The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-02-2015, 02:43 PM   #1
parrisc19844x4_468
Registered User
 
parrisc19844x4_468's Avatar
 
Join Date: Oct 2010
Location: Town of Summit, WI
Posts: 322
Carb / Starting problems

OK, put my 1983 4x4 swb silverado(350 , 700R4) away last fall, got it out. (checked the oil, tires, water level, tranny fluid, etc.) yesterday for the first time this year. Put in the fully charged battery set the choke and no start. Pumped it a few times then no start. Took the cleaner off and gave it a shot of gas directly into the 4 barrel Quadrajet. This time it fires right up and runs fine. So far its good. I drove it for about 5 miles and decided to stop and put in some fresh gas. I was on the tank that was about 1/4, filled it up , this time it started right up. Drove about 1 miles, then it kills. As I was coasting I tried to refire it, it fired a few times but would not start. I had to get out and give it another shot of gas direclty down the hold again, it starts right up and away I went. I drove for about 50 mils and no problems. I shot it off once I got back and again it would not start until I gave it another shot.

Any ideas? I want to keep it original so not going to replace the Quadrajet, not an option. Maybe it needs to be rebuilt? Seems the fuel pump is ok? Not sure at this point.

Thanks in Advance for your ideas
__________________
2017 Silverado LTZ 6.2
1984 Scottsdale K10 - 468 700r 4x4 lwb
1978 GMC Sierra Grande K15 350 Soond to be 406 th350 4x4 swb
1968 GMC 20 305 V6 good ole wood hauler.

Good Fences make good neighbors
parrisc19844x4_468 is offline   Reply With Quote
Old 04-02-2015, 04:41 PM   #2
69heavychevy
Registered User
 
69heavychevy's Avatar
 
Join Date: Jan 2007
Location: Garland,TX
Posts: 431
Re: Carb / Starting problems

Seems like your carb might need a rebuild like you said. I had to rebuild my edelbrock twice within six months for letting it sit too long. The ethanol turns into a jello like substance after sitting a while and just causes all kinds of issues with fuel systems.
__________________
80 C10 SWB Step Side - 350 w/ vortec heads, TH350, 12-bolt 3.73
69heavychevy is offline   Reply With Quote
Old 04-02-2015, 05:18 PM   #3
Bigstevex4
Registered User
 
Bigstevex4's Avatar
 
Join Date: Oct 2014
Location: Spearfish South Dakota
Posts: 407
Re: Carb / Starting problems

The first time i woild have said most gas evaperated. put a can seafom in it run it see what happens.
__________________
83 c10 long Box Daily Driver
90 Jimmy parked
98 Road King/ 06 Road Glide
In memorium
63 impala SS/ 65 Chevy Panel
65 GMC Short Box/ 68 Camero
Bigstevex4 is offline   Reply With Quote
Old 04-02-2015, 05:21 PM   #4
Hiluxxulih
Registered User
 
Hiluxxulih's Avatar
 
Join Date: Mar 2011
Location: Coos Bay , Oregon
Posts: 272
Re: Carb / Starting problems

Sounds like an accelerator pump problem .
__________________
1985 Chevrolet Custom Deluxe
4x2 , 305 v8 , 700R4 transmission
Hiluxxulih is offline   Reply With Quote
Old 04-02-2015, 07:59 PM   #5
tucsonjwt
Registered User
 
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,188
Re: Carb / Starting problems

I would check the obvious first - remove air cleaner lid - is the choke valve stuck all the way shut?
tucsonjwt is offline   Reply With Quote
Old 04-03-2015, 02:52 PM   #6
parrisc19844x4_468
Registered User
 
parrisc19844x4_468's Avatar
 
Join Date: Oct 2010
Location: Town of Summit, WI
Posts: 322
Re: Carb / Starting problems

Quote:
Originally Posted by tucsonjwt View Post
I would check the obvious first - remove air cleaner lid - is the choke valve stuck all the way shut?
Hey thanks for that tip. I looked at my choke and the wire had came lose. Not sure if that was it or not. I will test it when it warms backup here again. only 47 today.
__________________
2017 Silverado LTZ 6.2
1984 Scottsdale K10 - 468 700r 4x4 lwb
1978 GMC Sierra Grande K15 350 Soond to be 406 th350 4x4 swb
1968 GMC 20 305 V6 good ole wood hauler.

Good Fences make good neighbors
parrisc19844x4_468 is offline   Reply With Quote
Reply

Bookmarks

Tags
carb, quadrajet


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:48 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com