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02 Silverado - Starts, then dies, will restart.

bcavanau

Full Member
Joined
Aug 13, 2003
Messages
78
I know it's not at Av, but close enough.

I carpool with a friend from work, and he is having an issue with his 2002 Silverado (5.3l).

He can start it up, it will run from 5-30 seconds, starts to idle rough,  then stall.  Wait a few minutes, then it will start again, rough idle, stall, etc. 

He was driving it when it happened the first time, then has not got it to run for more than 30 seconds since.

He replaced the fuel filter thinking he got some water in the line.  Fuel pump appears to be working...

He is at a lost, any ideas?
 
need to check for engine error codes...

otherewise it could be one of 2000 things .....
 
I was going to say the same thing ygmn said, check for codes first to narrow down the problem.
 
Unfortunately the check engine light is not coming on, nor are any trouble codes being reported.
 
If engine stalls or sputters it tends to set a code.... have it checked anyways....at local auto parts store..
 
ygmn said:
If engine stalls or sputters it tends to set a code.... have it checked anyways....at local auto parts store..

Sorry for not being clearer.  The check engine light is not coming on.  Also he borrowed a scanner from Autozone, which did not show any stored codes.
 
Check fuel pressure at rail.
did this happen after recent fuel fill?

Check wire and connector on Throttle position sensor. (usually throws code)

Check plug wires (Doubtful)
check plugs (doubtful some more)

Has he done any mods at all?



 
Any of these?


Bulletins/Campaigns/Preliminary Information

  2. #PI01624A Service VME - 4.8 5.3 6.0 LM4 LM7 LR4 LQ4 LQ9 GEN III Engines with MAF Sensor Code P0101 - kw driveability fluctuation idle intermittent MAP rough stall surge hesitation - (Apr 5, 2004)
  4. #04-07-30-013 Info - Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Installation of an Aftermarket Reusable, Excessively Oiled Air Filter - (Mar 5, 2004)
  5. #03-06-01-024B Rattle Noise in Engine (Install Timing Tensioner Kit) - (Mar 4, 2004)
  6. #PI00700B 4.3L L35 Engine Wide Open Throttle DTC P0335 P0336 P0339 - kw crank crankshaft DTC data LU3 miss misfire sensor speed stall tachometer - (Feb 20, 2004)
  7. #PI01470 4.8 5.3 6.0 LM7 LQ4 LQ9 LR4 Engine - Idle Surge , Rough Run , Near Stall or Erratic Idle - kw ac code driveability fluctuation intermittent - (Oct 28, 2003)
  11. #03-06-04-003 Info - Use of New Special Tool J 46363 - Fuel Line Disconnect Tool for Fuel Filter Removal/Installation Procedure on 5.3L Flexible Fuel Engine (RPO L59) - (Jan 7, 2003)

I trimmed out the Diesel stuff...

 
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