Go Back   Chevrolet Forum - Chevy Enthusiasts Forums > General Discussion Forums > General Tech
Sign in using an external account
Register Forgot Password?
Search

General Tech Good at troubleshooting? Have a non-specific issue? Discuss general tech topics here. IF YOUR QUESTION IS SPECIFIC TO A CERTAIN MODEL, IT DOES NOT GO IN THIS SECTION.

Reply
 
 
 
 
LinkBack Thread Tools
  #1  
Old 11-09-2013, 07:07 PM
CF Beginner
 
Join Date: Nov 2013
Location: Leicester NY
Posts: 3
Mater Towing & Recovery
Question backfiring through the intake

hi i have a 94 chevy Astro van awd 4.3 v6 and its backfiring through the intake only when you start going up hills is the only time is does it. I changed the spark plugs, wires, cap,rotor, and coil. check engine light is not on. any suggestions
Register today for free or log-in if already registered to remove this ad!
Reply With Quote
  #2  
Old 11-10-2013, 12:19 PM
CF Junior Member
 
Join Date: Nov 2013
Posts: 84
Default

Only thing I can think is that the injectors are leaking in the intake manifold. Or timing is way off.
Reply With Quote
  #3  
Old 11-11-2013, 07:08 PM
CF Beginner
 
Join Date: Nov 2013
Location: Leicester NY
Posts: 3
Mater Towing & Recovery
Default backfiring through the intake

Thanks. I will check it. what would also cause the Exhaust to get cheery red with no cat or muffler on it. Only on the passenger side. 94 chevy Astro van awd 4.3 v6

Last edited by tommyboy8072002; 11-11-2013 at 07:26 PM.
Reply With Quote
  #4  
Old 11-11-2013, 09:50 PM
CF Junior Member
 
Join Date: Nov 2013
Posts: 84
Default

Over fueling I'd say.
Reply With Quote
  #5  
Old 11-12-2013, 07:13 AM
CF Beginner
 
Join Date: Nov 2013
Location: Leicester NY
Posts: 3
Mater Towing & Recovery
Default

k. Thanks.
Reply With Quote
  #6  
Old 01-06-2014, 01:01 AM
CF Junior Member
 
Join Date: Sep 2013
Posts: 31
Default backfiring

HI,There is a TSB about the ignition module that will cause backfiring we
replaced it on my sons 94 s10 and that problem went away,now we are trying to bucking from i believe fuel starvation,but there is not a schrader valve on this year truck to check fuel pressure with a gauge.
Reply With Quote
Old 01-06-2014, 01:01 AM
 
 
 
Reply


Thread Tools

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Join Chevroletforum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 11:07 AM.

Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.

Emails Backup