Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Car hesitating...

Thread Tools
 
Search this Thread
 
Old 06-11-2011, 12:44 PM
  #1  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default Car hesitating...

ok, got the car running and driving... thing is now it seems like when I start to get on the gas, like any, not pedal slamming, it kinda hesitates before going, almost like its going to die out, then catches itself.... any ideas ?
Old 06-11-2011, 01:13 PM
  #2  
TECH Resident
iTrader: (4)
 
i r teh noobz's Avatar
 
Join Date: Feb 2009
Location: Ohio
Posts: 784
Likes: 0
Received 0 Likes on 0 Posts
Default

Check the TPS for a dead spot with a meter.
Old 06-12-2011, 01:22 PM
  #3  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by i r teh noobz
Check the TPS for a dead spot with a meter.
it checks out good.....
Old 06-12-2011, 04:08 PM
  #4  
Staging Lane
 
ModMuscle's Avatar
 
Join Date: Apr 2007
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
Default

what kind of fuel pressure are you getting? What kind of fuel supply system do you have?
Old 06-12-2011, 04:42 PM
  #5  
On The Tree
 
HAte's Avatar
 
Join Date: Dec 2010
Posts: 111
Received 1 Like on 1 Post

Default

sell it to me

if your talking about the pewter trans am that is
Old 06-12-2011, 04:49 PM
  #6  
TECH Regular
iTrader: (8)
 
MillerTime85's Avatar
 
Join Date: Oct 2009
Location: Florida
Posts: 414
Likes: 0
Received 0 Likes on 0 Posts
Default

I would say the TPS but if it checks out ok,pull a plug and see what it looks like.
Old 06-12-2011, 07:10 PM
  #7  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default

No not the pewter one that's pending sale too, even tried a new tps, still same thing. Also it has kind of developed a pop in the exhaust like a miss but no mil light on....
Old 06-12-2011, 07:51 PM
  #8  
TECH Regular
iTrader: (8)
 
MillerTime85's Avatar
 
Join Date: Oct 2009
Location: Florida
Posts: 414
Likes: 0
Received 0 Likes on 0 Posts
Default

Check Engine Light?
Old 06-12-2011, 07:58 PM
  #9  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default

It's off...
Old 06-12-2011, 08:14 PM
  #10  
TECH Regular
iTrader: (8)
 
MillerTime85's Avatar
 
Join Date: Oct 2009
Location: Florida
Posts: 414
Likes: 0
Received 0 Likes on 0 Posts
Default

Your first post says "got the car running and driving".......... Had it been sitting long? What was wrong with it before?
Old 06-12-2011, 08:47 PM
  #11  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default

It was a swap project...... I've been able to have it running, but never driving.....
Old 06-12-2011, 10:18 PM
  #12  
TECH Regular
iTrader: (8)
 
MillerTime85's Avatar
 
Join Date: Oct 2009
Location: Florida
Posts: 414
Likes: 0
Received 0 Likes on 0 Posts
Default

hmmm.Thats a hard one to give advice over the internet with it being a swapped project car.Could be lots of things.Prob something small and stupid.


Ill just throw this out there......new or old fuel filter?
Old 06-12-2011, 10:28 PM
  #13  
TECH Resident
iTrader: (2)
 
deuce4935's Avatar
 
Join Date: Sep 2006
Posts: 759
Likes: 0
Received 2 Likes on 2 Posts

Default

Spark plug wires, maf sensor, o2 sensors, fuel pump psi, injectors clogged, iac valve....
Old 06-12-2011, 11:14 PM
  #14  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by deuce4935
Spark plug wires, maf sensor, o2 sensors, fuel pump psi, injectors clogged, iac valve....
new wires, maf sensor is good, 02 sensors are new, fuel pump is new and registers 58-60 psi at rails at all times, filter is new vette reg/filt combo, iac valve I wouldnt think, but I can check it, Ill see if I cant get a video or something of it...
Old 06-13-2011, 02:38 PM
  #15  
Launching!
Thread Starter
iTrader: (7)
 
eroc022's Avatar
 
Join Date: Dec 2006
Location: Maryland
Posts: 252
Likes: 0
Received 0 Likes on 0 Posts
Default

Seems like it only happens from a stop/idle
Old 06-13-2011, 06:57 PM
  #16  
Staging Lane
 
ModMuscle's Avatar
 
Join Date: Apr 2007
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
Default

I had a 68 Camaro with a Ram Jet 350 and it did the same thing. I'm sorry to say I never did get it figured out to my liking even after two trips for a dyno tune by Arizona Speed & Marine. It always stuttered right off idle. It was a brand new crate engine. Checked everything and ASM did as well. I hated that engine. I wish you infinitely more luck getting your straightened out. Sorry I'm not much help.



Quick Reply: Car hesitating...



All times are GMT -5. The time now is 10:03 PM.