is a "Carter" built unit, then there is a design problem inside where the secondary needles feed through the lower bowl. The Rochester unit has brass inserts around these needles and the metered flow is maintained without problem. The Carter design does not have the brass inserts and the bowl erodes away around the needles and the carb will tend flood and bog out the motor when you accelerate. This cannot be fixed, short of a toss into the junk pile and a Rochester body used in it's place.



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