Notices
GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

Engine stumbling at idle

Thread Tools
 
Search this Thread
 
Old 09-02-2007, 10:23 PM
  #11  
TECH Apprentice
 
00Silverado's Avatar
 
Join Date: Oct 2002
Location: Los Angeles and Bakersfield, CA
Posts: 306
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm planning on having my FPR changed, and probably plugs/wires...
Old 09-03-2007, 10:30 AM
  #12  
Launching!
 
TylerCustoms's Avatar
 
Join Date: Jun 2007
Location: Seacoast NH
Posts: 239
Likes: 0
Received 0 Likes on 0 Posts
Default

Search "seafoam" stuff works wonders on odd motor issues...quick cheap and EXTREMELY effective
Old 09-04-2007, 04:37 PM
  #13  
Launching!
Thread Starter
iTrader: (1)
 
mabutler's Avatar
 
Join Date: Jun 2006
Location: Jacksonville, FL
Posts: 280
Likes: 0
Received 0 Likes on 0 Posts
Default

Got the code read today = P0300 Random misfire

Any ideas on where to start or how to narrow it down?
Old 09-04-2007, 04:52 PM
  #14  
TECH Veteran
iTrader: (5)
 
BLACKND's Avatar
 
Join Date: Aug 2004
Location: Alvin,TX
Posts: 4,123
Likes: 0
Received 0 Likes on 0 Posts
Default

I would definitely check plugs and wires.
Old 09-04-2007, 08:28 PM
  #15  
Launching!
 
TylerCustoms's Avatar
 
Join Date: Jun 2007
Location: Seacoast NH
Posts: 239
Likes: 0
Received 0 Likes on 0 Posts
Default

Do the seafoam treatment, HIGHLY recommended, follow the instructions from the tips on here to do it, then run it for a day, then go get an oil change, on your way home stop and get plugs and wires, make sure the plugs are gapped precisely...and you should have no more issues!
Old 09-05-2007, 11:41 AM
  #16  
Launching!
Thread Starter
iTrader: (1)
 
mabutler's Avatar
 
Join Date: Jun 2006
Location: Jacksonville, FL
Posts: 280
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by TylerCustoms
Do the seafoam treatment, HIGHLY recommended, follow the instructions from the tips on here to do it, then run it for a day, then go get an oil change, on your way home stop and get plugs and wires, make sure the plugs are gapped precisely...and you should have no more issues!
I treat it with seafoam regularly, but why the oil treatment? I wouldn't think it has anything to do with that part of the engine.
Old 09-12-2007, 12:44 AM
  #17  
TECH Addict
iTrader: (5)
 
CashDudeHomie's Avatar
 
Join Date: Apr 2002
Posts: 2,911
Likes: 0
Received 1 Like on 1 Post
Default

I got the random misfire code once when there was a tiny hole in one of my plug wires where it was too close to the header. I hit a puddle of water and the thing went crazy. Might want to check the wires.
Old 09-12-2007, 01:53 AM
  #18  
Moderator
iTrader: (19)
 
TXsilverado's Avatar
 
Join Date: Jan 2005
Location: Humble Texas
Posts: 18,315
Received 222 Likes on 148 Posts
Default

also clean the MAF with electrical contact cleaner while your in there updating. a false maf reading at idle will make it do this.
Old 09-12-2007, 02:32 AM
  #19  
12 Second Club
iTrader: (46)
 
MGMC's Avatar
 
Join Date: Feb 2003
Location: Virginia Beach, VA
Posts: 841
Likes: 0
Received 0 Likes on 0 Posts
Default

same thing was happening to my truck...the longer i stayed at an idle the worse it got and more it bogged as i took off...it was a loose plug wire, i went ahead and replaced all the wires and it cured it.
Old 09-12-2007, 07:25 AM
  #20  
Launching!
Thread Starter
iTrader: (1)
 
mabutler's Avatar
 
Join Date: Jun 2006
Location: Jacksonville, FL
Posts: 280
Likes: 0
Received 0 Likes on 0 Posts
Default

I replaced the plugs and wires and it is doing fine now.


Quick Reply: Engine stumbling at idle



All times are GMT -5. The time now is 04:22 AM.