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 > S10 S15 Luv Blazer

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 03-31-2017, 02:06 AM   #1
BigDan3131
Registered User
 
BigDan3131's Avatar
 
Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
Question Surging

1991 Chevy S10
4.3L TBI
TH700R4

I need to update my miles on here since the truck now has 262000 miles on it.

So recently the truck doesn't want to fire right up if I take a short drive [less than 10 minutes] and once its warm it runs fine but at 40 to 50 mph it stutters and shudders a pinch until I give it more gas. I thought it was a trans issue of it slipping but it did it off idle in park.
Is it time to replace my TBI unit? I recently replace the IAC and it ran better for a month and now this issue popped up, do the IAC's go bad or are known to fail? I could clean the one I pulled and reinstall it. Tank was cleaned and new pump and filter were installed 2 years ago with zero issues until now and I still get 20mpg hwy.

I only run 92 octane non ethanol gas.
__________________
Custom Painter/Restoration Specialist

1965 GMC 3/4 Ton LB SOLD?
1964 Chevy El Camino in full restoration
1991 Chevy S10 288K+ miles 2nd Owner SOLD

2020 RAM 1500 Warlock
BigDan3131 is offline   Reply With Quote
 

Bookmarks


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 01:48 AM.


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