Chevy Silverado/ GMC Sierra Forum Discuss the Chevrolet Silverado and GMC Sierra here.

rough starting...

Thread Tools
 
Search this Thread
 
  #11  
Old 11-11-2007, 08:53 PM
Join Date: Jul 2007
Location:
Posts: 621
Default RE: rough starting...

I don't know....It was justa question. At first I thought you were both running tuners but charger doesn't list one. I thought the computer would be slower to pick up the new mix but the problem persists over several weeks. Argon's reply sounds like a good, simple place to start.
 
  #12  
Old 11-11-2007, 08:56 PM
Join Date: Sep 2007
Location:
Posts: 287
Default RE: rough starting...

I'll have to check that too, once I find out where it is too lol! Not sure about charger but my gauges always stay in the norm. I also know my coolant light keeps comming on, yet the coolant is full.
 
  #13  
Old 11-12-2007, 05:15 AM
Argon's Avatar
Senior Member
Join Date: Feb 2007
Location:
Posts: 2,167
Default RE: rough starting...

on the left side of the engine josh....mounted on the fuel rail by the injectors...it looks like a small metal pot...it has a vacuum line going to it.....if its leaking ,it will drip gas inyto that line,hence flooding your engine when cold
 
  #14  
Old 11-12-2007, 07:33 AM
72charger's Avatar
TruckForum Addict
Thread Starter
Join Date: Jun 2007
Posts: 1,725
Default RE: rough starting...

Ok I'll definately check that out asap! Thanks Steve!
 
  #15  
Old 11-12-2007, 08:48 AM
jcbst12's Avatar
Senior Member
Join Date: Jul 2007
Location:
Posts: 1,855
Default RE: rough starting...

I have noticed my truck statrs and runs much better while warming up on cold mornings without the Hypertech on her.
 
  #16  
Old 11-12-2007, 11:11 AM
Join Date: Jul 2007
Location:
Posts: 621
Default RE: rough starting...

I haven't noticed any idle problems with the hypertech. My truck sound like a deisel in the morning. I contribute that to the CIA and aluminum heads. The '01 was louder and had no mods, but, it had an aluminum block.
 
  #17  
Old 11-12-2007, 12:48 PM
jcbst12's Avatar
Senior Member
Join Date: Jul 2007
Location:
Posts: 1,855
Default RE: rough starting...

Its been getting int the 30 degree range at night maybe thats why. Either way (with or without the hypertech) my trucks valves tap in the morning for a few minutes and then stops when it warms up. But without the hypertech on a cold morning, the engine starts quicker and runs smoother. I think it goes back to what the tech support guy told me about mods and using the programmer. I sunno, just a thought.
 
  #18  
Old 11-12-2007, 03:58 PM
chevy112488's Avatar
Senior Member
Join Date: Feb 2007
Location: Jackson, TN
Posts: 985
Default RE: rough starting...

my truck starts hard and idles rough about once a month, usually on colder nights... maybe its a 4.8 thing?
 
  #19  
Old 11-12-2007, 06:54 PM
72charger's Avatar
TruckForum Addict
Thread Starter
Join Date: Jun 2007
Posts: 1,725
Default RE: rough starting...

Well mine does it whether it's hot or cold. I go to church out of town and both the last 2 sundays when I've driven it 30 minutes, stayed in service about 2 1/2 hours, then went to crank it, it stumbled and almost stalled out. Those 2 times have been the worst but it has done that like 10 times now... just not as bad. I am gonna check that thing Argon said first thing in the morning and see what I find there. I was gonna check it this morning and realized I didn't have enough time. Should know something in the morning though.
 
  #20  
Old 11-13-2007, 08:34 AM
72charger's Avatar
TruckForum Addict
Thread Starter
Join Date: Jun 2007
Posts: 1,725
Default RE: rough starting...

Steve I checked the fuel regulator(little goldish diaphram thing on the center of the driver side fuel rail right?) I pulled the plastic vacuum line off and it was dry. Course I haven't driven it in a day or so cause I've been buzzing around in the Supra. I'll drive it to workand then see if it has fuel in the line after I turn it off. If that were the problem I don't suppose you might know off hand how much they run at the dealership.

Thanks!
 


Quick Reply: rough starting...



All times are GMT -5. The time now is 04:58 AM.