All times are UTC - 6 hours [ DST ]




Ask A Question Reply   
Author Message
 
Why does my 1996 Chevrolet Tahoe have problemes starting when it cold and when warm no problems


Share on FacebookShare on DiggShare on DeliciousShare on TechnoratiShare on TumblrShare on Google+
   
Reply with quote  
* Search   
 
User avatar

contributions: 665
Normally a cold start problem is fuel related, whether it be a fuel pump, fuel pressure regulator, etc. As long as all the ignition components check out ok, which I'm assuming they will, you should start doing some fuel system diagnosis.

I'd definitely recommend a fuel pressure check when hot, and when cold to see the difference. You should have a minimum of 55psi with the key on and the pressure should hold steady. If it's less, or if it drops off, then you have a problem. That could be a leaking fuel pressure regulator, which is inside the plastic plenum on the intake manifold...or...a fuel pump that isn't putting out enough pressure. That could be from a restriction like a clogged fuel filter, or just a bad pump.
_______________

GM Dealer Technician For 18+ Years
In the automotive industry for 20+


   
Reply with quote  
Ask A Question Reply   

   Similar Topics   Author   Replies   Views   Most Recent 
New Articles View the first 04 Saturn Vue AWD V6 hard starting

in Saturn

JGBuffy

1

1444

Wed Sep 30, 2015 9:35 pm

carriedi View the latest

New Articles View the first 2003 blowing cold air

in GMC Trucks

Blaskic

3

1055

Mon Jan 09, 2017 1:53 am

carriedi View the latest

New Articles View the first ABS Light Only Appears Momentarily on Startup when Cold

in Ford Cars

searchlight

3

2017

Fri Oct 16, 2015 12:20 am

carriedi View the latest

New Articles View the first 98 Chevy 3/4 ton 4X4 hard to start

in Chevy Silverado

GrannyJo

1

1249

Tue Jul 19, 2016 8:44 pm

carriedi View the latest

New Articles View the first Attachment(s) Clutch drag and hard shifting

[ Go to page: 1, 2 ]

in Saturn

Ellanalli

11

408

Tue Jan 23, 2018 5:54 am

carriedi View the latest

New Articles View the first Car not starting in below freezing weather

in Buick

GregSmith

1

1751

Tue Jan 05, 2016 11:02 am

tech3 View the latest

New Articles View the first 01 cadilliac deville shifts hard odometer not working

in Cadillac

usedcar

4

1263

Sun Dec 20, 2015 2:10 am

sarawillington View the latest


All times are UTC - 6 hours [ DST ]



Search for:
Jump to:  
Contact Us