2000 GMC Safari ext

captainjerry · 05-29-2009, 10:00 AM

I am having a problem when I park the vehicle after driving, and in 3 minutes or so I restart and try to drive, when I depress the gas pedal the engine stumbles, and appears to be flooded or starving. If I gently increase the gas, it will eventually (in 1 ir 2 minutes) start operating properly.
If however, I let the vehicle set for say an hour after driving, it works fine.

I had the ignition wires replaced, throttle position sensor, Distributor cap and rotor, crank shaft position sensor, injectors, fuel filter, and vehicle computer replaced as well. The dealer cannot find the problem but says if I want to throw more $ his way he will try...
any Ideas?

**Basementgeek** · 06-01-2009, 04:34 PM

Hi and welcome to the forum

First I think I would be looking for another person to work on it.

My first thought temp sensor .

BG

**wrench97** · 06-01-2009, 05:16 PM

Have the new shop start by checking the fuel pressure when it is having the problem.

captainjerry · 06-02-2009, 06:06 AM

I know that the fuel pressure is about 41 psi, which is on the low side, but when I had the fuel pump replaced, (forgot to mention this) they tested the pressure.

I have just tried "Lucas fuel injector cleaner" and believe I have some improvement. I will wait and see....thanks

05-29-2009, 10:00 AM	#1 (permalink)
captainjerry Registered User Join Date: May 2009 Posts: 2 OS: windows XP Pro	2000 GMC Safari ext I am having a problem when I park the vehicle after driving, and in 3 minutes or so I restart and try to drive, when I depress the gas pedal the engine stumbles, and appears to be flooded or starving. If I gently increase the gas, it will eventually (in 1 ir 2 minutes) start operating properly. If however, I let the vehicle set for say an hour after driving, it works fine. I had the ignition wires replaced, throttle position sensor, Distributor cap and rotor, crank shaft position sensor, injectors, fuel filter, and vehicle computer replaced as well. The dealer cannot find the problem but says if I want to throw more $ his way he will try... any Ideas?

06-01-2009, 04:34 PM	#2 (permalink)
Basementgeek Moderator, Home Support Join Date: Feb 2005 Location: Central Ohio, USA Posts: 1,362 OS: XP Pro SP2/Vista Ultimate SP2 Blog Entries: 3	Re: 2000 GMC Safari ext Hi and welcome to the forum First I think I would be looking for another person to work on it. My first thought temp sensor . BG __________________ Donating to the forum keeps TSF free for all. Proud member of ASAP Last edited by Basementgeek; 06-01-2009 at 04:51 PM.

06-01-2009, 05:16 PM	#3 (permalink)
wrench97 Moderator, Hardware Team Join Date: May 2008 Location: S.E. Pennsylvania Posts: 17,916 OS: Win7	Re: 2000 GMC Safari ext Have the new shop start by checking the fuel pressure when it is having the problem. __________________ Power Supply and Selection

06-02-2009, 06:06 AM	#4 (permalink)
captainjerry Registered User Join Date: May 2009 Posts: 2 OS: windows XP Pro	Re: 2000 GMC Safari ext I know that the fuel pressure is about 41 psi, which is on the low side, but when I had the fuel pump replaced, (forgot to mention this) they tested the pressure. I have just tried "Lucas fuel injector cleaner" and believe I have some improvement. I will wait and see....thanks