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 09-28-2007, 11:56 PM   #1
Rc 415
Flat Black, & Chrome!
 
Rc 415's Avatar
 
Join Date: Jan 2007
Location: San Francisco
Posts: 852
Almost stalls

Hey I would like your opinion on this, a lot of the time when I push the gas pedal too quick my truck shudders and almost stalls, do you think it is because I am running too rich?
__________________
1983 Chevy C10 Stepside Sold
http://s69.photobucket.com/albums/i76/rc_415/
Rc 415 is offline   Reply With Quote
Old 09-29-2007, 12:03 AM   #2
f.monroe
Senior Member
 
f.monroe's Avatar
 
Join Date: May 2004
Location: Caldwell,Tx.
Posts: 3,648
Re: Almost stalls

Sounds like a bad accelerator pump . If you gradually accelerate , the carb has time to react and transfer from the idle circuit to the off idle passages . If you accelerate quickly , it needs the shot of fuel from the accelerator pump to keep it from leaning out . Frank
__________________
Born and proudly residing in a Red State !
f.monroe is offline   Reply With Quote
Old 09-29-2007, 01:55 AM   #3
jermasaurus
Registered User
 
jermasaurus's Avatar
 
Join Date: Dec 2004
Location: New Lenox, IL
Posts: 442
Re: Almost stalls

Why do you have these problems with a sweet lookin truck like that? (Assuming the one in your avatar is yours)

What F.Monroe said is right. Also a vacum leak can cause that issue. Carb to intake gasket perhaps?
I bought a cheap gasket at autozone and it just didn't seal.

Spray that intake down. If you dont find any leaks, then I would look into adjustments or a rebuild of the carb depending on it's age,
__________________
79 Jimmy slammed AKA James Down
jermasaurus is offline   Reply With Quote
Old 09-29-2007, 11:41 AM   #4
Rc 415
Flat Black, & Chrome!
 
Rc 415's Avatar
 
Join Date: Jan 2007
Location: San Francisco
Posts: 852
Re: Almost stalls

Where can I find an accelerator pump? I've looked at napa and autozone with no luck..
Quote:
Originally Posted by jermasaurus View Post
Why do you have these problems with a sweet lookin truck like that? (Assuming the one in your avatar is yours)

What F.Monroe said is right. Also a vacum leak can cause that issue. Carb to intake gasket perhaps?
I bought a cheap gasket at autozone and it just didn't seal.

Spray that intake down. If you dont find any leaks, then I would look into adjustments or a rebuild of the carb depending on it's age,
Ya thats my truck and I dont know why its doing this to me, just being a pain I guess. I have sprayed the carb down before and did not find any leaks, but I will try again.
__________________
1983 Chevy C10 Stepside Sold
http://s69.photobucket.com/albums/i76/rc_415/
Rc 415 is offline   Reply With Quote
Old 09-29-2007, 09:04 PM   #5
PhilaTruck
Right on the line, baby!
 
PhilaTruck's Avatar
 
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
Re: Almost stalls

You can try taking it out and flex the rubber edges up to recondition them. If that works, you know what the problem is. (Doug Roe's tip from his Roch carb bible.) Accel pumps are in every rebuild kit- $20-$50.

I don't know why any shop wouldn't carry or be able to order one. I go to my local non-affiliated (Penn Auto Parts) and they have it in 2 hours.
__________________
83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly

Click and scroll down for site vendors!

Subscribe here!
PhilaTruck is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 01:03 AM.


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