2000 suburban strt up problems

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2000 suburban strt up problems

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Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Suburban >> 2000 suburban strt up problems

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2000 suburban strt up problems - 10/22/2007 1:11:26 PM

tms65

Posts: 2
Joined: 10/22/2007
Status: offline

i have a 2000 suburban w/ 79k. it has a 5.3 vortek motor (i think its a 2001). for over a month i been having problems when i try to start it up after its already been running. it seems like after i drive it for a bit and let it sit for 15-20 min, it cranks over 4-5 times, i go thru this about 2-3 times, then i restart it again while pressing the gas peddle and it seems to start very rough idle for a few seconds.. i replaced the plugs, wires, cam shaft sensor, coolant sensor, and even the crank shaft sensor, all things others have identified as the potential problem. i'm into it for $500.00+ so far and its not improved at all. i would really appreciate anyone with similar problems to let me know what i should consider next. thanks!!!

Post #: 1

RE: 2000 suburban strt up problems - 10/22/2007 9:48:16 PM

golfer

Posts: 610
Joined: 10/8/2006
Status: offline

Check the fuel pressure regulator , pump , filter.

(in reply to tms65)

Post #: 2

RE: 2000 suburban strt up problems - 10/26/2007 5:03:37 PM

1981camaroz28

Posts: 11
Joined: 10/26/2007
From: South Philly
Status: offline

Starter issue I bet. Install a heat sheild if you know the starter is good. I had the same problem with everyone of my Camaros and the sheild fixed it. It's a chevy thing

(in reply to golfer)

Post #: 3

RE: 2000 suburban strt up problems - 10/30/2007 11:23:59 AM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
Status: offline

Starter heatshield is not an issue with these newer Vortec powerplants.

First I would replace the "Ignition 1" relay in the underhood fuse block.
If this doesn't resolve the issue then unplug the vacuum hose from fuel pressure regulator and check for fuel dripping out, this would indicate a ruptured diaphram, if this looks good then have the injectors cleaned.

These are some of the most common causes for extended crank times and rough idle.

(in reply to 1981camaroz28)

Post #: 4